NA Digest Sunday, February 7, 1999 Volume 99 : Issue 06

Today's Editor:
Cleve Moler
The MathWorks, Inc.

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to

URL for the World Wide Web:

From: Henry Greenside <>
Date: Sun, 31 Jan 1999 15:30:25 -0500
Subject: Poisson/Helmholtz Equations in Cylindrical Geometry

Does anyone know of references concerning conjugate gradient (especially
good choices of a preconditioner) or multigrid methods for solving the
Poisson equation and the Helmholtz equation in three-dimensional
cylindrical domains?

The case that I am interested in is in which cylindrical coordinates are
used (r,theta,z) and in which the operators have been discretized with
2nd- or 4th-order accurate finite differences. The need to solve both
Poisson and Helmholtz equations arise when discretizing the Boussinesq
equations (Navier-Stokes plus heat diffusion) for three-dimensional
convection in an enclosed domain.



From: Jing Jiang <>
Date: Mon, 1 Feb 1999 16:25:08 -0600
Subject: Calculation of Zeros of a High Order Filter

Does anyone know how to
1. calculate all the zeros of a 128-th order linear phase
FIR filter (128th order polynomial);
2. reconstruct the filter polynomial coefficients by all its
roots (128 in total),
without initial guess for each of zeros? By the 128th
order linear phase FIR filter, its zeros are all in reciprocal
conjugate groups (each group has 4 zeros: ri, 1/ri*, ri*, 1/ri)
for a real coefficient filter.

When use the function POLY and ROOTS in MATLAB, I got the problem of
error blow up, and I thought it's due to the algorithm problem when
used for a large number of roots or a higher-order polynomial.

Jing Jiang


From: Alfred Inselberg <>
Date: Thu, 4 Feb 1999 19:07:38 +0200 (GMT+0200)
Subject: Interpolation on Line-Curves

A smooth curve may be defined as the envelope of its tangents
(line-curve). Does anyone know of references where the corresponding
"interpolation" problem is treated? I am interested in
methods/algorithms and theory for constructing the curve when
only a finite number of tangents are given (the point of tangency
is NOT known). Thanks,

Alfred Inselberg


From: Peter Zadrozny <>
Date: Thu, 4 Feb 1999 19:01:35 -0500
Subject: Analytical Algorithm for Determining Singularity

I'd appreciate a reference to an analytical algorithm (i.e., based on logical
operations or integer arithmetic) for determining singularity or
nonsingularity of an nxn matrix of non-negative integers. A few months ago I
found a trail of links in NA Digest to such a reference (I recall it led to
a "Chan's algorithm") but I have since lost that trail.

Peter Zadrozny

Bureau of Labor Statistics
2 Massachusetts Ave., NE, Room 4915
Washington, DC 20212
tel: (202)-606-7374
fax: -606-7426


From: Daniel Pierce <>
Date: Wed, 3 Feb 1999 10:43:15 -0800
Subject: Query About Internships

Dear NA Digest Readers,

I am often asked about internship possibilities at The Boeing Company
for students in the math and computational sciences. Boeing has
such internships, (you can find out more about them at but my intent here
is not to advertise this, but rather to find out what other companies
also provide such internships. If your company has an internship
program, where these types of students could participate, I would
appreciate finding out about it. If you would send me an email
with information, a URL or even just a "yes we do" that would be
very helpful.

Dan'l Pierce (
Mathematics and Engineering Analysis Group
The Boeing Company


From: Nick Trefethen <>
Date: Sun, 7 Feb 1999 10:41:54 GMT
Subject: Pseudospectra Tutorial

I have just finished a survey "Computation of Pseudospectra" for
Acta Numerica, written in a tutorial style around an extended
example of a non-normal differential operator. The article
contains a list of applications, many references, and a Matlab code.
Numerical analysts and graduate students who wish to read about
pseudospectra may find this a good place to start. The paper is
posted at

Nick Trefethen, Oxford University


From: Jordi Castro <>
Date: Tue, 2 Feb 1999 12:55:16 +0100 (MET)
Subject: New Address for Jordi Castro

Recently I moved to Universitat Politecnica de Catalunya at Barcelona (Spain).
My new address is:

Jordi Castro
Statistics and Operations Research Dept.
Universitat Politecnica de Catalunya
Pau Gargallo 5
08071 Barcelona (Spain)

Phone: +34-93-4015867
Fax: +34-93-4015855
E-mail: (under construction)

Jordi Castro


From: Reinhard Mennicken <>
Date: Tue, 2 Feb 1999 17:47:17 +0200
Subject: Nominations for Maxwell Prize

Call for Nominatons
CICIAM Maxwell Prize

The CICIAM Maxwell Prize is funded by the Institute of Mathematics and its
Applications (IMA), has been established to provide international recognition
to a mathematician who has demonatrated originality in applied mathematics.

The Maxwell Prize recognizes a specific body of work of demonstrable
originality. There is no restriction of age. The recepient can be a senior,
middle, or junior person. The focus is on the specific body of work and
its originality.

The first Maxwell prize will be awarded at CICIAM 99 in Edinburgh.

NOMINATIONS should state the nature of the original contribution and its
subsequent impact on the development of applied mathematics or its
applications. It should also include a recent Curriculum Vitae and should
be sent to

Prof. Dr. Reinhard Mennicken
NWF I Mathematik
University of Regensburg
D-93040 Regensburg

FAX +49 (0) 941 943 4005


From: Rolf Jeltsch <>
Date: Sun, 7 Feb 1999 10:56:50 +0000 (GMT)
Subject: Poster Competition in Mathematics

UNESCO has defined the year 2000 as the year of mathematics.
There will be many activies under the heading

W M Y 2000

World Mathematical Year 2000. One of them is to rise public awareness by
having posters in public transport systems, e.g. Metro in Paris.

To make these Posters we need your ideas. The European Mathematical
Society, EMS, has opened a competition for this design. Since I am
convinced that also applied mathematicians can and should contribute I
submit this competition here.


Posters in subways,
math displays.
the EMS committee of WMY:
let a competition fly,
don't be shy
have a try,
For the future of Mathematics!

As one of the events during the World Mathematical Year 2000, the European
Mathematical Society together with local committees in several countries
wishes to encourage the idea of posters with a mathematical theme to be
displayed in subways, and other public places.

These posters should catch the eye, and be representative of mathematics
and its uses.

The EMS is convinced that suitable posters will contribute to raising the
public awareness of mathematics.

The EMS committee of the WMY 2000 invites mathematicians to submit proposals
for posters, in the form of a sketch of the graphics and a suggestion for a
short text. There will be prizes for the three best proposals, respectively
200, 150 and 100 ECU, and the name of the proposer will appear on all those
posters which are eventually used.

Proposals should be sent before May 1, 1999, to the chairman of the EMS
committee for the WMY 2000: Professor Vagn Lundsgaard Hansen,
Department of Mathematics, Technical University of Denmark,
Building 303, DK-2800 Lyngby, Denmark.

For more information: Vagn Lundsgaard Hansen <>


From: Joseph Traub <>
Date: Mon, 1 Feb 1999 11:41:17 -0500 (EST)
Subject: New Book, Complexity and Information


Columbia University and Santa Fe Institute

Fordham University and Columbia University


Simultaneous publication in hard and soft cover as part of the
series Lezioni Lincee, Accademia Nazionale dei Lincei

The twin themes of computational complexity and information pervade
this book. The authors begin with an introduction to the computational
complexity of continuous mathematical models, that is, information-based
complexity. This is used to illustrate a variety of topics, including
breaking the curse of dimensionality, complexity of path integration,
solvability of ill-posed problems, the value of information in computation,
assigning values to mathematical hypotheses, and new, improved methods for
mathematical finance.

The style is informal, and the goals are exposition, insight and motivation.
A comprehensive bibliography is provided, to which readers are referred for
precise statements of results and their proofs. As the first introductory
book on the subject it will be invaluable to the many students and
researchers whose disciplines are influenced by the computational complexity
of continuous problems.


Part One: Fundamentals
1 Introduction
2 Information-Based Complexity
3 Breaking the Curse of Dimensionality

Part Two: Some Interesting Topics
4 Very High-Dimensional Integration and Mathematical Finance
5 Complexity of Path Integration
6 Are Ill-Posed Problems Solvable?
7 Complexity of Nonlinear Problems
8 What Model of Computation Should Be Used by Scientists?
9 Do Impossibility Theorems from Formal Models Limit
Scientific Knowledge?
10 Complexity of Linear Prgramming
11 Complexity of Verification
12 Complexity of Implementation Testing
13 Noisy Information
14 Value of Information in Computation
15 Assigning Values to Mathematical Hypotheses
16 Open Problems
17 A Brief History of Information-Based Complexity

Part three: References
18 A Guide to the Literature of IBC

Author index
Subject index

Hardback 0-521-48005-1 US$54.95 UK L35.00
Paperback 0-521-48506-1 US$19.95 UK L12.95

This book can be ordered online:

* It can be conveniently ordered from Cambridge University Press via
* It can also be ordered through or

It can, of course, be obtained through your bookstore.


From: Thanh-Ha LeThi <>
Date: Wed, 3 Feb 1999 15:05:00 +0100
Subject: New Book, Multibody System Simulation

Reinhold von Schwerin "MultiBody System SIMulation - Numerical Methods,
Algorithms and Software"
Lecture Notes in Computational Science and Engineering Vol. 7,
Springer-Verlag, due May/June 1999
ISBN 3-540-65662-6 approx. XV, 280 pp DM 129,00

"The book presents innovative methods for the solution of multibody
descriptor models. It emphasizes the interdependence of modeling and
numerical solution of the arising system of differential-algebraic equations
(DAE). Here, it is shown that modifications of non-stiff ODE-solvers are
very effective for a large class of multibody systems. In particular,
implicit methods are found to dovetail optimally with the linearly implicit
structure of the model equations, allowing an inverse dynamics approach for
their solution. Furthermore, the book stresses the importance of software
development in scientific computing and thus presents a complete example of
an interdisciplinary problem solution for an important field of application
from technical mechanics."

For further information, please contact:

Dr. Martin Peters Phone: *49-6221-487 185
Senior Mathematics Editor FAX: *49-6221-487 355
Tiergartenstrasse 17 E-mail:
D-69121 Heidelberg, Germany

Visit our Web site at


From: Tamas Terlaky <>
Date: Sun, 31 Jan 1999 20:01:52 +0100
Subject: New Journal, Optimization and Engineering

Call for papers for the new journal

The first issue is due to be published by
Kluwer Academic Publishers in early 2000 in early 2000

Optimization and Engineering is a multidisciplinary journal. Its primary
goal is to promote the application of optimization methods in the general
area of engineering sciences. This includes facilitating the development
of advanced optimization methods for direct or indirect use in engineering
sciences. The journal provides a forum in which engineering scientists
obtain information about recent advances of optimization sciences, and
researchers in mathematical optimization learn about the needs of
engineering sciences and successful applications of optimization methods.
Its aim is to close the gap between optimization theory and the practice
of engineering.

All optimization methods of relevance to applications in engineering sciences
will be considered: deterministic and stochastic, continuous, mixed integer
and discrete, when they are relevant for applications in engineering sciences.
The journal also strives to publish successful applications of optimization
in various engineering areas.

The scope of the journal includes the following:

All mathematical methods and algorithms of mathematical optimization.
Numerical and implementation issues, optimization software, bench-marking.

Linear and convex optimization, general nonlinear and nonlinear mixed-
integer optimization, combinatorial optimization, equilibrium, multilevel
and multi-objective optimization, stochastic optimization.

Electrical engineering, VLSI design, robotics, mechanical and
structural engineering, geophysical engineering, civil engineering,
industrial engineering, chemical and process engineering,
aerospace engineering, water management, environmental and
bio-engineering, transportation and communication sciences.

Papers submitted for publication in OPTIMIZATION AND ENGINEERING
should be sent to the editor in chief

Tamas Terlaky
Dept SSOR, Facylty ITS/TWI
Delft University of Technology
P.O. Box 5031, 2600 GA Delft, The Netherlands
Tel.: +31 15 2782547 Fax: +31 15 2787255
URL address:

Electronic submission of papers is strongly encouraged.

For more information look at:


From: Peter Witt <>
Date: Mon, 1 Feb 1999 09:42:40 +1100
Subject: Conference on CFD Modelling

Second International Conference on Computational Fluid
Dynamics in Minerals and Process Industries
6-8 December 1999
Melbourne, Australia


The Second International conference on Computational Fluid Dynamics in
the Minerals and Process Industries will be held in Melbourne Australia
from 6-8 December 1999.

The conference objectives is to provide a forum to :

- explore the breadth of application and effectiveness of CFD modelling
in the minerals processing, metal product, power generation and chemical
process industries.

- identify linmitations in the existing CFD capabilities and validation

- identify and report on emerging CFD capabilities and applications.

Papers providing comparison with experimental data are particularly encouraged.


The scope of the conference includes CFD applications across the whole
range of Minerals Processing operations, Pyro- and Hydrometallurgical

processing and Process Industries, including flash smelting, particulate
flows, bath smelting, cyclones, mixing tanks, coal fired furnaces, casting,
magnetohydrodynamics, FCC processes, food processing and slurry flows.


Further details of the conference are included in the
conference web page:

For Further information, contact:
Dr Phil Schwarz
CSIRO Minerals, Box 312 Clayton South, Vic.3169,
Tel: +613 9545 8500
Fax: +613 9562 8919


From: A. Arnold <arnold@math.TU-Berlin.DE>
Date: Mon, 01 Feb 1999 12:49:39 +0100
Subject: Conference on Kinetic and Hyperbolic Problems

Joint TMR Conference on Kinetic and Hyperbolic Problems
S. Margherita Ligure, Italy, April 12-16

The two TMR networks "Hyperbolic Conservation Laws" and "Asymptotic Methods
in Kinetic Theory" will hold the "Joint TMR Conference on Kinetic and
Hyperbolic Problems" in the resort town S. Margherita on the Ligurian
Coast. The meeting will take place in the 4-star Hotel Regina Elena.

Scientific topics:
* modelling, analysis and numerics of kinetic equations
* fluid limits of kinetic models
* dispersion- and moment lemmata, homogenization
* transport models for semiconductors and plasmas
* Entropy solutions to hyperbolic conservation laws
* Shock waves
* Stability of nonlinear waves
* Relaxation problems
* Numerical methods

Scientific committee: A. Arnold, L. Desvillettes, P.
Marcati, P. Markowich, B. Perthame, G. Toscani, A. Tzavaras.

Conference registration:
Please register for the conference by email to
directly by the form in the WEB page at URL


From: HPCFIN <>
Date: Mon, 1 Feb 1999 13:19:36 +0100 (NFT)
Subject: High-Performance Computing for Financial Planning

Second Announcement and Call for Papers
HPCFIN Conference
Ischia, Italy - April 11-13, 1999

The Conference on High Performance Computing for Financial Planning
aims at bringing together market leaders from the financial services
and computing industries with leading scholars to review recent de-
velopments in the interface of financial planning and high-performance
computing. Equal emphasis will be placed on:

- meaningful and practical models that address real needs of the user
community that are currently made feasible with the use of high-
performance computing;

- software and networking issues that make the technology easily ac-
cessible by the users.

The Conference is the outgrowth of a 3-year project funded by the Di-
rectorade General III - Industry of the European Commission under the
INCO Program. Project participants will present the results of this project.

Papers are also solicited from the international community of finan-
cial institutions and academia.


- Thierry Van der Pyl, European Commission DG III - Industry
- Richard Olsen, Olsen & Associates, Zurich, CH


- Management Science and Operations Research for Planning Financial
Stavros Zenios, University of Cyprus, Cyprus

- The Stochastic Programming Approach to Asset-Liability Management
William Ziemba, University of British Columbia, Canada


- Almerico Murli, University of Naples ``Federico II'' and
Director of Center for Research on Parallel Computing and
Supercomputers (CPS-CNR), Italy

- Stavros Zenios, University of Cyprus, Cyprus



From: Olvi Mangasarian <>
Date: Mon, 01 Feb 1999 09:47:39 -0600
Subject: Conference on Knowledge Discovery and Data Mining

Call for Papers
KDD-99: The ACM SIGKDD Fifth International Conference
on Knowledge Discovery and Data Mining
August 15-18, 1999, San Diego, CA, USA

Sponsored by:
Association for Computing Machinery (ACM) - SIGKDD
Co-sponsored by:

The continuing rapid growth of on-line data and the widespread use of
databases necessitate the development of techniques for extracting
useful knowledge and for facilitating database access. The challenge
of extracting knowledge from data is of common interest to several
fields, including statistics, databases, pattern recognition, machine
learning, data visualization, optimization, and high-performance
computing. KDD-99 will focus on techniques, applications, and
experiences, bringing together researchers and practitioners.

Starting this year, the KDD series will represent the annual
conferences of the newly formed SIGKDD--the ACM Special Interest Group
on Knowledge Discovery and Data Mining.

Web site:

Topics of interest include, but are not limited to:

KDD Techniques Human Interaction and the KDD Process

New KDD algorithms Data and knowledge visualization
Mining the Web Evaluating knowledge and potential discoveries
Text/multimedia Interactive exploration
Data cleaning/noisy data Visualizing large, high-dimensional data
Incremental algorithms
High-dimensional data
Background knowledge

Implementation and Applications Mining Enterprise Databases

Implementation & use of KDD Scalable algorithms
Vertical applications Unification of mining with querying
Case studies: success/failure Database architectures for KDD
Benchmarks Database primitives for KDD
Integration: mining/warehousing/OLAP


From: K. Veselic <>
Date: Mon, 1 Feb 1999 18:58:51 +0100 (MET)
Subject: Workshop on Accurate Solution of Eigenvalue Problems

We are proud to announce the

III International Workshop on Accurate Solution of Eigenvalue Problems

to be held from July 3-6, 2000 in Hagen, Germany


J. Barlow, Penn State
I. Slapnicar, Split
K. Veselic, Hagen (managing)

Like its two predecessors the III Workshop will be a highly specialized
meeting dedicated to the problem of 'extracting an eigensolution
(or sv solution) with about the same accuracy as the input data warrant'.
The workshop format will be as before: fewer lectures, more time for any
lecture, and special times for discussion and work.

The list of tentative speakers includes:

Beresford Parlett, Berkeley
James Demmel, Berkeley
Ilse Ipsen, NCSU
Zlatko Drmac, Zagreb
Louis Komzsik, McNeal-Schwendler Co.
Axel Ruhe, Chalmers Goteborg
Chris Beattie, Virginia Tech
Nick Higham, Manchester

For further information contact

Kresimir Veselic
Fernuniversitaet Hagen
LG Mathematische Physik
P.O. Box 940
D-58084 Hagen

phone: (2331)9872721
www page:

Further information on the previous Workshops can be found
on the web pages of Jesse Barlow (Penn State) and Ivan Slapnicar
(Split). Also LAA will publish a special volume with materials
connected with the II Workshop at PennState.


From: E. F. Toro <>
Date: Mon, 01 Feb 1999 19:16:23 +0000
Subject: Conference in Honor of S. K. Godunov

Manchester, October 18th to 22nd, 1999

An international conference to honour
Professor S. K. Godunov, the year
of his 70th birthday

You are invited to participate and contribute in
the Manchester Conference on "Godunov Methods:
Theory and Applications", to take place in October,
18th to 22nd, 1999, Manchester, United Kingdom.


1. Professor S. K. Godunov Novosibirsk, Russia
2. Professor P. Collela Berkeley, USA
3. Professor P. Garcia-Navarro Zaragoza, Spain
4. Dr B. Koren Amsterdam, The Netherlands
5. Professor D. Kroner Freiburg, Germany
6. Professor S. Osher California, USA
7. Professor R. Saurel Provence, France
8. Dr P. K. Sweby Reading, UK
9. Professor E. F. Toro Manchester, UK
10. Professor B. Wendroff Los Alamos, USA


1. Dr. D. Drikakis, UMIST, Manchester, UK
2. Professor M. Pandolfi, Torino, Italy
3. Professor E. Romensky, Novosibirsk, Russia
4. Dr. T. Saito, Tohoku Uinversity, Sendai, Japan
5. Professor E. F. Toro, MMU, Manchester, UK
6. Dr Helen Yee, NASA Ames, USA



Prospective contributers are invited to submit an
abstract of no more than one page to:

or to

Professor E. F. Toro
Department of Computing and Mathematics
Manchester Metropolitan University
Chester Street
Manchester, UK


or to be obtained by emailing:, or


From: David Keyes <>
Date: Thu, 4 Feb 1999 20:33:13 -0500 (EST)
Subject: Workshop in Honor of George K. Lea

A Workshop on the Evolution and Future
of Computational Engineering
In Honor of the Retirement of
George K. Lea
from the National Science Foundation
June 17-18, 1999
Washington, DC

A workshop in honor of the recent retirement of George K. Lea from the
National Science Foundation will be held at NSF headquarters in Arlington,
VA (metropolitan Washington) on June 17 and 18, 1999.

Computational Science & Engineering (CS&E) is now widely accepted as a
third modality for scientific investigation and engineering design, along
with theory and experiment. It is easy to forget that it was difficult to
find institutionalized support for research in CS&E until relatively
recently. George Lea's program in Computational Engineering at the
National Science Foundation has long been an exception, and upon his
retirement from the NSF it is both appropriate and timely to take
retrospective and prospective looks at the landscape of CS&E. George has
not only helped to define and promote the interdisciplinary content of
CS&E; he has also galvanized many interdisciplinary and
inter-institutional collaborations through his introductions of CS&E
researchers to each other at national conferences and at technical
gatherings of his own PIs.

Current and former PIs, colleagues, and friends of George and all who are
interested in tracing the past, present, and future of Computational
Engineering are therefore invited to a full day of technical presentations
and two surrounding evenings of social events at the workshop.

Details of the workshop are available at


From: Fred Hickernell <>
Date: Wed, 03 Feb 1999 16:17:12 +0800
Subject: Workshop on the Complexity of Multivariate Problems

In last week's announcement of the Worskhop on the Complexity of Multivariate
Problems the name of one of the Plenary Speakers,

Harald Niederreiter,

was inadvertently omitted. The organizers apologize for this mistake. The full
list of Plenary Speakers for the Workshop is as follows:

Kai-Tai Fang, Hong Kong Baptist University
Stefan Heinrich, University of Kaiserslautern
Fred Hickernell, Hong Kong Baptist University
Harald Niederreiter, Austrian Academy of Sciences
Erich Novak, Universitat Erlangen-Nurnberg
Art Owen, Stanford University
Ian Sloan, University of New South Wales
Shu Tezuka, IBM Corporation, Tokyo
Ren-Hong Wang, Dalian University of Technology
Grzegorz Wasilkowski, University of Kentucky
Henryk Wozniakowski, Columbia University & University of Warsaw


From: Greg Fasshauer <>
Date: Wed, 3 Feb 1999 15:03:02 -0600 (EST)
Subject: Midwest Numerical Analysis Day

Saturday, April 24, 1999
8:00 a.m. - 5:30 p.m.
Stuart Building
10 West 31st Street
Illinois Institute of Technology
Chicago, Illinois

Scope of the Meeting:

The Midwest Numerical Analysis Day is an annual one-day conference
on numerical analysis and computational mathematics. This year, the
host will be the Department of Applied Mathematics, Illinois
Institute of Technology. The main purpose of this meeting is to
give those working in the fields of numerical analysis and
computational mathematics the opportunity to discuss their work and
to meet with their colleagues. Graduate students are welcome.

Invited Speakers:

Ted Belytschko (Northwestern University)
- Element-Free Galerkin (EFG) Methods

Larry Shampine (Southern Methodist University)
- Boundary Value Problems for ODEs


Greg Fasshauer and George Byrne
Department of Applied Mathematics
Illinois Institute of Technology
Chicago, IL 60616



Greg Fasshauer: or (312) 567-3149
George Byrne:
FAX: (312) 567-5067

If you are interested in giving a contributed talk in the form of an
oral presentation or in a poster session, submit a title and short
abstract (indicating your preference of form) by April 2, 1999, either
via the signup form on our web site, or to one of the organizers
listed above.

No registration is required to simply attend.


From: Yuan Ya-xiang <>
Date: Thu, 4 Feb 1999 09:07:13 +0000
Subject: Conference on Scientific/Enginnering Computing

'99 International Conference on
Scientific and Engineering Computing for Young Chinese Scientists
(Beijing, July 1-4, 1999)

The '99 International Conference on Scientific and Engineering Computing for
Young Chinese Scientists will be held in Beijing, China, July 1-4, 1999. The aim
of the conference is to gather young Chinese experts in the related fields of
scientific and engineering computing to report recent advances and to discuss
future developments on these fields. This conference is the second one of this
kind, the first one (held in 1993) was initiated by late professor Kang Feng.

The conference is organized by the Chinese Academy of Sciences, and it is
sponsored by the Chinese Academy of Sciences, the National Natural Foundation
of China, the Institute of Computational Mathematics and Scientific/Engineering
Computing, and the State Key Laboratory of Scientific and Engineering Computing.

Invited speakers will include (tentative list):
Raymond Chan (Chinese Univ. Hong Kong)
Zhi-ming Chen (Chinese Academy of Sciences)
Qiang Du (UST. Hong Kong)
Weinan E (New York Univ. USA)
Thomas Hou (CalTech, USA)
Shi Jin (GaTech. USA)
Yu-ying Li (Cornell, USA)
Chi-wang Shu (Brown Univ. USA)
Jinchao Xu (Penn. State. Univ. USA)
Yuesheng Xu (Dodak State Univ. USA)
Shao-liang Zhang (Tsukuba Univ. Japan)
Yin Zhang (Rice Univ. USA)

The Scientific Committee of the conference are:
Chairman: Zhong-ci Shi (Chinese Academy of Sciences)
Members: Qun Lin (Chinese Academy of Sciences)
Yu-ling Zhou (BICCP, China)
Long-an Ying (Peking Univ. China)
Hou-de Han (Tsinghua Univ. China)
Dou-liu Wang (Chinese Academy of Sciences)
Tony Chan (UCLA, USA)
Yinyu Ye (Univ. Iowa, USA)
Zhaojun Bai (Univ. Kentucky, USA)
Jie Sheng (Penn State Uni. USA)
Jun Zou (Chinese Univ. Hong Kong)
Mo Mu (UST, Hong Kong)
Fuji Ren (Hiroshima City Univ. Japan)
Shuzhong Zhang (Univ. Rotterdam, Holland)

The organizing committee of the conference are:
Chairman: Ya-xiang Yuan (Chinese Academy of Sciences)
Members: De-hou Yu (Chinese Academy of Sciences)
Lin-bo Zhang (Chinese Academy of Sciences)
Zhong-zhi Bai (Chinese Academy of Sciences)
Ping-Wei Zhang (Peking Univ. China)
Da-yong Cai (Tsinghua Univ. China)
Rong-jun Shen (BICCP, China)
Tao Tang (Baptist Univ. Hong Kong)
Yuan-wei Qi (UST, Hong Kong)
Shangyou Zhang (Univ Delware, USA)
Ming Gu (UCLA, USA)
Lei Li (Yamaguchi Univ. Japan)
Wenbin Liu (Univ of Kent, UK)

Young Chinese scholars (not over 45), working in both China and overseas are
warmly invited to attend this conference. Those who are interested in
contributing a talk at the conference, please send an one-page abstract,
including the title of the paper, name(s) and full address(es) of the author(s),
in LaTeX form, to Professor Zhong-Zhi Bai ( by email before
April 15. Notifications to all contributors will be given by May 1, 1999.

Conference Web site:


From: Gavin J Pringle <>
Date: Fri, 5 Feb 1999 14:31:03 +0000 (GMT)
Subject: Seminar on Parallel Sparse Matrix Solvers

HPCI Seminar: Parallel Sparse Matrix Solvers

Monday 15 March 1999,
Newhaven Theatre,
The University of Edinburgh Conference and Training Centre,
11 South College Street,
Edinburgh EH8 9AA.

As part of the High Performance Computing Initiative, HPCI, EPCC is
organising a one-day seminar entitled `Parallel Sparse Matrix Solvers'.
This meeting will take place in Edinburgh on Monday, 15th March, 1999.

This seminar is aimed at researchers who are interested in using
parallel sparse matrix solvers within their codes. The primary focus
will be on recent developments in parallel libraries and will also
include some user experience of third party solvers under the HPCI

The program will include presentations from:

o Anne Trefethen (NAG) will present the sparse iterative
solvers available in the PINEAPL library.

o Iain Duff (RAL and CERFACS) will be talking about the PARASOL
project and the work done on direct methods.

o Dan Sorensen (Rice University) will describe the parallel
eigenvalue routines available in the ARPACK library.

o Michael Bowers (EPCC) will talk about experiences of
parallelising academic and industrial finite element
codes at EPCC using third-party libraries.

More information about the talks, speakers and seminar arrangements can be
found at the seminar web page.

Although attendance to EPCC's HPCI seminars is free, people wishing to
attend are requested to register beforehand. You should register
electronically via the form at:

All future details about this seminar will be sent to you by email.

The organising committee also wishes to acknowledge the support of
Keltec Progress Ltd, in addition to HPCI.


From: Roland Vilsmeier <>
Date: Fri, 5 Feb 1999 19:55:58 +0100 (MET)
Subject: Symposium on Finite Volumes for Complex Applications

We wish to announce the 2nd international Symposium on

- Problems and Perspectives -

to be held July 19th-23rd 1999 at the University of Duisburg, Germany.

The FVCA-Symposium is intended to provide a discoussion forum for
mathematicians, physicists concerned with or interested in Finite Volume
Methods for any application.

According to the title, a critical look at the subject is intended.
NEW IDEAS should be presented, even if they did not yet show full
success. The demonstration of LIMITS or ERRORS of methods is
explicitly welcome.

DEADLINE for abstracts: March, 15. 1999.

PROCEEDINGS will be printed and made available.

Topics of main interest:
* Limits of methods and errors
* Global error analysis
* Discontinuous solutions and fitting
* Multidimensional and directional schemes
* Systems with source terms
* Complex geometries and adaptivity
* Complexity, efficiency and large computations
* New fields of application

Extended Keynote-lectures will be given by:
* F. Coquel, Paris, France
* G. Degrez, von Karman Institute, St-Genesius-Rode, Belgium
* R. Klein, Potsdam Institut f. Klimafolgenforschung, Germany
* R. Lazarov, Lawrence Livermore National Laboratory, USA
* J. M. Ghidaglia, ENS de Cachan, France
* S. Noelle, University of Bonn, Germany
* J. A. Sethian, Univ. California, Berkeley, USA (to be confirmed)


Please refer to the web-pages for further details and do not hesitate to
contact the organizers for any questions.

Hoping to see you summer in Duisburg.

Fayssal Benkhaldoun, Dieter H"anel and Roland Vilsmeier

phone: +49 203 379 2500
fax: +49 203 379 3087


From: Veronique Bruyere <>
Date: Wed, 3 Feb 1999 13:32:05 +0100 (MET)
Subject: Faculty Position at Universite de Mons-Hainaut, Belgium

Institut de Mathematique et d'Informatique

The Institute of Mathematics and Computer Science invites applications
for the following position to begin in the academic year 1999-2000
(starting date is September 1999):

Charge de Cours (professor position) in the general area of

A higher permanent appointment might be possible for an exceptionally
well-qualified applicant.

Candidates for this position must have a Ph.D. in Mathematics and are
expected to have strong records in research and must provide evidence of
ability to teach in French effectively.

Teaching duties (160 h per year) consist in basic lectures on Analysis
for students in mathematics, physics and computer science, plus lectures
on numerical analysis.

Details are on the website

Outstanding young candidates are encouraged to apply. APPLICANTS should
send a curriculum vitae together with a resume containing a research
plan and copy of their publications.

APPLICATIONS MUST BE SUBMITTED BY MARCH 1,1999 to the following address:
Recteur de l'Universite de Mons-Hainaut, 20 Place du Parc, B-7000 Mons

Mons is a small attractive town, located on the highway between Brussels
and Paris; TGV connects Mons to Paris (2 times every day in 1h25). More
information on the Institute and the town of Mons from the website:


Date: Wed, 03 Feb 99 15:46:56 +0200
Subject: Postdoctoral Position at the Weizmann Institute

The Gauss Center for Scientific Computation at the Weizmann Institute
of Science, Rehovot, Israel, is seeking a qualified candidate for a
Post-Doctoral position, to participate in the Center's development of
advanced multiscale computational methods. Possible directions include:

1. Multigrid methods, especially in fluid dynamics
2. Data assimilation in atmospheric simulations
3. Ab-initio quantum chemistry (many-eigenfunction problems)
4. Wave phenomena
5. Optimal feedback control
6. Computational physics: multiscale Monte-Carlo and Dirac solvers
7. Fast medical-imaging and radar reconstruction
8. Molecular dynamics
9. Multiscale image processing

Applicants should have completed their Ph.D. studies between
March, 1997, and the appointment start date. They should have a
strong background and programming experience in scientific computing,
preferably in one of the above areas and/or in multiscale computational

The post-doc appointment is for a period of one or two years and may
be extended for a third year. It carries a monthly stipend and provides
an annual fund for scientific travel.

Applications and request for further information should be sent to
the Gauss Center Secretary:

Mrs. Carol Weintraub
Dept. of Applied Mathematics & Computer Science
The Weizmann Institute of Science
Rehovot 76100, Israel
Fax: +972-8-9342945
Phone: +972-8-9342545

The application should include a CV, a description of previous
experience in scientific computing and the particular areas of
interest, and names of two referees, who should separately send
their letters of recommendation to the above address.

More information on the research at the Gauss Center can be found
at our web site:


From: Juergen Garloff <>
Date: Wed, 03 Feb 1999 12:33:29 +0100
Subject: Research Position at the University of Applied Sciences/FH Konstanz

Research Position in the Project

Solution of Systems of Algebraic Equations

at the Institute for Applied Research of the University of Applied Sciences/
FH Konstanz, Germany

Aim of the project funded by the German Ministry for Education, Science,
Research, and Technology (BMBF) is the development of new algorithms for
solving systems of allgebraic equations. We are seeking a candidate with
programming skills in C/C++; a background in numerical analysis would be
beneficial. A master or diploma in mathematics, computer science or related
fields is required. The position is termed till Dec. 31, 1999 but is
expected to be extended.
The salary is regulated by the German BAT contract: IIa BAT or less
depending on qualifications.
The region has a rich cultural inheritance. The Lake Constance offers
outstanding facilities for all kinds of water sports. The Alps are very close.
Applications will be accepted until the position is filled.
Interested applicants should send a resume and a cover letter as soon as
possible to

Prof. Dr. Juergen Garloff
Fachhochschule Konstanz
FB Informatik
Postfach 100543
D-78405 Konstanz
Tel.: +49-7531-206-597 or -627
Fax: +49-7531-206-559


From: Stephen Wright <>
Date: Wed, 3 Feb 1999 13:46:52 -0600
Subject: Postdoctoral Positions at Argonne

Postdoctoral Positions: Optimization / metaNEOS Project

We invite applications for postdoctoral research positions in the
metaNEOS project. This project, which involves researchers at Argonne
National Laboratory, the University of Chicago, Columbia University,
Northwestern University, and the University of Wisconsin, will explore
the use of metacomputing platforms in solving large optimization
problems. The successful candidates will work in fundamental algorithm
analysis and development and/or construction of optimization software
tools, including tools targeted to the metacomputing
environment. Further information on the metaNEOS project can be
obtained from the project Web site at

Candidates should have a Ph.D. in optimization, numerical analysis,
applied mathematics, or computer science. Knowledge of computational
optimization algorithms, familiarity with software tool development
for scientific computing, and experience with parallel computation are
all highly desirable. A broad background in computer science is also a
plus. Good communication skills and a willingness to work in a
collaborative environment are essential.

The successful candidates will be appointed at Northwestern
University, but will spend the majority of their time at Argonne. The
Mathematics and Computer Science Division at Argonne has an
outstanding computational environment that includes the facilities of
the newly established Center for Computational Science and
Technology. At the core of the center are scalable parallel computers,
a distributed supercomputing laboratory, and a virtual environments

Argonne is located in the southwestern Chicago suburbs, offering the
advantages of affordable housing, good schools, and easy access to the
cultural attractions of the city.

Resumes should be addressed to

Jan Griffin
Mathematics and Computer Science Division
Argonne National Laboratory
9700 S. Cass Avenue
Argonne, IL 60439

and must include a resume and the names and addresses of three
references. For electronic submission of applications, please e-mail
to The positions are available immediately;
applications will be accepted until they are filled. For further
inquiries, contact Jorge More' ( or Steve Wright

Northwestern University is an affirmative action/equal opportunity
employer. Hiring is contingent upon eligibility to work in the United


From: T. N. Phillips <>
Date: Thu, 04 Feb 1999 14:06:27 +0000
Subject: Research Position at University of Wales, Aberystwyth


The Department of Mathematics has been awarded funding by the
EPSRC Chemical Engineering Programme for a project concerned with
the computation of non-Newtonian flows on heterogeneous
networks of processors. The project will start as soon as possible.
Applicants should hold, or expect to obtain in the near future, a PhD
in applied mathematics or engineering. Familiarity with the spectral
element method and/or parallel computing hardware and message passing
software would be an advantage.

Applications should be made by sending a curriculum vitae and names
of two academic referees to Dr. T.N. Phillips, Department
of Mathematics, University of Wales, Aberystwyth SY23 3BZ.
Informal enquiries are welcomed either by phone
(01970 622769) or by email (


From: Mohsen Maesumi <>
Date: Thu, 4 Feb 1999 14:20:59 -0600
Subject: Dean Position at Lamar University

Lamar University
A Member of the Texas State University System
Dean, College of Engineering

Applications and nominations are invited for the position of Dean,
College of Engineering at Lamar University. The Dean is the chief academic
officer of the College and reports directly to the Executive Vice President
for Academic Affairs. The College of Engineering, one of six colleges
on campus, offers the Bachelor's, Master's, and Doctorate of Engineering
degrees through the departments of Chemical, Civil, Electrical, Industrial,
and Mechanical Engineering, and Bachelor's and Master's degrees in the
departments of Computer Science and Mathematics. Also offered are Master's
degrees in Environmental Engineering and Environmental Studies. The Texas
Hazardous Waste Research Center, with annual funding in excess of $3 million,
is closely allied with the College. All five undergraduate engineering
programs in the College hold ABET accreditation. The College's students
maintain the highest pass rate in Texas on the Fundamentals of Engineering

The University: Lamar University, founded in 1923, became the newest member
of The Texas State University System in 1995. With over 300 faculty and an
enrollment exceeding 8,000 students, Lamar offers comprehensive degree
programs in a wide array of disciplines. The university is located in
Beaumont, Texas, a city of 115,000 people serving an MSA of over 300,000.
On the banks of the Neches River in Southeast Texas, Beaumont is only 85
miles from Houston and 35 miles from the Gulf of Mexico beaches. Leisure
activities abound in the Big Thicket National Preserve and the lake areas
of East Texas. A wide variety of cultural events are provided through a
regional symphony orchestra, art museum, historic houses, opera, ballet
and theater companies, together with Lamar's own offerings. A year-round
temperate climate enhances outdoor recreational opportunities.

Responsibilities: The Dean will provide overall leadership for growth of the
College. Areas of emphasis include: undergraduate recruitment and retention,
enhancement of the doctoral program, and increasing resources through grants,
private giving, and collaboration with business/industry. As a member of the
Academic Council, the Dean will participate in the development of academic
policy for the University.

Qualifications: Required qualifications include: an earned doctorate in a
discipline represented in the College; a record of personal achievement
commensurate with appointment to the rank of professor with tenure;
administrative experience; outstanding leadership and interpersonal skills;
the ability to communicate the College's values and goals to internal
and external constituencies. Desirable qualifications include experience
with ABET accreditation, industry, and co-op programs.

Compensation: Competitive, including excellent fringe benefits.

Applications: The position will be available September 1, 1999. Screening will
begin March 5, 1999; the search will remain open until the position is filled.
A complete application will include a letter of interest, curriculum vitae,
and the names, addresses, and telephone numbers of at least four references.
Send nominations and applications to:

Dr. Victor Zaloom, Search Committee Chair
c/o Office of Human Resources
Lamar University
P.O. Box 11127
Beaumont, TX 77710

Lamar University is an Equal Opportunity Employer.


From: Petr Prikryl <PRIKRYL@MATH.CAS.CZ>
Date: Mon, 1 Feb 1999 14:22:33 +0200 (CEST)
Subject: Contents, Applications of Mathematics

Volume 43 (1998), Number 6

Zhu, Q.
A review of two different approaches for superconvergence
analysis, p.401

Malik, J.
Mathematical modelling of rock bolt systems I, p.413

Kubacek, L., Kubackova, L., Tesarikova, E., and Marek, J.
How the design of an experiment influences the nonsensitiveness
regions in models with variance components, p.439

Desch, W.
Local Lipschitz continuity of the stop operator, p.461

Book reviews

Volume 44 (1999), Number 1

Steady vortex rings with swirl in an ideal fluid:
asymptotics for some solutions in exterior domains, p. 1

Feckan, M. and Kollar, R.
Discontinuous wave equations and a topological degree
for some classes of multi-valued mappings, p. 15

Korotov, S., Krizek, M., and Neittaanmaki, P.
On the existence of strongly regular families of triangulations
for domains with a piecewise smooth boundary, p. 33

Brandts, J. H.
Superconvergence of mixed finite element semi-discretizations
of two time-dependent problems, p. 43

Zenisek, A.
Green's theorem from the viewpoint of applications, p. 55


From: Hans Schneider <>
Date: Tue, 2 Feb 1999 10:18:39 -0600 (CST)
Subject: Contents, Linear Algebra and Its Applications

Journal: Linear Algebra and Its Applications
ISSN : 0024-3795
Volume : 286
Issue : 1-3
Date : 17-Dec-1998

pp 1-17
Infima of hilbert space effects
T Moreland, S Gudder

pp 19-35
Ambiguity resistant polynomial matrices

pp 37-44
Products of diagonalizable matrices over a field of characteristic two
JD Botha

pp 45-68
Restrictions on implicit filtering techniques for orthogonal
projection methods
G De Samblanx

pp 69-85
Construction and decoding of BCH codes over finite commutative rings
AA De Andrade

pp 87-106
A Young-Eidson's type algorithm for complex p-cyclic SOR spectra
S Galanis, A Hadjidimos

pp 107-133
Convex convertible cones of matrices-a unified framework for the
equations of Sylvester, Lyapunov and Riccati
I Lewkowicz

pp 135-148
Time-varying discrete Riccati equation:some monotonicity results
G Freiling

pp 149-173
Geometric proofs of some theorems of Schur-Horn type
RS Leite, C Tomei

pp 175-186
On normal affine semigroups
JC Rosales

pp 187-196
A generalization of Sourour's theorem
EW Ellers

pp 197-208
A conjecture concerning strongly connected graphs

pp 209-221
Some inequalities for singular values and eigenvalues of generalized
schur complements of products of matrices
J Liu

pp 223-259
Inversion of a generalized block loewner matrix, the minimal partial
realization, and matrix rational interpolation problem
GN Chen

pp 261-272
Schur norms of bicirculant matrices
M Hladnik

pp 273-285
The Holens-Dokovic conjecture on permanent fails!
IM Wanless

pp 287-295
On matrix groups with finite spectrum
G Cigler

pp 297-301
Norm inequalities for Cartesian decompositions

pp 303-309
Right eigenvalues for quaternionic matrices: A topological approach
A Baker

pp 311-321
Some linear preserver problem on B(H) concerning rank an corank
L Molnar

pp 323-324
Author index vol. 286

Journal: Linear Algebra and Its Applications
ISSN : 0024-3795
Volume : 288
Issue : 1-3
Date : 01-Feb-1999

pp 1-10
Positive definite completions and determinant maximization
W Glunt, TL Hayden

pp 11-22
On constructing matrices with prescribed singular values and diagonal

pp 23-33
Trace form preservers
DB Shapiro

pp 35-43
Hadamard inverses, square roots and products of almost semidefinite
RB Reams

pp 45-51
Forme de Jordan des extensions d'operateurs lineaires (probleme de
Carlson) et sous-espaces reduisants minimaux contenant un sous-espace

pp 53-73
Matrix majorization
G Dahl

pp 75-88
Structured backwards errors for KKT systems
JG Sun

pp 89-104
Commutativity preserving linear maps and lie automorphisms of
triangular matrix algebras
LW Marcoux

pp 105-121
A matrix Euclidian algorithm induced by state space realisation
BM Allen

pp 123-148
The Nevanlinna-Pick interpolation problems and power moment problems
for matrix-valued functions

pp 149-173
Sub-direct sums and positivity classes of matrices
SM Fallat

pp 175-186
On the numerical solution of a nonlinear matrix equation in Markov

pp 187-198
On the contribution of cardinalities of row space of Boolean matrices
L Zhong

pp 199-210
S-subunitvariant norms
B Lavric

pp 211-217
Maximum rank matrix completion
JF Geelen

pp 219-228
Estimation of the mean and the covariance matrix under a marginal
independence assumption- an application of matrix differential
E Cramer

pp 229-241
Exponents of indecomposability
J Shen, DA Gregory

pp 243-247
Remarque sur l'approximation positive contractante
S Cherki

pp 249-258
Applications of vector bundles to factorization of rational matrices
V Lomadze

pp 259-267
On a conjecture of Fiedler and Markham

pp 269-281
Finite rank Hankel operators on the polydisk
C Gu

pp 283-292
The numerical range of products of normal matrices
SW Drury

pp 293-312
Computation of formal fundamental solutions
W Balser

pp 315-316
Author index


End of NA Digest