NA Digest Tuesday, March 24, 1998 Volume 98 : Issue 11

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: Greg Henry <>
Date: Fri, 20 Mar 1998 11:14:22 -0800 (PST)
Subject: Linux BLAS for Intel Architecture

Linux BLAS are now available for Intel Pentium Pro and Pentium II
processors at This html site will
act as a distribution mechanism for the work done on the Intel ASCI Option
Red Supercomputer at SNL that could be useful and easily ported to Linux-based
workstations. This will include the BLAS, FFTs, general utilities and
packages/libraries, and library support for Extended Precision Arithmetic.
This is not an "official Intel" release, hence it is not on an Intel web-site,
but the libraries there were built and tuned for the Intel architecture.

Please feel free to grab as much of this free software as you desire,
- Greg Henry
- Senior Intel Computational Scientist


From: Etienne Emmrich <Etienne.Emmrich@Mathematik.Uni-Magdeburg.DE>
Date: Wed, 18 Mar 1998 15:49:56 +0100
Subject: Gronwall's Lemma

Does anyone know references for

- historical background on Gronwall's lemma,
- discrete versions of Gronwall's lemma?

I would be grateful for any advice.

Etienne Emmrich
Institut fuer Analysis und Numerik
Universitaetsplatz 2
D-39106 Magdeburg
Tel. (0 391) 67 12904
Fax (0 391) 67 18073


From: Ken Turkowski <>
Date: Fri, 20 Mar 98 09:58:09 -0800
Subject: Bivariate Minimax Rational Approximation Wanted

I'd like to approximate a bivariate function on a bounded rectangular
domain with a rational bicubic [tensor product] patch. Please point me to
any algorithms or C-code.

Ken Turkowski vox: +1 (408) 974-6699
Immersive Media Technology Development fax: +1 (408) 974-7774
Apple Computer, Inc. email:
1 Infinite Loop, MS 302-3VR
Cupertino, CA 95014 www: <>


From: Stan Kerr <>
Date: Thu, 19 Mar 1998 17:18:42 -0500
Subject: Searching for PLOD Package

I'm making an inquiry for a person outside my institution who apparently
doesn't have ready Internet access. He found a description of a program
called 'Plod' in IEEE Micro for August 1988 (title: 'Mathematical Software:
Plod'), and is looking for the code. It's described as a package for the
solution of systems of first order initial-value ODE's, using a simple
language for the description of a system, which is then translated to
Fortran code and solved with optional graphic output. (This sort of thing
has been done in commercial packages, of course, but he's looking for
something free, or so I believe). He sent me a copy of the article; it
doesn't say where to get the source but gives David Kahaner as a contact.
(He could even be reading this.) Before I pester Kahaner personally, I'd
like to try this list.

I did searches on 'plod' at <> and at
<>, with no luck. As I explained to the searcher, the
program may have evolved into something else in 10 years, or perhaps he
should search for software based on his problem description and not on a
specific package name. Still, if the package code is still available, it
might be useful for him as a starting point.

Stan Kerr <>
University of Illinois/Urbana-Champaign
Computing & Communications Services
Fax:217-244-7089 Phone:217-333-5217


From: Marc Steinbach <>
Date: Wed, 18 Mar 1998 20:29:17 +0100
Subject: Subsystem Modeling and Estimation

Question: Literature on subsystem modeling/parameter estimation

Suppose you have a complex system consisting of interacting subsystems,
each with an approximate model depending on unknown parameters.
>From measurements at the whole system in different states, you wish
to obtain information to improve the component models qualitatively,
that is, find out which of the subsystem models are "good" or "poor"
and, if possible, get hints "how" the poor models should be modified.

The interactions are known accurately and the models are sufficiently
smooth to perform gradient-based parameter estimation (Gauss-Newton).
Reasonable "nominal" subsystem parameters are also known. Of course,
estimating the whole parameter set, then fixing the nominal parameters
of each subsystem and estimating the remaining ones, yields different
residuals and thus information on "good" or "poor". Also, the Lagrange
multipliers of the fixing conditions give local sensitivity information.

Does anybody know about theoretical or practical work on this issue,
or alternative approaches? Every hint is greatly welcome.

Regards, Marc Steinbach (


From: Jean-Baptiste Hiriart-Urruty <>
Date: Mon, 16 Mar 1998 09:36:07 +0100 (MET)
Subject: New Book, Optimisation et analyse convexe

Announcement of a new book (in French):
Title : Optimisation et analyse convexe ; exercices et problemes corriges
avec rappels de cours. Collection "Mathematiques", Presses Universitaires
de France, 376 pages, 198 FF (34 USD).
Key-words : revisions de calcul differentiel et d'analyse matricielle ;
conditions d'optimalite en minimisation avec ou sans contraintes ;
dualisation de problemes de minimisation convexe ; programmation lineaire ;
initiation a l'analyse convexe (projection sur un convexe ferme, calcul
sous-differentiel et de transformees de Legendre-Fenchel).


From: G. V. Gadiyak <>
Date: Mon, 16 Mar 1998 12:27:43 +0600
Subject: Conference on Simulation of Devices and Technologies

14-16 October 1998


CEFIM of the University of Pretoria, the Department of Electrical and
Electronic Engineering at the University of Stellenbosch and the Institute
of Computational Technologies of the Russian Academy of Sciences (Siberian
Division) would like to invite you to participate in the Sixth International
Conference on Simulation of Devices and Technologies. This conference will
be held at the Breakwater Lodge, Cape Town, South Africa from 14-16 October
1998. Delegates will have to arrive on Tuesday 13 October and depart on
Saturday 17 October 1998.

The conference will address the simulation, modeling and characterization of
electron devices and semiconductor process technologies. Device and process
design will be included in the topics discussed.

* A. Technology simulation
* B. Quantum device modeling/simulation
* C. Monte Carlo Modeling/Simulation
* D. Circuit and Device Modeling
* E. Opto-electronic Modeling/Simulation
* F. South African Technology

The Organizing Committee would like to invite delegates to submit proposals
for contributed papers that fall within the scope of the seminar. Abstracts
must be submitted in English, may not exceed 250-300 words and must reach the
Secretariat not later than 31 May 1998. Abstracts should be sent to the ICSDT
secretariat by fax or e-mail, but original copies must follow by mail.
Abstracts will be reviewed by the international Program Committee and authors
will be notified by 30 June 1998 whether their papers have been accepted for
oral or poster presentations. Original copies of the papers will have to reach
the secretariat by 31 August 1998 for inclusion in the proceedings.

PLEASE FAX to +27-12-342 0778 or +27-12-807 1699
You may also send the information via e-mail to:


From: Frederic Nataf <>
Date: Tue, 17 Mar 1998 09:32:30 +0200
Subject: Minisymposium on Black Box Routines for Parallel Computing".

The Eleventh International Conference on Domain Decomposition Methods will
be held at University of Greenwich, London, on July 20-24, 1998.
We are organizing a one-session minisymposium on "Black box routines for
parallel and distributed computing". We believe this is a subject of paramount
importance for the use of parallel computing by non-expert end users.
As an expert in the field we would like to extend to you our cordial
invitation to give a presentation.

Eleventh International Conference on Domain Decomposition Methods
July 20-24, 1998, University of Greenwich, London, UK

Scope and Objectives:

This Minisymposium will provide a forum for discussing state-of-the-art
in the design and use of black box parallel routines . Papers are solicited
in the following areas:

o Schwarz type methods with Dirichlet or more general interface conditions
o Preconditionned Schur algorithms
o Symmetric and non symmetric equations
o Overlapping/Nonoverlapping subdomains
o Non matching grids
o Implementation in a legacy code
o Use on network of stations or on parallel computers

If you are interested in contributing to this minisymposium,
please submit a one-page abstract on or before April 1st, 1998 to:

Frederic Nataf
Centre de Mathematiques Appliqu=E9es
Ecole Polytechnique
91128 Palaiseau Cedex
33 (0)1 69 33 46 48 (PHONE)
33 (0)1 69 33 30 11 (FAX)


From: Mike Osborne <>
Date: Wed, 18 Mar 1998 16:11:35 +1000
Subject: PDE Meeting in the Sun


Mission Beach, Queensland, Australia, 7-12 September 1998.

The Centre for Mathematics and its Applications, in the School of
Mathematical Sciences at the Australian National University is organising
an international conference at the Mission Beach Resort, Mission
Beach,from Monday 7th to Saturday 12th September, 1998, inclusive. The
main themes for the conference are:

Nonlinear elliptic and parabolic problems;
Variational problems;
Geometric analysis;
Nonlinear waves.

PROGRAM: The following overseas participants have accepted:

Choe Hi Jun (Korea Advanced Inst. of Science and Technology);
Kai-Seng Chou (Chinese University of Hong Kong);
Ovidiu Costin (M.S.R.I.);
Percy Deift (Courant Institute);
Benno Fuchssteiner (Paderborn);
Nicola Fusco (Florence);
Mariano Giaquinta (Pisa);
Bob Gulliver (Minnesota);
Hong Jiaxing (Fudan);
Gerhard Huisken (Tuebingen);
Hitoshi Ishii (Tokyo)
Nina Ivochkina (St. Petersburg);
Bernd Kawohl (Cologne);
Yanyan Li (Rutgers);
Tai-Ping Liu (Stanford):
Chang Shou Lin (National Chung Cheng University, Taiwan);
Mikhail Safonov (Minnesota);
Carlo Sbordone (Naples);
Michael Struwe (ETH);
Gang Tian (MIT);
John Toland (Bath).

For any further questions please contact:

PDE98 conference
Centre for Mathematics and its Applications
School of Mathematical Sciences
Australian National University
Canberra A.C.T. 0200

Fax: 61-2-62495549
see web page:


From: Victor Bardadym <>
Date: Wed, 18 Mar 98 14:27:30 +0200
Subject: Voronoi Conference on Analytic Number Theory and Space Tilings

First Announcement

on Analytic Number Theory and Space Tilings

The Ukrainian Mathematical Society, the Institute of
Mathematics Nat. Acad. Sci. Ukraine, the T.Shevchenko
Kyiv University, and the M.Gogol Nizhyn State Pedagogical
Institute would like to inform you about the
Second Voronoi Conference on Analytic Number Theory
and Space Tilings to be held in Kyiv from 7th to 14th
September 1998.

The Conference will be held in honour of the
eminent Ukrainian Mathematician George Voronoi
(1868-1908) who was born in Zhuravka, a small village
a 160 km east of Kyiv. The Conference will take place at
the University of Kyiv.

The organizing committee will make all efforts to offer
you an enjoyable stay.

Organizing Committee

Acad. Volodymyr Korolyuk (Ukraine), chairman
PD. Dr. Peter Engel (Switzerland), vice-chairman
Corr. memb. Olexander Stepanets (Ukraine), vice-chairman
Dr. Halyna Syta (Ukraine), secretary;
Prof. Volodymyr Kyrychenko,
Dr. Pavlo Kyrychuk,
Dr. Vasyl Ostrovskyi,
Corr. memb. Mykola Perestyuk,
Dr. Alla Polishchuk,
Dr. Halyna Shvets,
Dr. Yaroslav Vynnyshyn,
Prof. Vasyl Yakovets,
Dr. Irina Yegorchenko (Ukraine).

Address of the Organizing Committee:

Voronoi Conference
Dr. H. Syta
Inst. of Mathematics Nat. Acad. Sci. Ukraine
252601 Kyiv-4, Tereshchenkivska str.,3

Programme Committee

Acad. Igor Skrypnik (Ukraine) -- chairman
PD Dr. Peter Engel (Switzerland),
Acad. Volodymyr Korolyuk (Ukraine),
Prof. Volodymyr Kyrychenko (Ukraine),
Prof. Antanas Laurincikas (Lithuania),
Prof. Nikolai Medvedev (Russia),
Prof. Jesper Moller (Denmark),
Prof. Sergei S. Ryshkov (Russia),
Acad. Anatolii Samoilenko (Ukraine),
Prof. Andrzej Schinzel (Poland),
Prof. Marjorie Senechal (USA),
Prof. Vitaly Sushchanskyi (Ukraine),
Dr. Halyna Syta (Ukraine),
Prof. Masaharu Tanemura (Japan),
Prof. Rien van de\ Weygaert (Denmark),
Corr. memb. Mykhailo Yadrenko (Ukraine),
Prof. Vasyl Yakovets (Ukraine).

Topics of the Conference

(1). Analytic Number Theory
(2). Algebraic Number Theory
(3). Voronoi Method of Summability
(4). Probabilistic Models for Voronoi Tessellations
(5). Space Tilings
(6). Applications of Voronoi Domains in Natural Sciences


From: Mike Henderson <>
Date: Wed, 18 Mar 98 12:31:24 EST
Subject: Workshop on Object Oriented Methods for Scientific Computing

SIAM Workshop on Object Oriented Methods for Inter-operable Scientific
and Engineering Computing

October 21-23, 1998
IBM Research
Yorktown Heights, New York


There is a growing awareness in the universities, and industrial
and governmental labs, that object oriented methods have the potential
for greatly improving the usefulness of computers in science and
engineering. There are already many efforts underway to redesign and
reimplement large codes that were written in the 70's and 80's to take
advantage of the improvement in maintainability and flexibility that
OO designs offer.

There still remains a large opportunity to improve the amount of reuse
within the community. Repositories such as Netlib and indices like
GAMS have improved our ability to share code, but making the shared
code useful requires widespread agreement about how the code is
structured and how scientific and engineering codes should

The world is changing. It used to be that large companies had their
own internal development teams, which implemented techniques from the
open literature or developed their own proprietary methods.
University researchers looked for methods for new classes of problems,
and pushed the limits of problem size. Software companies provided
application packages aimed at solving common problems, bundled
with everything from front-ends, to mesh generation and back-ends.

Now, as many large companies are cutting back on in-house software
development, universities and government labs seem to be doing increasingly
more software development and software vendors are springing up to provide
special purpose codes.

What are the new roles for academics, software companies, and industry?
Can a university department support a software product? How does a
company test and fire-harden research code? How can software
companies quickly incorporate new methods into a professional quality
product? Who owns what, and who supports what?

This interdisciplinary workshop will bring together representatives from
academia, software vendors, industry, and government labs, to identify
current and future challenges to implementing and using mathematical
algorithms in scientific and engineering computing.<p>

Organizing Committee:

Mike Henderson, IBM Research
Chris Anderson, UCLA
Steve Lyons, Mobil Technology Co.


The workshop will consist of 3 days of contributed and invited
presentations and discussions including, not not limited to, the
broad topics of:

The current state of the art.
- Tools that work together well (or poorly).
- The environments in which codes are used.
- How new techniques make their way to industrial use.

Developing interoperable scientific codes.
- Packaging codes.
- Balancing interoperability with performance.
- Maintenance and ownership of codes.

Future directions.
- Language of the future.
- Design techniques.
- Standards for the interoperation of mathematical software?

Case studies, position papers proposing topics for discussion, and
technical talks describing particular approaches are solicited.
The organizers are looking for a broad spectrum of participants,
including those involved in the development of industrial codes,
and industrial end users.

How to Contribute:

A report will be issued covering the workshop. Participants will be
required to submit a document for inclusion in this report.
Those wishing to participate should submit an abstract of a
case study, position paper or technical talk by July 1, 1998.
Abstracts should be sent to
Notifications of acceptance will be sent by July 30, 1998.

Important Dates to Remember:
July 1, 1998, deadline for submission of extended abstract.
July 30, 1998, notification of acceptance.
August 31 1998, deadline for submission of final paper.


From: Sharon Filipowski <>
Date: Fri, 20 Mar 1998 10:30:49 -0800
Subject: Institute for Operations Research and the Management Sciences

The Institute for Operations Research and the Management Sciences
Sunday October 25 until Wednesday October 28, 1998
At the Washington State Convention and Trade Center
Seattle, Washington

INFORMS holds conferences twice a year, usually covering a
broad range of topics. At the fall conference to be held in
Seattle, a strong optimization field will be in attendance.
Below is the information on the organizing committee and the
plenary and tutorial speakers. May 1, 1998 is the final date
to register for a contributed talk. Please see the conference
web page at for more

Chair, Optimization Section, INFORMS, Fall 1997-Fall 1998:
Jong-Shi Pang (The Johns Hopkins University)

Local Optimization Committee:
Sharon Filipowski (The Boeing Company)
Paul Tseng (The University of Washington)

Clusters and Chairs:
Complementarity Problems:
Stephen Billups (The University of Colorado at Denver)
Global Optimization:
Panos Pardalos (The University of Florida)
Linear Programming and Related Topics:
Robert Vanderbei (Princeton University)
Network and Combinatorial Optimization:
Jon Lee (The University of Kentucky)
Janny Leung (City University of Hong Kong)
James Orlin (MIT)
Nonlinear Programming:
Virginia Torczon (William and Mary)
Nonsmooth Optimization:
Robert Mifflin (Washington State University)
Optimization and Artificial Intelligence:
Kristin Bennett (RPI)
Scheduling and Integer Programming:
Leslie Hall (The Johns Hopkins University)
John Mitchell (RPI)

Optimization Plenary:
Stephen M. Robinson (The University of Wisconsin)
Title of Lecture: Optimization and Equilibrium

Optimization Tutorials:
Michael J. Todd (Cornell University)
Title of Lecture: Semidefinite Programming: Applications, Duality,
and Interior-Point Methods

Michael C. Ferris (The University of Wisconsin)
Title of Lecture: Complementarity Problems: Applications, Modeling
and Solution

David Shmoys (Cornell University)
Title of Lecture: Approximation Algorithms via Linear Programming

David P. Williamson (IBM T.J. Watson Research Laboratory)
Title of Lecture: Some Applications of Semidefinite Programming
to Combinatorial Optimization

Usama Fayyad (Microsoft Research) and Evangelos Simoudis (IBM)
Title of Lecture: Data Mining Part I

Usama Fayyad (Microsoft Research) and Evangelos Simoudis (IBM)
Title of Lecture: Data Mining Part II


From: Will Light <>
Date: Mon, 16 Mar 1998 09:10:18 +0000 (GMT)
Subject: Positions at University of Leicester

Department of Mathematics and Computer Science
University of Leicester, UK

Recently, we posted details on NA-NET of 2 positions on Computer Science
available at Leicester. That posting consisted of the standard information
distributed about the positions. What was probably not clear from these details
was that (a) Leicester has a strong research group in numerical analysis, and
(b) there is already considerable collaboration between the computer science
and the numerical analysis research groups. One of the target areas for one
of the appointments is parallel computing.

I would encourage people who have a research interest in parallel computing
related to numerical analysis to consider applying. The lectureships are both
grade A/B on the UK scale: GBP 16,045 -- 27,985.

Will Light


From: Horst Simon <>
Date: Mon, 16 Mar 1998 05:41:23 -0800
Subject: Position at National Energy Research Scientific Computing Center

Position Announcement
Group Leader - Scientific Computing Group at NERSC

The National Energy Research Scientific Computing Center(NERSC)
at Lawrence Berkeley National Laboratory is
the nation's most powerful unclassified computing resource.
The center operates eight high-performance
computers and two mass data storage systems.
NERSC is located in the Berkeley Hills,
only a few minutes away from the campus of
the University of California at Berkeley.

NERSC is inviting qualified candidates to apply for the
position of Group Leader for the Sceintific Computing Group (SCG).
The SCG is working on diverse scientific
applications in connections with the fields of

Material Sciences
Atmospheric and Ocean Modeling
Computational Fluid Dynamics
Computational Physics
Computational Chemistry

as well as cross cutting technologies in scientific computing:

Numerical Linear Algebra such as dense and sparse linear/eigensystem solvers
Mathematical libraries and templates
Parallel Programming Environments and Software Tools

Candidates must have demonstrated experience in leading and managing
computational science research and development teams. Past involvement in
scientific computing research supporting large scale
scientific applications on high performance computing architectures, and
significant research experience and demonstrated expertise in one or more
aspects of scientific computing of relevance to the group are required.

For a detailed position description see
and look for position NERS228.

For more details about NERSC see

You may forward your resume or curriculum vitae via our Mailing Address:

One Cyclotron Road, MS 938A, Berkeley, CA 94720

1. Refer to the job number NERS228 in your cover letter.


via E-Mail to: Berkeley Lab Employment Office,

1. Send as plain text.
2. Refer to the job number NERS228 in the SUBJECT of your message.

Horst D. Simon


From: D. Sloan <>
Date: Thu, 19 Mar 1998 12:28:24 GMT
Subject: Position at University of Strathclyde


Applications are invited for a Professorship in the Department of
Mathematics to provide research leadership in Applied Mathematics.
We are seeking an individual who has established an international
research reputation in a branch of modern applied mathematics that
would strengthen existing research activities in the Department.
These activities are in Applied Analysis, Continuum Mechanics,
Industrial Mathematical Modelling and Numerical Analysis.
Further information about the research interests in the Department
can be obtained through the World Wide Web at

For application form (Ref: 25/98) and further particulars contact
the Personnel Office, University of Strathclyde, Glasgow G1 1XQ.

Telephone +44 (0) 141 553 4133 (24 hour Voicemail Service).

Applications closing date: 24 April 1998

The University is 'A Place of Useful Learning' and committed to Equal


From: Siegfried Mueller <mueller@igpm.RWTH-Aachen.DE>
Date: Thu, 19 Mar 1998 13:58:59 +0100
Subject: Position at RWTH Aachen

A research group on CFD, the SFB 401
"Modulation of flow and fluid-structure interaction at airplane wings"
has been established at the Technical University of Aachen in January 1997.
For a project on grid generation we have an open position (Ph Studentship)
for a canditate with background in mathematics or computer science

The successfull candidate will design and implement an
algorithm for the generation of hexahedral element
meshes that will be used in other projects for the calculation
of the flowfield at wings. She / he is expected to
have good programming skills, interest in geometric algorithms,
strong background in numerical algorithms and willingness to cooperate
with other members of the research group. Knowledge in CFD would be a plus.

The salary is according to Bat II/2. Please forward resumes to:

Prof. Dr. Wolfgang Dahmen
Institut fuer Geometrie und Praktische Mathematik
RWTH Aachen
Templergraben 55
52056 Aachen
Telefon: 0241-80-3951

A more detailled description of the project is available at the webpage:


From: Peyman Milanfar <>
Date: Thu, 19 Mar 1998 09:25:40 -0800
Subject: Positions at SRI International


The following positions are open in the Applied Electromagnetics Lab
of SRI International. Located in Menlo Park, California, in the heart
of Silicon Valley, SRI (formerly Standord Research Institute) is one
of the largest independent, nonprofit research, technology
development, and consulting organizations in the nation.

If you are interested in pursuing any of these positions, please
forward your resume to:

Dr. Peyman Milanfar, AEL, 404-69
SRI International,
333 Ravenswood Ave., Menlo Park, CA 94025

FAX: 650-859-6259; Email:

When replying, please refer to the PR# and let us know how you heard
about the position.

For additional information,
check out our Web site at:

Sr. Research Analyst (PR#75611) $50-69K Salary

The candidate will be responsible for analysis and interpretation of
data collected by state-of-the-art-remote sensing and image processing
systems. The analysis will require using modern image manipulation
languages such as IDL as well as project specific signal processing
tools for statistical and Fourier analysis. The ideal candidate will
have a
solid basic science background, which will be applied in interpreting
phenomenology in the data. The candidate should also have strong
computing skill with FORTRAN, Unix, and the web. The candidate will
need to be able to work independently under the guidance of senior
scientists and engineers. Good oral and written communication skills
are also required for frequent presentations of findings to peers.

Scientific Programmer/Analyst (PR#75610) $50-65K Salary

The candidate will write scientific software for exciting,
state-of-the-art signal and image processing applications. The
software will perform complex physics-based algorithms as well as
mathematical and statistical signal processing. The candidate will be
expected to interpret the output of the processing, with the aid of
senior physicists and mathematicians, in order to validate the
correctness of the algorithms and to assist in interpreting the
results. In addition to required strong computer skills, a background
in physics, mathematics, or engineering is highly desirable. FORTRAN
and Unix are required, and IDL, C, and strong web skills are highly
desirable. Good oral and written communication skills
are also required for frequent presentations of findings to peers.

Sr. Research Engineer (PR#70430) $65-85K Salary

The candidate will perform research in physics, phenomenology, and
signal processing for exciting, state-of-the-art remote sensing and
image processing systemresearch. The ideal candidate will have at
least 10 years experience in one or more of the following fields:
applied physics, electrical engineering, digitalsignal processing, and
mathematics and statistics. The candidate should have an advanced degree
science or mathematics, and experience in the fields of remote sensing
and signal and image processing is highly desirable. Strong computer
skills are also essential, with FORTRAN, IDL, Unix, and web skills
especially relevant. The candidate will work in a team environment
with other senior scientists, and will be expected to serve as a
principal inve stigator for research tasks, managing small groups of
other scientists and programmers. Good oral and written communication
skills are also required for frequent presentations of findings to peers.


From: Axel Ruhe <>
Date: Fri, 20 Mar 1998 16:45:22 +0100
Subject: Positions at Chalmers, Goteborg, Sweden

Applications are invited for several positions as

Associate professor ("universitetslektor") (Ref no 49/98)

At least two permanent positions as associate professor
("docent/universitetslektor") will be filled. The positions contain
undergraduate teaching at Chalmers University of Technology and
G=F6teborg University, research, supervision of doctoral students, and
administration. The proportion of research depends on the
availability of external research grants. At least one of the
positions is supposed to have a profile in numerical analysis and
scientific computing.

To be appointed you must have a PhD degree and proven pedagogical skills.

Our teaching is mainly in Swedish and the candidate should speak and
write Swedish or learn these facilities within half a year.

Assistant professor ("forskarassistent") (Ref no 51/98)

At least four positions as assistant professor will be filled. These
positions are limited to four years. There will be a large demand for
teachers also in the future and it is expected that the assistant
professors will have gained the competence required for the
appointment to a permanent position at the end of the four year

By taking part in research and supervision of graduate students,
assistant professors are expected to develop their ability to
formulate research problems, lead projects, work in a resarch group,
and also to develop and prove their teaching skills. Applications
from young researchers with strong potential are favored. The
assistant professors will do half-time teaching and half-time

To be appointed to a position as assistant professor you must have a
PhD and be a good teacher.


The application should contain a short review in English of the
teaching experience and scientific work as well as other merits that
are referred to. Teaching and scientific records as well as other
merits that are considered most important should be indentified.
Teaching merits need to be verified. The complete application
including scientific publications should be prepared in three
identical packages.

More information may be obtained from Bo I Johansson, chairman, phone
+46-31-772 3535,

Your application has to arrive at the Personnel Office, Chalmers
University of Technology, Kapellg=E5ngen 5, S-412 96 G=F6teborg, Sweden,
no later than March 31 1998.

You may also contact me or somebody else at Chalmers.

Axel Ruhe Telephone int-46-317721096 (office)
Department of Mathematics int-46-31483168 (home)
Chalmers University of Technology Fax int-46-31161973
S-41296 Goteborg, Sweden URL


From: Baltzer Science <>
Date: Thu, 19 Mar 1998 10:09:41 +0100
Subject: Contents, Numerical Algorithms

Numerical Algorithms 16 (1997) 3,4

Kai Diethelm and Guido Walz
Numerical solution of fractional order differential equations by
extrapolation 231-253

Rosemary Renaut and Yi Su
Evaluation of Chebyshev pseudospectral methods for third order differential
equations 255-281

Milvia Rossini
Irregularity detection from noisy data in one and two dimensions 283-301

Sven Ehrich
Sard-optimal prefilters for the Fast Wavelet Transform 303-319

P. Verlinden, D.M. Potts and J.N. Lyness
Error expansions for multidimensional trapezoidal rules with Sidi
transformations 321-347

W.H. Enright and H. Hayashi
A delay differential equation solver based on a continuous Runge--Kutta
method with defect control 349-364

Xiu Ye and Charles A. Hall
A discrete divergence-free basis for finite element methods 365-380

Claude Brezinski
Book reviews 381-382


From: Ira Smiley <>
Date: Wed, 18 Mar 98 17:18:24 -0500
Subject: Contents, SIAM Journal on Control and Optimization

SIAM Journal on Control and Optimization
Volume 36, Number 3, MAY 1998

Equilibrium Conditions for Young Measures
Pablo Pedregal

Differential Games with Unbounded versus Bounded Controls
Franco Rampazzo

Asynchronous Stochastic Approximations
Vivek S. Borkar

Boundary Value Problems and Optimal Boundary Control for the
Navier-Stokes System: The Two-Dimensional Case
A. V. Fursikov, M. D. Gunzburger, and L. S. Hou

Existence of an Optimal Solution of a Shape Control Problem for the
Stationary Navier-Stokes Equations
Max D. Gunzburger and Hongchul Kim

Central Limit Theorem and Law of Iterated Logarithm for Least Squares
Algorithms in Adaptive Tracking
Bernard Bercu

Stochastic Near-Optimal Controls: Necessary and Sufficient Conditions
for Near-Optimality
Xun Yu Zhou

The Symmetric Rendezvous-Evasion Game
Steve Alpern and Wei Shi Lim

An Integral Invariance Principle for Differential Inclusions with
Applications in Adaptive Control
E. P. Ryan

Optimal Boundary Control of the Stokes Fluids with Point Velocity
Puhong You, Zhonghai Ding, and Jianxin Zhou

Globally and Superlinearly Convergent Algorithm for Minimizing a
Normal Merit Function
Elijah Polak and Liqun Qi

Ergodic Boundary/Point Control of Stochastic Semilinear Systems
T. E. Duncan, B. Maslowski, and B. Pasik-Duncan

Proximal Analysis and the Minimal Time Function
Peter R. Wolenski and Yu Zhuang

A Classical Approach to Uniform Null Controllability for Elastic Beams
Miguel Angel Moreles

Exponential Decay of Energy of the Euler-Bernoulli Beam with Locally
Distributed Kelvin-Voigt Damping
Kangsheng Liu and Zhuangyi Liu

Optimal Control of Inflation: A Central Bank Problem
Maria B. Chiarolla and Ulrich G. Haussmann


From: Lisa Dougherty <>
Date: Mon, 23 Mar 98 10:48:40 -0500
Subject: Contents, SIAM Journal on Discrete Mathematics

SIAM Journal on Discrete Mathematics
Volume 11, Number 2, May 1998

An Optimal Acceptance Policy for an Urn Scheme
Robert W. Chen, Alan Zame, Andrew M. Odlyzko, and Larry A. Shepp

The Lovasz Theta Function and a Semidefinite Programming Relaxation of
Vertex Cover
Jon Kleinberg and Michel X. Goemans

On Perfect Codes and Tilings: Problems and Solutions
Tuvi Etzion and Alexander Vardy

Sorting by Transpositions
Vineet Bafna and Pavel A. Pevzner

Perfect Factors from Cyclic Codes and Interleaving
Chris J. Mitchell and Kenneth G. Paterson

Isomorphism Classes of Concrete Graph Coverings
Rongquan Feng, Jin Ho Kwak, Juyoung Kim, and Jaeun Lee

Enumeration of Regular Graph Coverings Having Finite Abelian Covering
Transformation Groups
Jin Ho Kwak, Jang-Ho Chun, and Jaeun Lee

A Note on Counting Connected Graph Covering Projections
Michael Hofmeister

A Generalized Distance in Graphs and Centered Partitions
Cristian Lenart

Cayley Digraphs Based on the De Bruijn Networks
M. Espona and O. Serra

A Greedy Algorithm Estimating the Height of Random Trees
Tomasz Luczak

Circulants and Sequences
Karen L. Collins

Semikernels and (k, l)-Kernels in Digraphs
H. Galeana-Sanchez and Xueliang Li


From: Kelly Thomas <>
Date: Mon, 23 Mar 98 15:19:12 -0500
Subject: Contents, SIAM Journal on Mathematical Analysis

SIAM Journal on Mathematical Analysis
Volume 29, Number 3, MAY 1998

The Shape of the Tallest Column
Steven J. Cox and C. Maeve McCarthy

Slow Dynamics of Interfaces in the Allen-Cahn Equation on a Strip-Like Domain
Shin-Ichiro Ei and Eiji Yanagida

An Extension of Marchioro's Bound on the Growth of a Vortex Patch to Flows with
L^p Vorticity
M. C. Lopes Filho and H. J. Nussenzveig Lopes

Nonlinear Instability of a Precessing Body with a Cavity Filled by an Ideal
Andrei A. Lyashenko and Susan J. Friedlander

On the Chapman-Jouguet Limit for a Combustion Model
Bernard Hanouzet, Roberto Natalini, and Alberto Tesei

On Maxwell's Equations in an Electromagnetic Field with the Temperature Effect
Hong-Ming Yin

All-Time Existence of Classical Solutions for Slightly Compressible Flows
Thomas Hagstrom and Jens Lorenz

The Second Stekloff Eigenvalue and Energy Dissipation Inequalities for
Functionals with Surface Energy
Robert Lipton

Global Stability in Chemostat-Type Equations with Distributed Delays
Xue-Zhong He, Shigui Ruan, and Huaxing Xia

Recovery of Singularities of a Multidimensional Scattering Potential
Lassi Paivarinta and Valeri Serov

Radial Symmetry and Decay of Variational Ground States in the Zero Mass Case
M. Flucher and S. Muller

L _infinity Estimates on the Solutions of Nonselfadjoint Elliptic and Parabolic
Equations in Bounded Domains
Adrian T. Hill

Analysis of Concentration and Oscillation Effects Generated by Gradients
Irene Fonseca, Stefan Muller, and Pablo Pedregal

Solutions of Finitely Smooth Nonlinear Singular Differential Equations and
Problems of Diagonalization and Triangularization
Harry Gingold and Alexander Tovbis

Orthogonal Polynomials and Cubature Formulae on Spheres and On Balls
Yuan Xu

Convolutions for Orthogonal Polynomials from Lie and Quantum Algebra
H. T. Koelink and J. Van der Jeugt


From: Elsevier Science <>
Date: Mon, 23 Mar 1998 22:34:24 GMT
Subject: Contents, Computer Physics Communications

ISSN : 0010-4655
Vol./Iss. : 109 / 2-3

POS-SPRITE -- an extensible calculation of positron and
electron implantation in metals
Ritley , K.A.
pp.: 93-110

NIRVANA+: An adaptive mesh refinement code for gas dynamics
and MHD
Ziegler , Udo
pp.: 111-134

Shell: a code for lattice dynamics and structure
optimisation of ionic crystals
Taylor , M.B.
pp.: 135-143

Quadratically optimized polynomials for fermion simulations
Montvay , I.
pp.: 144-160

Improved algorithms for simulating crystalline membranes
Thorleifsson , Gudmar
pp.: 161-170

Numerical integration of the equations of motion for rigid
polyatomics: The matrix method
Omelyan , Igor P.
pp.: 171-183

LMD -- Calculation of longitudinal momentum distributions in
the single ionization of helium by ion impact
O'Rourke , S.F.C.
pp.: 184-192

ZPC 1.0.1: a parton cascade for ultrarelativistic heavy ion
Zhang , Bin
pp.: 193-206

Monte Carlo optimization applied to symmetry breaking
Kim , Jai Sam
pp.: 207-226

MERLIN--3.0A multidimensional optimization environment
Papageorgiou , D.G.
pp.: 227-249

The Merlin Control Language for strategic optimization
Papageorgiou , D.G.
pp.: 250-275


End of NA Digest