- Today's Editor:
- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- NA Digest Calendar
- Seeking Eigenvalue Routines
- Unique Parameterization of a PSD Matrix
- Least Squares Problem
- Mathematical Programming Glossary
- Special Issue of Parallel and Distributed Computing
- New Address for Konrad-Zuse-Zentrum
- Correction: IMA Workshop on Rational Drug Design
- Correction: Conference on Domain Decomposition Methods
- Conference on the Boundary Element Method
- SPEEDUP Workshop
- Cornell Theory Center Virtual Workshop
- Deterministic and Stochastic Modelling of Biointeraction
- Conference on Hyperbolic Problems
- Scientific Computing, Computer Arithmetic and Validated Numerics
- Position at RWTH Aachen
- Positions at Berkeley National Laboratory
- Position at Northern Illinois University
- Positions at University of Delaware
- Position at Simon Fraser University
- Doctorate Position at the WIAS Berlin
- Postdoctoral Fellowship at IBM T. J. Watson Research Center
- Contents, SIAM Review

**URL for the World Wide Web:**
http://www.netlib.org/na-net/na_home.html
-------------------------------------------------------

From: NA Digest <na.digest@na-net.ornl.gov>

Date: Sun Nov 3 14:49:38 EST 1996

**Subject: NA Digest Calendar**

The Netlib Conferences Database is on the Web at:

http://www.netlib.org/confdb/Conferences.html

NA Digest Calendar

Date Topic Place NA Digest #

Nov. 7- 8 BLAS Technical Forum Eagan, MN 35

Nov. 11-12 Computational Mechanics Codes London, England 35

Nov. 18-20 Overset Composite Grid Symposium Los Alamos, NM 39

Dec. 2- 3 EuroBen Benchmarking Group Utrecht, Netheralnds 39

Dec. 11-13 Carleman Estimate and Inverse Problems Kyoto, Japan 30

Dec. 18-19 Domain Decomposition Leuven, Belgium 40

Dec. 17-19 Mathematics in Signal Processing Warwick, England 48

1997

Jan. 3- 5 Course on Wavelets and Filter Banks San Diego, CA 39

Jan. 5- 7 Discrete Algorithms New Orleans, LA 15

Jan. 5-12 Computational Mathematics Rio de Janeiro, Brazil 08

Jan. 5-12 Numerical Linear Algebra Rio de Janeiro, Brazil 13

Jan. 8-10 Numerical and Mathematical Elasticity Kyoto, Japan 30

Jan. 15-18 Numerical Linear Algebra, Optimization Parana, Brazil 34

Jan. 24-26 Multi-Scale Problems Kiel, Germany 38

Jan. 27-31 Maths-in-Industy Study Group Melbourne, Australia 11

Feb. 2- 6 Australian Applied Mathematics Lorne, Australia 40

Feb. 9-13 Hyperbolic Problems Zuerich, Switz. 41

Feb. 24-28 Optimization and Optimal Control Lambrecht, Germany 37

Mar. 10-12 Scientific Computing Hong Kong 25

Mar. 12-14 Algorithms and Complexity Rome, Italy 24

Mar. 13-14 SPEEDUP Workshop Cadro-Lugano, Switz. 41

Mar. 14-17 SIAM Parallel Processing Minneapolis, MN 32

Mar. 16-21 Approximation and Optimization Caracas, Venezuela 21

Mar. 20-22 Multiwavelets Huntsville, TX 37

Mar. 21-22 AMS Session on Approximation Theory Memphis, TN 11

Apr. 1- 3 Monte Carlo Methods Brussels, Belgium 16

Apr. 4- 5 SouthEast-Atlantic Secion of SIAM Raleight, NC 39

Apr. 9-13 Copper Mt. Multigrid Copper Mountain, CO 33

Apr. 14-18 Computational Issues in Drug Design Minneapolis, MN 32

Apr. 17-18 Meeting Honoring Bill Morton Oxford, England 26

May 2- 4 Partial Differential Equations Detroit, MI 40

May 12-14 Materials Science Philadelphia, PA 32

May 19-21 Applications of Dynamical Systems Snowbird, UT 27

May 21-24 Macromolecular Modelling Berlin, Germany 31

May 26-30 Computational Heat Transfer Cesme, Turkey 05

May 27-28 Computational Science and Engineering Hefei, China 38

June 1- 5 Computer Science Education Uppsala, Sweden 38

June 16-18 Computer Methods in Water Resources Byblos, Lebanon 35

June 16-18 Mathematical Issues in Geosciences Albuquerque, NM 18

June 16-21 Iterative Methods Milovy, Czech Rep. 37

June 18-21 Principles + Practice of Parallel Prog. Las Vegas, NV 27

June 24-27 Dundee NA Conference Dundee, Scotland 13

July 3- 4 CFD in Minerals, Metal & Power Melbourne, Australia 33

July 4- 5 Honor Lothar Collatz Hamburg, Germany 32

July 9-11 Computational Fluid Dynamics Twente, Netherlands 38

July 9-12 Iterative Methods Laramie, WY 36

July 13-18 SIAM Annual Meeting Stanford, CA 36

July 14-18 Theoretical and Computational Acoustics New York, NY 14

Aug. 4- 8 Large Eddy Simulation Ruston, LA 40

Aug. 10-14 Domain Decomposition Boulder, CO 40

Aug. 18... Radial Basis Functions Asilomar, CA 32

Aug. 24-29 IMACS World Congress Berlin, Germany 07

Aug. 24-29 Fast Algorithms Berlin, Germany 37

Aug. 28-31 Stochastic Modelling of Biointeraction Sofia, Bulgaria 41

Sep. 1- 5 Numerical Solution of ODEs Halle, Germany 13

Sep. 8-12 Parallel Computing Technologies Yaroslavl, Russia 39

Sep. 9-12 Boundary Element Method Rome, Italy 41

Sep. 10-12 Computer Arithmetic Lyon, France 41

Sep. 15-18 Boundary Integral Methods Manchester, England 27

Sep. 24-26 Dutch Numerical Mathematicians Zeist, Netherlands 38

Sep. 15-19 Scientific Computing & Diff. Eqns. Grado, Italy 26

Sep. 29-.. ENUMATH-97 Heidelberg, Germany 50

Oct. 13-16 Computational Methods, Function Theory Nicosia, Cyprus 34

------------------------------

From: Susan Morrison <susanm@physics.gla.ac.uk>

Date: Mon, 28 Oct 1996 11:25:31 GMT

**Subject: Seeking Eigenvalue Routines**

Dear numerical analysis experts,

Does anyone have any experience with algorithms for

finding all eigenvalues of a NON-HERMITIAN matrix with

COMPLEX entries? The matrices with which I am working are

very large and the current method which I employ involves

the Eispack routine COMLR. Storage of the matrix is

computationally expensive and scales roughly as n_s to the

power 6 where n_s is of the order of 10. The matrices

concerned are not sparse. I would be interested to hear

of any recent developments in Lancos algorithms for complex,

non-hermitian matrices which are known to be reliable for

large matrices. All suggestions will be carefully considered

and greatly appreciated.

Susan E. Morrison

Dept. of Physics and Astronomy

University of Glasgow, G12 8QQ

Scotland, UK

------------------------------

From: Walter Prahl <prahlwh@nyc.beehive.com>

Date: Tue, 29 Oct 1996 18:38:36 -0500

**Subject: Unique Parameterization of a PSD Matrix**

Is there a way to uniquely parameterize all NxN positive semidefinite

matrices for a given N? I want to find the PSD matrix that optimizes

a certain function, so I need to parameterize the space of all NxN PSD

matrices. If I map my parameter vector directly to the N*(N+1)/2

elements of a lower triangular matrix G then GG' is PSD, but this

parameterization is not unique: G is a matrix square root, and is not

unique. Therefore, I suspect that fewer than N*(N+1)/2 parameters are

needed to span the space of all NxN PSD matrices. I seem to need a

sort of inverse Cholesky factorization.

Any comments or pointers would be greatly appreciated.

Walter Prahl Phone: 212-756-1912

Sanford C. Bernstein & Co. Fax: 212-756-4550

767 Fifth Avenue, 21st Floor Email: prahl@beehive.com

New York, NY 10153-0185

------------------------------

From: Fwu-Shing Horng <horng@mathpost.la.asu.edu>

Date: Wed, 30 Oct 1996 12:19:15 -0700 (MST)

**Subject: Least Squares Problem**

Dear all "na-neters",

Currently I'm working on least squares problems with

rank deficiency and constraints. Could anybody send

me your articles or tell me any articles or books

concerning that topic? Thanks in advance.

Fwu-Shing

Fwu-Shing Horng

Department of Mathematics

Arizona State University

Phone : (602) 965-0452

Email : horng@mathpost.la.asu.edu

------------------------------

From: Harvey Greenberg <guest6@dutiosd.twi.tudelft.nl>

Date: Sat, 2 Nov 1996 14:14:50 +0100 (MET)

**Subject: Mathematical Programming Glossary**

Mathematical Programming Glossary

November 2, 1996

The Mathematical Programming Glossary has been fairly stable since its

introduction last July. I would, however, like to encourage you to submit

a supplementary note. As stated in the "Added Information" section, you

can contribute to the glossary with a LaTeX note (about 2-3 pages).

Please look at the ones I have there now by clicking on the list of

"Supplements". Note that each note gives the author with a link to

his/her homepage.

The URL for the glossary is:

http://www-math.cudenver.edu/~hgreenbe/glossary/glossary.html

For further information please contact me.

Thank you,

Harvey J. Greenberg

hgreenbe@carbon.cudenver.edu

http://www-math.cudenver.edu/~hgreenbe

------------------------------

From: Rupak Biswas <rbiswas@nas.nasa.gov>

Date: Tue, 29 Oct 1996 13:42:19 -0800

**Subject: Special Issue of Parallel and Distributed Computing**

FIRST CALL FOR PAPERS

Special Issue of the JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING on

Dynamic Load Balancing

Edited by: Andrew Sohn, Rupak Biswas, and Horst Simon

Papers are solicited for a special issue of the Journal of Parallel and

Distributed Computing (JPDC) to be tentatively published in January 1998.

Dynamic load balancing is extremely important for efficient adaptive grid-based

computations on distributed-memory multiprocessors. Numerical solutions to

problems in computational fluid dynamics, computational chemistry, and

semiconductor simulation involve the use of structured and/or unstructured

grids. Parallel computation of such problems on distributed-memory machines

typically entails two steps. First, as a preprocessing step, the computational

mesh is partitioned into smaller submeshes. Second, the partitioned submeshes

are assigned to processors based on a mapping strategy. While this static

partitioning and mapping approach is appropriate for steady state calculations

that do not change in computational intensity over time and space, it is

grossly inefficient for unsteady, adaptive calculations.

As the computational behavior changes non-uniformly, some processors may have a

lot more work to perform than others. The imbalance in the computational load

implies that the initial partitioning of the mesh is no longer efficient. It

is therefore indispensable that the amount of work each processor performs be

balanced at runtime in order to increase processor utilization and improve

performance. Balancing the runtime computational load, however, is often very

difficult due to many practical issues. These include a reliable measurement

of the computational load, the amount of runtime data movement, and the

minimization of inter-processor communication. The main purpose of this

special issue is to report on state-of-the-art dynamic load balancing methods

for real-world computational science and engineering problems.

Topics of interest include, but not limited to, frameworks for global and/or

local load balancing, comparative studies of load balancing methods, fast and

high quality mesh partitioners, comparative studies of mesh partitioners,

metrics for accurate load measurement, models to predict communication

behaviors relevant to load balancing, discussions on the effects of load

balancing on real-world problems, runtime data/workload distribution and

migration methods to achieve load balancing, and parallel mesh adaption

procedures. Authors should follow the JPDC manuscript format as described in

the "Information for Authors" at the end of each issue of JPDC. The manuscript

review process will be done electronically. A PostScript version of the

manuscript should be sent to one of the co-guest editors by February 28, 1997.

Authors will be notified of the review decision by July 31, 1997. Only

original, unpublished work will be considered; manuscript resembling any

previously published work in a journal are unacceptable.

Paper submission deadline: February 28, 1997

Review decision by: July 31, 1997

Publication date: January 1998

Additional information at http://www.cis.njit.edu/sohn/jpdc

Andrew Sohn Rupak Biswas Horst Simon

CIS Dept. MS T27A-1 MS 50B-4230

NJIT NASA Ames Res Ctr Lawrence Berkeley Natl Lab

Newark, NJ 07102 Moffett Field, CA 94035 Berkeley, CA 94720

USA USA USA

sohn@cis.njit.edu rbiswas@nas.nasa.gov simon@nersc.gov

------------------------------

From: Hans-Hermann Frese <frese@zib.de>

Date: Wed, 30 Oct 1996 15:48:17 +0100

**Subject: New Address for Konrad-Zuse-Zentrum**

The Konrad-Zuse-Zentrum fuer Informationstechnik Berlin (ZIB)

has moved to a new building on the campus of the Free University

in Berlin, Germany.

Our new address is:

Konrad-Zuse-Zentrum fuer Informationstechnik Berlin (ZIB)

Takustrasse 7

D-14195 Berlin-Dahlem

Germany

Phone: + 49 - 30 - 8 41 85 - 0

or + 49 - 30 - 8 41 85 - ext.

Fax: + 49 - 30 - 8 41 85 - 125

e-mail: surname@zib.de

WWW: http://www.zib.de/

Hans-Hermann Frese

------------------------------

From: Robert Gulliver <gulliver@ima.umn.edu>

Date: Wed, 30 Oct 1996 14:04:17 -0600 (CST)

**Subject: Correction: IMA Workshop on Rational Drug Design**

IMA Workshop: Rational Drug Design

April 7-11, 1997

Organizers: Jeff Blaney (Chiron), Richard Dammkoehler (Washington

University), Tony Hopfinger (Univ. of Illinois-Chicago), Jeffrey Howe

(Upjohn Company) and Donald Truhlar (Minnesota Supercomputer Institute).

- Sponsored jointly with the Minnesota Supercomputer Institute -

Drug research and discovery are of critical importance in human

health care and are becoming increasingly expensive, while the need for new

drugs is also increasing. Computational approaches for drug discovery and

optimization have proven successful in many recent research programs.

These methods have grown in their effectiveness not only because of

improved understanding of the basic science --- the biological events and

molecular interactions that define a target for therapeutic intervention

--- but also because of advances in algorithms, representations, and

mathematical procedures for studying such processes.

This workshop will bring together top researchers in computer-aided

drug discovery, computational chemistry, mathematics, and computer science

to present state-of-the-art research in both the science and the underlying

mathematics, and to identify new problems for possible collaborations.

General subject areas of the workshop will include receptor-based

applications such as binding energy approximations, molecular docking, and

de novo design; non-receptor-based applications such as molecular

similarity, conformational analysis, and structural diversity; molecular

dynamics simulations and protein folding simulations; plus related issues

such as drug-delivery modelling and scientific visualization. The workshop

will also focus on the mathematical procedures and algorithms upon which

the scientific applications are based. These include graph theory and

topology, non-linear multidimensional optimization, the processing and

representation of information obtained from simulation studies, global

optimization and search strategies, plus performance enhancement through

parallel computing architectures. In addition to the oral presentations,

the workshop will also include two panel discussions, one examining the

most important current problems in drug design that may be computationally

tractable, and the second on emerging areas of study in which improvements

in scientific knowledge over the next few years may enable the fruitful

application of computational methods. The overall goal of this workshop is

to bring together scientists and mathematicians to examine the current

state of this very broad and interdisciplinary field of research, and to

identify the areas where cross-fertilization of ideas and collaborative

research might most effectively advance the field.

Institute for Mathematics and its Applications, University of Minnesota,

514 Vincent Hall, Minneapolis, Minnesota 55455. Phone (612) 624-6066;

http://www.ima.umn.edu or e-mail: staff@ima.umn.edu

------------------------------

From: Frederic Nataf <nataf@cmapx.polytechnique.fr>

Date: Fri, 1 Nov 1996 09:07:27 +0100

**Subject: Correction: Conference on Domain Decomposition Methods**

I am oganizing a minisymposium for the 10th international domain

decomposition method at Boulder Colorado. I thank you for having published

the announcement in nanet. Unfortunately, the url of the conference is

wrong. The correct one is

http://www-math.cudenver.edu/dd10

(and not /www.-math.cudenver.edu/dd10).

Thanks,

Frederic Nataf

------------------------------

From: Cranfield <SMITH@rmcs.cranfield.ac.uk>

Date: Mon, 28 Oct 1996 9:55:52 GMT

**Subject: Conference on the Boundary Element Method**

CALL FOR PAPERS

19th World Conference on the Boundary Element Method

9 - 12 September 1997, University of Rome, Italy

Incorporating the Fifth International Conference on

Computer Aided Optimimum Design of Structures

8 - 10 September 1997

CONFERENCE CHAIRMEN

Prof C A Brebbia, Dr M H Aliabadi

Wessex Institute of Technology, UK

Prof P Santini, Prof P Orlandi

Facolta de Ingegneria, Universita "La Sapienza", Italy

LOCAL ORGANISING COMMITTEE

Prof M Marchetti, Dr S Corradi, Dr G Ikonoumoupulos, Dr D Vahedi

Facolta de Ingegneria, Universita "La Sapienza", Italy

CONFERENCE SECRETARIAT

Liz Kerr, BEM 19, Wessex Institute of Technology

Ashurst Lodge, Ashurst, Southampton, SO40 7AA, UK

Tel: 44 (0) 1703 293223, Fax: 44 (0) 1703 292853

EMail: liz@wessex.witcmi.ac.uk

CALL FOR PAPERS

Three copies of an abstract of no more than 300 words, clearly stating

the purpose, results and conclusion of the work to be described in the final

paper should be submitted to the Conference Secretariat as soon as

possible and no later than 10 January 97. The camera-ready manuscript

of the final full length paper will need to be received by 30 May 1997

and final acceptance will depend on the full length paper.

The Proceedings of the Conference will be

published in hardback book form by Computational Mechanics

Publications and will be available to delegates at the time of

registration. The language of the Conference will be English.

OPTI 97 CONFERENCE

The practical applications of structural

optimisation techniques which are well recognised by industry offer

important advantages in the design of aircraft and are used in the

analysis of automotive, civil and mechanical engineering components.

Computer-aided structural design is enhanced by adding optimisation

software and its influence cannot be over emphasised. By linking

both techniques, integrated packages for structural optimisation are

obtained. The objective of this Conference is to bring together

researchers and engineers in order to communicate recent advances in

structural optimisation, and also to demonstrate how optimisation can

be applied in engineering practice.

BEM CONFERENCE TOPICS

Elastodynamics, Fracture Mechanics & Fatigue, Inelastic Problems

Composite Materials, Plates and Shells, Contact Mechanics

Geomechanics, Material Processing and Metal Forming, Soil Dynamics

Electromagnetics, Biomechanics, Fundamental Principles

Computational Techniques, Refinement Methods & Adaptive Techniques

Sensitivity Analysis, Inverse Problems, Applications in Optimisation

Industrial Applications, Heat Transfer, Fluid Dynamics & Aerodynamics

Compressible & Incompressible Flow, Viscous Flow, Non-Newtonian Flow

Groundwater Flow, Interfacial & Free Surface Flow, Transport Problems

Wave Propagation Problems, Acoustics, High Performance Computing

Algorithms for Parallelization & Vectorization of BEM

Massively Parallel Processing, Expert Systems in BEM

------------------------------

From: Karsten Decker <decker@cscs.ch>

Date: Mon, 28 Oct 1996 15:26:17 +0100

**Subject: SPEEDUP Workshop**

Preliminary Announcement

21st SPEEDUP Workshop

Distributed Computing:

HPC Capabilities at the Desk-Top for Everybody

Hotel Cadro Panoramica

Cadro-Lugano

Switzerland

March 13-14, 1997

The widespread availability of fast networks, technologies to

transparently integrate heterogenous computing resources, and languages

to develop applications which are portable over a variety of different

hardware platforms and operating systems have put coherent/seamless

distributed computing environments and applications well within our

reach. These environments will not only make specialized and

geographically distributed resources easily accessible at the desk-top

for everybody, but will also ameliorate their utilization, thus

contributing to improved economics of high-performance computing

resources in particular. In the long run, they will also change the way

we work in research and business.

The 21st SPEEDUP workshop aims at providing a forum for members of

academic institutions and business enterprises to meet and to discuss

and learn about the latest developments related to all aspects of

distributed computing and distributed applications. Topics to be covered

include but will not be limited to

-- Programming models, tools, and environments

-- Development and management of distributed applications

-- Performance evaluation, tuning, and benchmarking

-- Task distribution and load balancing

-- Application responsiveness and scalability

-- Enabling technologies

-- Distributed information systems

-- Very large databases

-- Resource management and configuration

-- Authentication and security

-- Reliability

-- Cooperative design and development methods

-- Tele-working and collaborative environments

The proceedings of the workshop will be published in the first 1997

issue of the SPEEDUP, to appear in April/May 1997.

In 1997, the SPEEDUP will become ten years old. Therefore, in

conjunction with the 21st SPEEDUP workshop, we will also celebrate the

10th anniversary of the SPEEDUP Initiative. Several key note speakers

will address the history, the status, and the future perspectives of

high-performance computing in Switzerland.

For the latest information on the program the interested reader is

referred to

http://www.speedup.ch/Workshops/Workshop21Ann.html

Further information on the SPEEFUP Society can be obtained from

http://www.speedup.ch/

------------------------------

From: Jeanne C. Butler <jeanne@tc.cornell.edu>

Date: Mon, 28 Oct 1996 09:40:04 -0500

**Subject: Cornell Theory Center Virtual Workshop**

Cornell Theory Center Virtual Workshop

Parallel Programming with MPI and HPF

January 8 to March 7, 1997

Registration deadline November 27, 1996

The Virtual Workshop is an entirely over-the-network program for

studying high performance computing. You work at your own pace from

your home machine, with access to Web-based course materials, the CTC's

world-class IBM RS/6000 SP, and dedicated e-mail consulting.

This workshop covers two different approaches to developing parallel

programs for a distributed memory environment: the MPI message-passing

library (January 8 - February 7) and the HPF extensions to the Fortran

90 language (February 10 - March 7). You may choose to study one or

both.

Additional registration and course information is available at:

http://www.tc.cornell.edu/Edu/VW/

------------------------------

From: Tanya Kostova <destobio@amigo.acad.bg>

Date: Wed, 30 Oct 1996 10:23:12 +0200 (EET)

**Subject: Deterministic and Stochastic Modelling of Biointeraction**

INTERNATIONAL CONFERENCE ON DETERMINISTIC AND

STOCHASTIC MODELLING OF BIOINTERACTION

August 28th - August 31st 1997

Sofia, BULGARIA

We announce the International Conference on

"Deterministic and stochastic modelling of biointeraction"

organised by the Institute of Mathematics and Informatics

and the Central Laboratory for Parallel Processes

at the Bulgarian Academy of Sciences from August 28th to August 31st 1997.

The meeting will be held in Sofia, Bulgaria's capital.

Topics of the conference.

1. Deterministic and stochastic approaches to mathematical modelling in :

* population dynamics;

* epidemiology;

* immunology;

* genetics;

* neurophysiology;

* molecular biology;

* cell biology;

* pattern formation;

* bioecology;

2. Computational biomathematics.

PROGRAMME COMMITTEE, in alphabetical order (the list is still incomplete).

Jim Cushing (USA), Odo Diekmann (The Netherlands),

Mats Gyllenberg (Finland), Mimmo Iannelli (Italy), Peter Jagers (Sweden),

Marek Kimmel (USA), Jia Li (USA), Fabio Milner (USA),

Hal Smith (USA), Anton Wakolbinger (Germany), Nikolay Yanev (Bulgaria)

LOCAL ORGANIZING COMMITTEE (in alphabetical order):

M. Bojkova, N.Chipev, V.Covachev, L.Dragnev, M.Kandev, T.Kostova (chair),

I.Lirkov, D.Vassileva, P. Vassilevski

INVITED SPEAKERS WHO HAVE CONFIRMED THEIR PARTICIPATION

(list not yet complete):

J.Cushing, "Nonlinear Dynamics and Chaos in Insect Populations: Deterministic/

Stochastic Models and Laboratory Experiments";

O.Diekmann, "Epidemic Models" or "Physiologically Structured

Population Models";

M.Iannelli, TBA;

P.Jagers,"Population Size Dependence in Branching Populations";

M.Kimmel, "Branching -within -branching and Intracellular

Genetics of Mitochondria";

J.Li, TBA;

F.Milner, "Host-Parasite Systems".

SESSIONS

Special sessions are planned. Please, if you would like to organise a special

session, point this out in the Registration form and send it back not later

than December 30 1996. If you would like to participate in a session,

please, contact the organisers of the Conference and/or the session organiser.

The following topics for special sessions

have been proposed up to now (by alphabetical order of last names).

"Dynamics of Metapopulations", proposed by M. Gyllenberg (Finland);

"Non-linear Dynamics in Biochemical Pathways ",

proposed by J.-F. Hervagault (France);

"Numerical Methods for Age-structured population models",

proposed by M.Iannelli (Italy);

"Stochastic Models in Cell and Mollecular Biology",

proposed by M.Kimmel(USA);

"Deterministic Mathematical Epidemiology",

proposed by Jia Li;

"Aquatic Population Dynamics",

proposed by A.Medvinsky(Russia) and H. Malchow(Germany);

"Stochastic Modelling of Contact Structures in AIDS/HIV and Other

Infectious Diseases",

proposed by C. Mode(USA).

To obtain detailed information on the conference, on Bulgaria and on the

Institute of Mathematics please look at our Web page

WWW.MATH.ACAD.BG/SPECIAL/destobio.html

or send:

- e-mail to DESTOBIO@ISCBG.ACAD.BG;

- ordinary mail to

Dr. Tanya Kostova,

Institute of Mathematics,

Bulgarian Academy of Sciences,

Acad. G. Bonchev str., block 8,

1113 Sofia, Bulgaria;

- fax to (+3592) 971 36 49 (specify Dr.T.Kostova).

------------------------------

From: Guido Giese <ggiese@sam.math.ethz.ch>

Date: Wed, 30 Oct 1996 15:45:22 +0100 (MET)

**Subject: Conference on Hyperbolic Problems**

We'd like to announce the Seventh International Conference on Hyperbolic

Problems at the ETH Zuerich / Switzerland from February 9-13, 1998.

The aim of the conference is to bring together scientifists with interests

in theoretical, applied and computational aspects of hyperbolic partial

differential equations. There will be an amphasis on nonlinear problems

and applications in different fields. As it has been done in past, a

special effort will be made to make it possible for young scientists to

attend to promote their interaction with the more senior researchers.

More information about the Conference can be found in the WWW:

http://www.sam.math.ethz.ch/~hyp98/index.html

or can be requested pre Email: hyp98@sam.math.ethz.ch

------------------------------

From: Rudolf Lohner <ae34@iamk4525.mathematik.uni-karlsruhe.de>

Date: Thu, 31 Oct 1996 17:27:00 +0100 (MET)

**Subject: Scientific Computing, Computer Arithmetic and Validated Numerics**

S C A N - 9 7

GAMM/IMACS International Symposium on Scientific Computing,

Computer Arithmetic and Validated Numerics,

September 10 - 12, 1997,

Ecole Normale Superieure de Lyon, France

Local Organization: Jean-Michel Muller

The conference continues the series of SCAN-Symposia which have

previously been held at Karlsruhe, Basel, Albena, Oldenburg,

Vienna and Wuppertal under the joint sponsorship of GAMM and

IMACS. These conferences have traditionally covered the numerical

and algorithmic aspects of Scientific Computing, with a strong

emphasis on the algorithmic validation of results and on

algorithmic and arithmetic tools for this purpose.

Validation or verification characterizes those efforts in

Scientific Computing which strive to generate - concurrently with

numerical results - qualitative and quantitative assertions about

the results which are correct in a rigorous mathematical sense.

Typical examples of such efforts are the specification of a

domain in which a solution of a given problem exists and the

computation of close upper and lower bounds for the result of a

given problem.

Assertions from algorithmic validation have the same correctness

quality as assertions obtained by classical mathematical methods

of derivation and proof.

Because of this quality, Validated Numerics has developed into an

important subject within the fast growing area of Scientific

Computing. SCAN-97 will provide a forum for the presentation of

the latest research and developments in theory, algorithmic and

arithmetic design for Validated Numerics, demonstration of new

software available for Validated Numerics, reporting of

interesting case studies in industrial and scientific

applications of Validated Numerics, and for the discussion of new

directions in research and development suggested by other

advances in Scientific Computing. Potential new directions are

the use of parallel architectures for the implementation of

validation algorithms and the use of validation ideas in Computer

Algebra.

Furthermore, the conference should help in the dissemination of

the ideas and potentials of Validated Numerics to interested

scientists from other areas of Scientific Computing.

Within the scope of SCAN-97, there is no restriction regarding

the mathematical or applicational background of the problems to

be reported: Algebra, analysis, optimization, probability, etc.,

are equally welcome.

Scientific committee:

G. Alefeld (Karlsruhe), J.C. Bajard (Marseille), J.M. Chesneaux

(Paris), G.F. Corliss (Milwaukee), M. Daumas (Lyon), A. Frommer

(Wuppertal), A. Guyot (Grenoble), G. Heindl (Wuppertal),

J. Herzberger (Oldenburg), R.B. Kearfott (Lafayette), S. Knowles

(Bristol), V. Kreinovich (El Paso), U. Kulisch (Karlsruhe),

G. Mayer (Rostock), D.M. Matula (Dallas), A. Mignotte (Lyon),

J.M. Muller (Lyon), M. Pichat (Lyon), S.M. Rump (Hamburg),

H. J. Stetter (Vienna), Ch. Ullrich (Basel), T. Yamamoto

(Matsuyama).

Info: To be included in the mailing list send (as soon as

possible) your electronic and postal addresses to e-mail:

SCAN97@lip.ens-lyon.fr

Deadline for conference registration: July 15, 1997.

------------------------------

From: Robert Schneiders <robert@feanor.informatik.rwth-aachen.de>

Date: Wed, 30 Oct 96 14:05:37 +0100

**Subject: Position at RWTH Aachen**

Opportunity at RWTH Aachen - Unstructured grid generation

A new research group on CFD will be established at the Technical

University of Aachen in January 1997. For a project on grid

generation we have an open position for a canditate with background

in mathematics or computer science (Master/Diplom).

The successfull candidate will design and implement an

algorithm for the generation of unstructured hexahedral element

meshes that will be used in other projects for the calculation

of the flowfield around an airfoil. She / he is expected to

have good programming skills, interest in geometric algorithms,

background in numerical algorithms and willingness to cooperate

with other members of the research group. Knowledge in multiscale

concepts (wavelets) and cfd would be a plus.

The salary is according to Bat II/2 or BAT II. The project starts

on January 1, 1997, for three years. Please forward resumes to:

Prof. Dr. Wolfgang Dahmen

Institut fuer Geometrie und Praktische Mathematik

RWTH Aachen

Templergraben 55

52056 Aachen

Phone: +49-241-803951

Dr. Robert Schneiders

RWTH Aachen

Lehrstuhl fuer Angewandte Mathematik, insbesondere Informatik

Ahornstr. 55

52056 Aachen

Phone: +49-241-804558

Email: robert@feanor.informatik.rwth-aachen.de

For more information check

http://www-users.informatik.rwth-aachen.de/~roberts/sfbjob.html

http://www.lufmech.rwth-aachen.de/sfb1580/

------------------------------

From: Roberta Boucher <RLBoucher@lbl.gov>

Date: Wed, 30 Oct 96 15:23:16 PST

**Subject: Positions at Berkeley National Laboratory**

BERKELEY NATIONAL LABORATORY - Postdoc Positions Available

The Berkeley National Laboratory has instituted a major program in

the computing sciences. This program includes the National Energy

Research Scientific Computing Center (NERSC); the Energy Sciences

Network; computational science, numerical mathematics, and computer

science research departments; and joint R&D projects with the

scientific, academic, and industrial communities. The center has

the following opportunities currently available:

Scientific Computing Group

Job NERS178

$3840-4135

NOTE: This is a full-time, one-year-term appointment with the

possibility of renewal. Applicants should send c.v., publication list,

and names of three references.

DUTIES: Essential -- The appointee will participate in a research

effort implementing large scale sparse matrix problems on the 512

processor Cray T3E at NERSC, with the short term goal of developing

eigenanalysis codes based on the Lanczos algorithm. The position

requires significant programming and technical interaction with other

members of NERSC and the scientific computing community in Berkeley.

The successful applicant must be able to work with and extend existing

software and develop reliable and readable code. Throughout the

project, the appointee should be able to investigate issues of

algorithmic design as well as use the resulting software to

investigate physical phenomena. She or he will also be expected to

prepare results for publication in scientific journals and for

presentations at national meetings.

QUALIFICATIONS: Essential -- Ph.D. within the last four years in

applied mathematics, computer science, engineering, or related field.

Experience with FORTRAN or C, and scalable parallel architectures is

essential. Familiarity with Krylov subspace methods and their

applications in science and engineering is highly desirable. Ability

to summarize research results for publication and presentations.

Ability to interact and collaborate with other research groups.

Marginal --Experience with C++, development of linear algebra library

software.

NERSC Future Technologies Group

Job NERS179

$3840-4135

NOTE: This is a full-time, one-year-term appointment with the

possibility of renewal. Applicants should send c.v.,

publication list, and names of three references.

DUTIES: Essential -- The appointee will participate in a research

effort implementing scientific applications on the COMPS cluster at

Berkeley Labs. The COMPS ("clusters of multi-processor systems)

project is working on the definition, evaluation, and integration of

"next generation" computing architectures into the scientific

environment. The COMPS architecture is that of many mid-sized SMP

("symmetric multiprocessor") computers connected together, and

to the outside world, via several high speed networks. The applicant

is expected to implement a variety of numerical algorithms of interest

to collaborators in the Material Sciences Division on the COMPS

cluster, and carry out studies of memory hierarchy and network

interconnect performance in the context of scientific computations.

The position requires significant programming and technical

interaction with other members of NERSC and the scientific computing

community in Berkeley. The successful applicant must be able to work

with and extend existing software and develop reliable and readable

code. Throughout the project, the appointee should be able to

investigate issues of algorithmic design, as well as computer and

networking performance. She or he will also be expected to prepare

results for publication in scientific journals and for presentations

at national meetings.

QUALIFICATIONS: Essential -- Ph.D. within the last four years in

applied mathematics, computer science, engineering, or related field.

Experience with FORTRAN or C, and scalable parallel architectures is

essential. Familiarity with HPF, MPI, and background in numerical

algorithms is highly desirable. Ability to summarize research

results for publication and presentations. Ability to interact and

collaborate with other research groups.

Qualified individuals are invited to submit application materials to

One Cyclotron Road, MS 938A, Berkeley, CA 94720. Or via e:mail to

Supercomputing-employment@LBL.gov.

Please reference the job number indicated. Additional opportunities

at NERSC and Berkeley Lab can be viewed at:

http://www.lbl.gov/LBL-Documents/CJOs/

------------------------------

From: Hamid Bellout <bellout@math.niu.edu>

Date: Thu, 31 Oct 96 09:53:04 CST

**Subject: Position at Northern Illinois University**

NORTHERN ILLINOIS UNIVERSITY

Department of Mathematical Sciences

Anticipated assistant professorship with a specialization in numerical

partial differential equations. The successful candidate should have

a strong numerical component as well as theoretical background in

partial differential equations. Ph.D. or equivalent and strong potential

in research and teaching required. Application (vita), transcripts,

three letters of reference, and a description of research program should

be sent to: Numerical PDE Position, c/o Professor William D. Blair, Chair,

Department of Mathematical Sciences, Northern Illinois University,

DeKalb, IL 60115 by January 31, 1997. NIU is an Equal Employment

Opportunity/Affirmative Action Employer and recognizes dual career issues.

------------------------------

From: Shangyou Zhang <szhang@math.udel.edu>

Date: Sun, 27 Oct 1996 15:13:05 -0500 (EST)

**Subject: Positions at University of Delaware**

University of Delaware

The Department of Mathematical Sciences invites applications for two

tenure/tenure-track positions to begin September 1, 1997.

The first position is in applied mathematics at any level but strong

preference will be given those individuals at the associate or entry

full professor level with an established record both in publication

and funded research. Expertise in areas of wave propagation, fluid

dynamics, material science and/or inverse problems as well as

experience and interest in establishing links with industry and

other academic disciplines will weigh heavily in the candidate's

favor. Evidence of effective teaching is essential.

The second, junior level position, is in scientific computation, with

prospects of complementing the first position.

Applicants should send a curriculum vitae (including funding history),

reprints and/or preprints and arrange to have three letters of

recommendation sent to

Applied Mathematics Search Committee

Department of Mathematical Sciences

University of Delaware

Newark, DE 19716

Applications must be received by January 1, 1997 to receive full

consideration.

The University of Delaware is an equal opportunity employer which

encourages applications from qualified minority group members and women.

------------------------------

From: Simon Fraser University <rdr@math.sfu.ca>

Date: Mon, 28 Oct 1996 14:24:09 -0800

**Subject: Position at Simon Fraser University**

DEPARTMENT OF MATHEMATICS AND STATISTICS

SIMON FRASER UNIVERSITY

VANCOUVER, BRITISH COLUMBIA

POSITION IN APPLIED AND COMPUTATIONAL MATHEMATICS

The Department of Mathematics and Statistics of Simon Fraser University

invites applications for a tenure-track position in Applied and

Computational Mathematics at the Assistant Professor level starting

September 1st, 1997. At this time our emphasis is on complementing current

strengths in mechanics (fluids and solids) and scientific computing, and

developing new expertise in industrial and environmental modelling.

Applicants are expected to have completed a PhD degree at the time of

appointment, have post-doctoral experience or a proven research record, and

be able to demonstrate strong potential in both research and teaching.

Applications, including curriculum vitae, descriptive statements on

research plans and teaching activities should be sent, by 15 January 1997,

to:

Dr. J. L. Berggren, Chair

Department of Mathematics and Statistics

Simon Fraser University

Burnaby, BC V5A 1S6

Canada

Please arrange for three letters of reference to be sent directly from the

referees.

Further information on the department and the university can be found on

the WWW site

http://www.math.sfu.ca/mast_home.html

The position is subject to final budgetary approval.

Simon Fraser University is committed to the principle of equity in

employment and offers equal employment opportunities to all qualified

applicants. In accordance with Canadian immigration requirements, this

advertisement is directed to Canadian citizens and permanent residents of

Canada.

------------------------------

From: Angela Kunoth <kunoth@wias-berlin.de>

Date: Mon, 28 Oct 96 19:03:06 +0000

**Subject: Doctorate Position at the WIAS Berlin **

The research group "Pseudodifferential and Integral

equations" at the Weierstrass-Institut WIAS in Berlin

is seeking for a Ph.D. candidate working on

"Approximation methods for differential and

integral equations (96/9)"

starting December 1, 1996. The project will be

supervised by Dr. Gunther Schmidt, Prof. Dr. Proessdorf

(WIAS Berlin) and Prof. Maz'ya (Linkoeping, Sweden).

The salary is BAT-OIIa/2 for 20 hrs/week. Applications

for this position (96/9) with the usual enclosures

(curriculum vitae, certificates, diploma) should be

send until November 15, 1996, to:

Prof. Dr. J. Sprekels

Direktor des Weierstrass-Instituts

fuer Angewandte Analysis und Stochastik

im Forschungsverbund Berlin e.V.

Mohrenstr. 39

10117 Berlin

Germany

For further information, please contact Dr. Gunther Schmidt

at schmidt@wias-berlin.de, phone +49-30-20377-554,

or Prof. Dr. Proessdorf at proessdorf@wias-berlin.de,

phone +49-30-20377-553.

------------------------------

From: Anshul Gupta <anshul@watson.ibm.com>

Date: Mon, 28 Oct 1996 15:52:52 -0500 (EST)

**Subject: Postdoctoral Fellowship at IBM T. J. Watson Research Center**

1997-1998 IBM POSTDOCTORAL FELLOWSHIP IN

MATHEMATICAL SCIENCES

The Mathematical Sciences Department of the IBM Thomas J. Watson

Research Center invites applications for its 1997-1998 Postdoctoral

Fellowship for research in mathematical and computer sciences. This

fellowship provides scientists of outstanding ability an opportunity

to advance their scholarship as resident department members at the

Research Center. The department provides an atmosphere in which basic

research is combined with experience on technical problems arising in

industry. The program of the Mathematical Sciences Department is

organized for research in pure and applied mathematics, and in

theoretical and exploratory computer science. On-going research in

the department includes work on sequential and parallel algorithms,

computational complexity, coding theory, cryptography, numerical

analysis, differential equations, mathematical optimization,

high-performance computation, logic design, computer algebra,

statistics, dynamical systems, continuous complexity, computational

linguistics, computer music, user interface technology, and

knowledge-based systems. Close interaction with permanent department

members is expected, but fellows will be free to pursue their own

research interests.

Each candidate must have a doctorate and not more than five years of

postdoctoral professional experience when the fellowship commences.

The fellowship has a period of one year, and may be extended by

another year on mutual agreement. The stipend will be generally in the

range of $67,000 to $70,000 per year, depending on experience. In

addition, there will be an allowance for moving expenses. The

Research Center is located in Westchester County, approximately forty

miles north of New York City.

To apply, please submit the following by January 10, 1997: resume,

including thesis summary; reprints of publications based on thesis and

other research; a research proposal; and visa status. Citizens of

countries defined as restricted by the U.S. Department of Commerce are

required to have a green card or an equivalent visa status. Please

indicate where you first learned about the fellowship. Applicants are

responsible for requesting that three or more letters of reference,

including one from the thesis advisor, arrive before January 10.

Direct all material to:

Committee on Postdoctoral Fellowships

Department of Mathematical Sciences

IBM Research Division

T. J. Watson Research Center

P. O. Box 218

Yorktown Heights, NY 10598

One fellowship will be awarded. Each applicant will be notified

individually as soon as the committee has reached a decision on the

application, no later than March 14, 1997.

------------------------------

From: SIAM <jean-bart@siam.org>

Date: Fri, 01 Nov 96 12:13:00 EST

**Subject: Contents, SIAM Review**

SIAM Review

December 1996, Volume 38, Number 4

CONTENTS

INTRODUCTORY

Changes Planned for SIAM Review

ARTICLES

The Decay of Axisymmetric Magnetic Fields: A Review of Cowling's

Theorem

Manuel Nunez

Computer-Assisted Proofs in Analysis and Programming in Logic: A Case

Study

Hans Koch, Alain Schenkel, and Peter Wittwer

Lagrangian Aspects of the Kirchhoff Elastic Rod

Joel Langer and David A. Singer

Algorithmic Derivation of Centre Conditions

J. M. Pearson, N. G. Lloyd, and C. J. Christopher

CASE STUDIES FROM INDUSTRY

Vertex Latitudes on Ellipsoid Geodesics

T. E. Wood

CLASSROOM NOTES

Some Boundary Problems with Even or Odd Solutions

William C. Waterhouse

Optimal Intercept Course of Vessels to a Nonzero Range

B. U. Nguyen and D. Nguyen

The Potential Value of Saaty's Eigenvector Scaling Method for

Short-Term Forecasting of Currency Exchange Rates

Marvin D. Troutt and Hussein H. Elsaid

Rectangular Parallelepipeds in Ellipsoids

J. Duncan, D. Khavinson, and H. Shapiro

Accelerated Convergence in Newton's Method

William F. Ford and James A. Pennline

Geometric Properties of Factorable Planar Systems of Differential

Equations

Hassan Sedaghat

Analytic Functions, Ideal Fluid Flow, and Bernoulli's Equation

J. G. Simmonds

PROBLEMS AND SOLUTIONS

BOOK REVIEWS

Oscillation Theory for Functional Differential Equations (L. H. Erbe,

Q. K. Kong, and B. G. Zhang), Ovide Arino

Stochastic Programming (Peter Kall and Stein W. Wallace), John R.

Birge

Conjugate Gradient Type Methods for Ill-Posed Problems (Martin Hanke),

Helmut Brakhage

Ocean Acoustic Tomography (W. Munk, P. Worcester, and C. Wunsch),

Michael D. Collins

Time-Varying Discrete Linear Systems (Aristide Halanay and Vlad

Ionescu), T. Constantinescu

Intermediate Classical Dynamics With Applications to Beam Physics (Leo

Michelotti), H. Scott Dumas

Navier-Stokes Equations and Nonlinear Functional Analysis (Roger

Temam), R. Farwig

Markov Decision Processes: Discrete Stochastic Dynamic Programming

(Martin L. Puterman), Eugene A. Feinberg

Davenport-Schinzel Sequences and Their Geometric Applications (Micha

Sharir and Pankaj K. Agarwal), Peter Hajnal

Lyapunov Matrix Equation in System Stability and Control (Zoran Gajic

and Muhammad Tahir Javed Qureshi), Lucas Jodar

CRC Standard Mathematical Tables and Formulae (Daniel Zwillinger),

Bruce Kellogg

Blow-up in Quasilinear Parabolic Equations (A. A. Samarskii, V. A.

Galaktionov, S. P. Kurdyumov, and A. P. Mikhailov), Howard Levine

Algebraic Riccati Equations (Peter Lancaster and Leiba Rodman),Volker

Mehrmann

Chaotic Behavior of Deterministic Dissipative Systems (Milos Marek and

Igor Schreiber), Edward Ott

Saddlepoint Approximations (Jens Ledet Jensen), N. Reid

Mathematical Methods for Geo-Electromagnetic Induction (J. T. Weaver),

Robert C. Rogers

Game Theory and Strategy (Philip D. Straffin), Donald G. Saari

Mathematics and Politics (Alan D. Taylor), Donald G. Saari

Fluid Dynamics for Physicists (T. E. Faber), P. G. Saffman

Geometric Scattering Theory (Richard B. Melrose), John Sylvester

Infinite Element Methods (Lung-an Ying), R. W. Thatcher

Polynomials and Polynomial Inequalities (P. Borwein and T. Erdelyi),

Walter Van Assche

Asymptotic Analysis: A Distributional Approach (R. Estrada and R. P.

Kanwal), Jet Wimp

The Transmission-Line Modeling Method TLM (Christos Christopolous), A.

H. Zemanian

Linear Programming: A Modern Integrated Analysis (Romesh Saigal), Yin

Zhang

SELECTED COLLECTIONS

CHRONICLE

AUTHOR INDEX

------------------------------

End of NA Digest

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