NA Digest Sunday, June 5, 1994 Volume 94 : Issue 23

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to


From: Gene Golub <golub@sccm.Stanford.EDU>
Date: Sun, 5 Jun 94 17:25:57 PDT
Subject: Ed Block

Ed Block, who is the executive director of SIAM and has been responsible
for much of the success of SIAM, has recently been ill. Ed had quadruple
bypass surgery and underwent surgery again this past Monday for removal
of his gallbladder. He is resting comfortably at Temple University Hospital.

Dr. I. Edward Block
Temple University Hospital
Room 745B
3401 Broad Street
Philadelphia, PA 19104
(215) 707-2185

I'm sure he would be pleased to hear from his many friends.



From: Yuan Jinyun <>
Date: Tue, 31 May 94 9:27:52 GMT-3:00
Subject: Seeking Postdoctoral Position

I am looking for a position as a Postdoctoral Researcher or Visiting
Professor in one of the following areas:

1. Numerical Linear Algebra (specially Least Squares Methods);
2. Iterative Methods, inluding nonlinear optimization;
3. Mathematical and Numerical Methods for Integ-Differential Equations,
specially in applications of Electromagnetic Theory, Microwace and
4. Scientific Computations.
Please let me know if you are interested in me, and I will send you my
CV and reference information. My email address is

Best regards!

Yours sincerely
Yuan Jinyun


From: Sorin Pop <>
Date: Fri, 3 Jun 94 14:48:09 +0200
Subject: Degenerate Complex Linear Systems

Dear na-neters,

I am interested to find all the values for which a system
of the form:
Ax = cBx + (c*c)Dx,
where A,B and D are complex matrices, while c the (complex)
parameter, becomes degenerate. Any suggestions referring
to the numerical handling of these problems would be greatly

Thank you very much for your consideration and time.


Sorin Pop


From: Manuel Matencio <>
Date: Thu, 2 Jun 94 16:52:09 +0200
Subject: Help on Block Jacobi Method for SVD


I'm a DEA student of Grenoble and I'm doing a stage in the LMC laboratory.
I'm working on the SVD problem, and I would like to have some informations on
the block Jacobi method. More precisely, I can't find the computation of the
2*2 subproblem: compute Xij (a 2m/l*2m/l matrix) and Yij (a 2n/l*2n/l matrix),
where l is the number of blocks such that:

t [ Aii Aij ] [ Dii 0 ]
Xij [ ] Yij = [ ]
[ Aji Ajj ] [ 0 Djj ]

I know this is done in: Bishof & Van Loan "Computing the singular value
decomposition on a ring of array processors" (Large Scale Eigenvalue Problems,
Cullum & Willoughby eds, North-Holland, Amsterdam, 1986, p.51-66);
but I can't find this article.

Maybe someone can help me?

Manuel Matencio.

Magistere Mathematiques et Applications
UJF Grenoble


From: Axel Ruhe <>
Date: Tue, 31 May 94 14:17:27 +0200
Subject: FTP Reports from Chalmers, Goteborg

Dear NA-netters,
We have created a public ftp library at the site
You can get some recent reports in the directory
A list is provided in the file

Currently you can find reports by Thomas Ericsson, Ivar Gustafsson,
Gunhild Lindskog and myself. We expect to add reports from Vidar Thomee,
Claes Johnson and collaborators later.
Best regards,

Axel Ruhe
Department of Computing Science
Chalmers University of Technology
S-41296 Goteborg
Telephone int-46-317721096 (office)
int-46-31483168 (home)
Fax int-46-31165655


From: Michael Hosea <>
Date: Sat, 4 Jun 1994 20:10:26 -0500 (CDT)
Subject: RKTEC v2.1 Available

RKTEC version 2.1 is now available. This is an ANSI C program for
computing truncation error coefficients of Albrecht's error expansion
for Runge-Kutta formulas. Albrecht's expansion is equivalent to
Butcher's but uses a different basis of elementary differentials and
enjoys some advantages over the classical approach.

With version 2.1 a radial stability region "plotter" has been added,
making the tool more convenient for formula comparison. For formula
derivation a Maple version is in the works. Let me know if you're
interested in the Maple version. (If there is sufficient interest
I will devote more time to it.)

Version 2.1 should be available from Netlib shortly. At present it can
be obtained by anonymous ftp to in pub/papers/Hosea or by
gopher to in the "Hosea" directory under "Faculty
Publications". The ANSI C source code (rktec21.c) and an MS-DOS
executable (rktecexe.uue) are there as well as a couple of related


Mike Hosea Department of Mathematical Sciences
( Northern Illinois University
(815) 753-6732 DeKalb, IL 60115


From: Richard Hanby <>
Date: Wed, 1 Jun 94 13:12:38 +0100
Subject: High Level Numerical Computations Package

I thought na-net readers might like to know of a public-domain
numerical computations package that I recently stumbled across. It's
called "Octave" and is distributed under the terms of the GNU General
Public License.

The program is similar in style to Matlab, using Gnuplot for graphical
output. The underlying numerical solvers used by the program are the

The latest released version of Octave is available via anonymous ftp
from in the directory /pub/octave. Complete source
and binaries for several popular systems are available.

Richard Hanby


From: Pawel Bujakiewicz <>
Date: Wed, 1 Jun 1994 17:55:37 +0200
Subject: Thesis on High Index DAE

Hi all

I have just written thesis (uff):

"Maximum weighted matching for high index differential algebraic equations"

and I would like to reach people who are interested in the subject of
numerical solution of high index DAE and who would be interested in the
algorithm proposed in my thesis, or just who would say if it is worth
anything. A short summary of ideas presented my thesis is available via
e-mail. If any of you are interested please e-mail your address to me
and I will post it to you. If you have any comments/questions about this
text I would be happy to communicate on this subject.

Pawel Bujakiewicz
TU Delft, Control Laboratory 5031, 2600 GA Delft, NL
tel: 31+15-785591 fax: 31+15-626738


From: Lester Ingber <>
Date: Wed, 01 Jun 1994 09:22:29 -0700
Subject: Adaptive Simulated Annealing

Adaptive Simulated Annealing (ASA) version 3.13

The latest Adaptive Simulated Annealing (ASA) code and some related
(p)reprints can be retrieved via anonymous ftp from [] in the /pub/ingber directory.

A new OPTION now collects data during the global optimization process
to importance-sample the user's variables.

The latest version of ASA, ASA-x.y (x and y are version numbers), can
be obtained in several formats. ASA-shar.Z is a compress'd shar'd file
of the current code. For the convenience of users who do not have any
uncompress/gunzip utility, there is a file ASA-shar which is an
uncompress'd copy of ASA-shar.Z; if you do not have sh or shar, you
still can delete the first-column X's and separate the files at the
END_OF_FILE locations. There are tar'd versions in compress and gzip
format, ASA.tar.Z and ASA.tar.gz, respectively. There also is a
current zip'd version,, in which all files have been processed
through unix2dos. Directory /pub/ingber/0lower.dir contains links to
these files for some PC users who may have difficulty with upper case.

Sorry, I cannot assume the task of mailing out hardcopies of code or
papers. My volunteer time assisting people with their queries on my
codes and papers must be limited to electronic mail correspondence.

To get on or off the ASA_list e-mailings, just send an e-mail to with your request. Update notices are
sent to the ASA_list about every month or two, more frequently if
warranted, e.g., in cases of important bug fixes; these notices are the
only e-mail sent to the ASA_list.


Prof. Lester Ingber
Lester Ingber Research
P.O. Box 857 E-Mail:
McLean, VA 22101 Archive:


From: Lester Ingber <>
Date: Sun, 05 Jun 1994 10:15:26 -0700
Subject: Research Opportunities Parallelizing ASA and PATHINT

Research Opportunities Parallelizing ASA and PATHINT

I am looking for one to several people with experience parallelizing C
code, e.g., on Crays, to work on parallelizing two specific
algorithms: (a) Adaptive Simulated Annealing (ASA), and (b) an
algorithm to calculate the time-development of multi-variable nonlinear
Fokker-Planck-type systems, using a powerful non-Monte Carlo path
integral algorithm (PATHINT). Some code and papers dealing with these
algorithms can be obtained from
[] in the /pub/ingber directory.

I am PI of an award of Cray time on an NSF Supercomputer, and have
ported these codes successfully onto a C90. However, I am short of
time to further optimize these codes, which is an essential requirement
before doing production runs on C90 and T3D Crays. If necessary, I
will do this work myself, but I would rather share the work,
experience, and research with other interested people who also can
expedite these projects. All code will remain under my copyright under
the GNU General Public License (GPL), i.e., the least restrictive
Library GPL.

There are several immediate projects that are just waiting for detailed
calculations, using codes which already run on SPARCstations, but need
the power of supercomputers for production runs. All results of these
studies will be published in peer-reviewed scientific journals, and
only active participants on these projects will be co-authors on these

Examples of these projects include:
EEG correlates of behavioral states
short-term memory modeling
realistic chaos + noise modeling
financial applications
2- and 3-state term-structure security calculations
testing of trading rules
nonlinear modeling
persistence of chaos in the presence of moderate noise

If you are interested, please send me a short description of projects
you have worked on, and how many hours/week you are prepared to commit
to these projects for at least a period of 6-12 months.


Prof. Lester Ingber
Lester Ingber Research
P.O. Box 857 E-Mail:
McLean, VA 22101 Archive:


From: Ralph B Kearfott <>
Date: Thu, 2 Jun 1994 00:10:38 -0500
Subject: Special Issue of Journal of Symbolic Computation

Special Issue on
Validated numerical methods and computer algebra

Papers are solicited for a special issue of the Journal of Symbolic
Computation on validated numerical methods and computer algebra.
The special issue is scheduled for early 1995.

Of interest are recent advances in correct methods which combine
symbolic computations with validated numerical methods. Also methods
which bear the potential for such a combination will be considered.
This includes - but is not limited to - the use of interval algorithms
in computer algebra systems, analytical evaluations in interval algorithms,
the organization of symbolic-numerical interfaces, and the application
of hybrid symbolic-numerical methods with guaranteed results for
advanced problem solving.

The complete paper should be received no later than September 1, 1994
by Werner Krandick at the address given below. The submission must be
in English and may not exceed 30 pages. Submission of a hard copy is
allowed, electronic submission of a Latex file is preferred. Authors are
strongly encouraged to use the LATEX macro jsc.sty which is available from
Academic Press (24-28 Oval Road, London NW1 7DX) or by anonymous ftp from
in directory

Papers should be of high quality and in a form that will not require
major revisions, since this special issue is being developed under a
tight schedule.

Guest Editors:
Dr. Werner Krandick Professor Dr. Siegfried Rump
Research Institute Technische Informatik III
for Symbolic Computation TU Hamburg-Harburg
University Linz Eissendorfer Str. 38
A-4040 Linz D-21071 Hamburg
Austria Germany
Phone: A-7236-3231-44 Phone: D-40-7718-3027
FAX: A-7236-3231-30 FAX: D-40-7718-2573
Email: Email:


From: P.S.Swathi <>
Date: Tue, 31 May 94 15:19:10 EDT
Subject: Supercomputer in Bangalore


A state-of-the-art supercomputer recently became operational in
Bangalore at the CSIR Centre for Mathematical Modelling and
Computer Simulation (C-MMACS). The system is an aircooled
supercomputer of the CONVEX C3800 series which is unique in its
use of advanced technology gallium arsenide gate arrays. The
system comprises of two CPUs, a main memory of 512 Mbytes and a
disk capacity of 34 GBytes. It is rated at 240 peak Mflops in 64-
bit and 480 peak Mflops in 32-bit computations. The C-MMACS
system has compilers which offer automatic interprocedural
optimisation, vectorisation and parallelisation. It also has a
powerful application visualisation system. The shared memory
vector processor architecture of the CONVEX supercomputer at C-
MMACS results in several advantages, namely, excellent
performance in large scientific problems which require
vectorisation, parallelisation and optimisation, availability of
proven mature compilers, and what is probably the most important
from the view point of users, extremely easy parallel

The CONVEX Computer Corporation, USA supplied the supercomputer
through WIPRO Infotech Ltd. The recent liberalisation of US
export control regulations made it possible to import this high
performance computer without any strings.

C-MMACS (pronounced see-max) was established by the Council of
Scientific and Industrial Research (CSIR) in 1988, with a view to
catalyzing, supporting, and strengthening the wide gamut of
scientific programmes in its laboratories. These programmes are
aimed at providing creative new approaches to the design and
analysis of complex systems through mathematical modelling and
computer simulation of their behavioural responses and evolving
structures. C-MMACS is located in the campus of the National
Aerospace Laboratories and it is headed by Dr.K.S.Yajnik. Its
primary objective is to develop and provide expertise and
facilities for modelling and simulation of a wide class of
natural and engineering systems that constitute the core of many
contemporary problems in science and technology. C-MMACS is
governed by a Management Committee under the chairmanship of
Prof. S.K. Joshi, Director General of CSIR.

Scientists at C-MMACS, National Aerospace Laboratories and
several other institutions, who have used the CONVEX
supercomputer at this centre, have found its performance and
capabilities highly satisfying - indeed exciting. They have
discovered that highly complex simulations in areas as widely
different as aerodynamics and molecular modelling, which require
massive computing, have now become possible in an acceptable
timeframe, thereby opening a new era of high-end scientific
computing in India.


From: Volker Mehrmann <volker.mehrmann@Mathematik.TU-Chemnitz.DE>
Date: Tue, 31 May 94 18:56:08 MESZ
Subject: 1996 Meeting of International Linear Algebra Society

Preliminary anouncement:

The 1996 meeting of the International Linear Algebra Society will
take place in Chemnitz, Germany from August 14-17, 1996.

Info from:

Volker Mehrmann Tel.: (049) (0)371-531-8367 (office)
Fakultaet fuer Mathematik Tel.: (049) (0)371-531-2659 (secretary)
TU Chemnitz-Zwickau Tel.: (049) (0)172-3482395 (private)
PSF 964 Fax.: (049) (0)371-531-2657
D-09009 Chemnitz email:
FRG priv. addr.: Fichtestr. 18, D-09126 Chemnitz


From: D. Sloan <>
Date: Wed, 1 Jun 94 13:12:29 BST
Subject: Scottish Computational Mathematics Symposium

Scottish Computational Mathematics Symposium
One day conference on

Monday 12 September 1994


C J Budd (University of Bristol)
Self-similarity and adaptive remeshing

C M Elliott (University of Sussex)
Phase field computations of solidification of undercooled liquids

N J Higham (University of Manchester)
Painless rounding error analysis

E F Toro (Manchester Metropolitan University)
Multidimensional waf-type schemes for hyperbolic conservation laws

For further information contact
Dr J A Mackenzie
Department of Mathematics
University of Strathclyde
Glasgow G1 1XH


From: M. K. Kwong <>
Date: Thu, 2 Jun 1994 15:16:29 -0500
Subject: Gigabyte Image Processing and Visualization


July 8 -- 9
Mathematics and Computer Science Division

Purpose The purpose of the Workshop is to bring together leaders
^^^^^^^ in different aspects -- methods and applications, academia
and industry -- of very large scale image processing and

1) to present the current state of the art,

2) to explore major challenges in the next decade foreseen by
experts especially along the line of increasing sizes of
the problems, and

3) to explore major benefits foreseen by experts if some of
the challenges are met.

The expectation is that new research ideas, motivation,
applications, and collaboration will be generated by this

Talks on Friday (morning and afternoon) and Saturday (morning).
Panel discussion at the end of each day.

Partial List of Speakers
Professor Pat Hanrahan, Princeton University
Professor Ken Hoffman, University of Chicago
Professor C.C. Jay Kuo, University of Southern California
Professor Yongmin Kim, University of Washington
Herbert Taylor, David Sarnoff Research Center
Andrew G. Tescher, Lockheed Palo Alto Reserach Laobratory

Organizers: Dr. Man K. Kwong
Dr. P.T. Peter Tang

Mathematics and Computer Science Division
Argonne National Laboratory
Tel: (708) 252-7486 (Kwong)
(708) 252-7831 (Tang)
Fax: (708) 252-5986


From: Filiep Vanpoucke <>
Date: Fri, 03 Jun 94 09:10:35 +0200
Subject: Summer Workshops in Leuven

3rd International Workshop on
SVD and Signal Processing
August 22-25, 1994
Leuven - Belgium

This third workshop on Singular Value Decomposition and Signal Processing
is a continuation of two previous workshops of the same name which were
held in Les Houches, France, September 1987, and Kingston, Rhode Island,
U.S.A., June 1990.

The Workshop will be held in the Arenberg Castle of the Katholieke
Universiteit Leuven. Leuven is located in the centre of Belgium, only
30 km from Brussels and 20 km from Brussels International Airport.

Bart De Moor Katholieke Universiteit Leuven, Belgium
Marc Moonen Katholieke Universiteit Leuven, Belgium

Annie Cuyt Universiteit Antwerpen, Belgium
Pieter De Groen Vrije Universiteit Brussel, Belgium
Ed Deprettere Delft University of Technology, The Netherlands
Gene Golub Stanford University, U.S.A.
Sven Hammarling Numerical Algorithms Group Ltd, U.K.
Franklin Luk Chinese University of Hong Kong, Hong Kong
Paul Van Dooren University of Illinois at Urbana-Champaign, U.S.A.
Luc Wuytack Universiteit Antwerpen, Belgium

The workshop is partly sponsored by the European Association for Signal
Processing (EURASIP), and the Belgian National Fund for Scientific Research
(NFWO), and is organized in cooperation with the IEEE Benelux Signal
Processing Chapter and the IEEE Benelux Circuits and Systems Chapter.

The technical program includes 1 hour invited papers, as well as
contributed papers, presented in oral sessions (20 mins per paper),
and poster sessions (with 10 mins oral introduction per paper).


SVD Algorithms :
real-time and adaptive algorithms, continuous algorithms,
complexity, accuracy, convergence,
related decompositions, tensor SVD

SVD Architectures :
application specific hardware, parallel implementation

SVD Applications :
array signal processing, model identification,
model reduction, spectrum analysis, harmonic retrieval,
speech and image processing, control

Invited Speakers:

D. Sorensen Rice University, U.S.A.
B. De Moor Katholieke Universiteit Leuven, Belgium
U. Helmke University of Regensburg, Germany
N.T. Thao Hong Kong University of Science and Technology, Hong Kong


The full advance program, registration form and hotel booking form are
available via anonymous ftp.

ftp address: (
directory: /pub/SISTA/publications
files: svdsp_registration.Z (compressed ascii) (compressed PostScript)

For further information, contact the workshop secretariat:

Lieven De Lathauwer
Department of Electrical Engineering - ESAT
Katholieke Universiteit Leuven
K. Mercierlaan 94, B-3001 Leuven, Belgium
tel: +32 16 220931, fax: +32 16 221855

3rd International Workshop on
Algorithms and Parallel VLSI Architectures
August 29-31, 1994
Leuven - Belgium

This third workshop on Algorithms and Parallel VLSI Architectures addresses
novel research in the area of highly parallel systems, focused on algorithms,
architectures as well as design methodologies and compilation. Both custom
realisation and programmable processor realisation are included.

It is a continuation of two previous workshops of the same name which
were held in Pont-a-Mousson, France, June 1990, and Bonas, France,
June 1991.

The Workshop will be held in the Arenberg Castle of the Katholieke
Universiteit Leuven. Leuven is located in the centre of Belgium, only
30 km from Brussels and 20 km from Brussels International Airport.


Chairmen: Marc Moonen Katholieke Universiteit Leuven, Belgium
Francky Catthoor IMEC, Belgium

Members: Ed Deprettere Delft University of Technology, The Netherlands
Patrick Dewilde Delft University of Technology, The Netherlands
Patrice Quinton INRIA/IRISA, France
Yves Robert ENS Lyon, France
Lothar Thiele Universitat des Saarlandes
Joos Vandewalle Katholieke Universiteit Leuven, Belgium

The workshop is partly sponsored by the EC (BRA project 6632), the
European Association for Signal Processing (EURASIP), and the Belgian
National Fund for Scientific Research (NFWO), and is organized in
cooperation with the IEEE Benelux Signal Processing Chapter, the IEEE
Benelux Circuits and Systems Chapter, and INRIA, France.


The technical program includes 1 hour invited papers, as well as
contributed papers, presented in regular presentation sessions (20
mins per paper) and short presentation sessions (10 mins per paper).
For all contributed papers, additional poster sessions will be organized.

Parallel Algorithms :
linear and multilinear algebra, filtering and transforms,
for sonar and radar, digital audio, image and video,
communications, computer graphics, automatic control

Keynote Speaker: P.A. Regalia ENST, France

Parallel Architectures :
arrays, programmable SIMD and MIMD architectures

Keynote Speaker: K. Vissers Philips, The Netherlands

Parallel Compilation :
design methodologies, automated architecture synthesis,
parallelisation techniques

Keynote Speaker: P. Feautrier PriSM-CNRS, France


The full advance program, registration form and hotel booking form are
available via anonymous ftp.

ftp address: (
directory: /pub/SISTA/publications
files: palgar_registration.Z (compressed ascii) (compressed PostScript)

For further information, contact the workshop secretariat:

Filiep Vanpoucke
Department of Electrical Engineering - ESAT
Katholieke Universiteit Leuven
K. Mercierlaan 94, B-3001 Heverlee, Belgium
tel: +32 16 220931, fax: +32 16 221855


From: Andreas Frommer <>
Date: Fri, 3 Jun 94 09:18:08 +0200
Subject: Workshop on Large Systems of Equations


October 6/7, 1994
at the
University of Wuppertal (Germany)

Topics: Theoretical and practical aspects of iterative methods for the
efficient parallel solution of large systems of equations.
Special emphasis will be put on new results from numerical analysis
and on problems and methodologies arising in scientific applications.


Languages, Tools and Software:
- G. Bhanot (Princeton): Multigrid, HPF and MPPs - Advantages and Pitfalls
- J. Dongarra (Knoxville): Constructing Numerical Software and Algorithms
for Scalable High-Performance Computers
Numerical Linear Algebra:
- D. Braess (Bochum): Parallele Vorkonditionierer fuer CG-Verfahren
(Parallel Preconditioners for CG Methods)
- M. Eiermann (Freiberg): Adaptive Vorkonditionierer fuer nicht-symmetrische
(Adaptive Preconditioners for Nonsymmetric
Krylov Subspace Methods)
- R. Freund (Murray Hill): Krylov-Unterraumverfahren zur Loesung
grosser komplexer nicht-Hermitescher
linearer Gleichungssysteme
(Krylov Subspace Methods for Large Complex
Nonhermitian Linear Systems)
- W. Niethammer (Karlsruhe): Iterationsverfahren auf der MASPAR
(Iterative Methods on the MASPAR)
- H. van der Vorst (Utrecht): Iterative Methods for Nonsymmetric Systems

Partial Differential Equations:
- H. Blum (Dortmund): Ansaetze zur Parallelisierung bei der
numerischen Behandlung partieller
Differentialgleichungen - ein Ueberblick
(Techniques for the Parallel Numerical Solution of
Partial Differential Equations - An Overview)
- R. Rannacher (Heidelberg): Gebietszerlegungstechniken fuer
zeitabhaengige Probleme
(Domain Decomposition Techniques for
Time-dependent Problems)
- E. Rank (Dortmund): Gittergasautomaten zur Loesung instationaerer
(Lattice Gas Methods for Transient Flow Problems)

Problems from Chemistry and Physics:
- A. Frommer (Wuppertal): Symmetrische vs. unsymmetrische
Iterationen fuer Probleme der QCD
(Symmetric vs. Nonsymmetric Iterations for
Problems in QCD)
- G. Mack (Hamburg): Mehrgitterverfahren fuer ungeordnete Systeme
(Multigrid Methods for Non-ordered Systems)
- K. Schilling (Wuppertal): Die "Grand Challenges" der Quantenchromodynamik
(The Grand Challenges in QCD)
- W. Thiel (Zuerich): Quantenchemische semiempirische
Untersuchungen auf Parallelrechnern
(Quantum Chemical Semi-empirical Methods on
Parallel Computers)

Workshop starts : Thursday, Oct 6, 1994, at 9 am
and ends : Friday, Oct 7, 1994, at 6 pm

Registration deadline : June 30, 1994

More information (registration form etc.) via email:
Please give your full postal address.

Organisation : Prof. Dr. Andreas Frommer
Fachbereich Mathematik und
Institut fuer Angewandte Informatik
Bergische Universitaet - Gesamthochschule Wuppertal
Gauss-Strasse 20
42097 Wuppertal

Tel.: +49 202 439 2979, Fax: +49 202 439 2853


From: Ramon Harps <>
Date: Thu, 2 Jun 1994 13:40:06 +0200
Subject: ICIAM 95, Congress Announcement


July 3 - 7, 1995

The congress organizers are developing a programme that will focus
worldwide attention on the importance of mathematical and computational
methods in the solution of real world problems. A major exposition of
computer hardware and software exhibits and demonstations will enable
you to explore state-of-the-art technology.

In addition to a programme highlighting important advances in research
and applications, there will be many opportunities for you to meet your
colleagues from other countries.

The first International Congress on Industrial and Applied Mathematics
was held 1987 in Paris. ICIAM 87 attracted eighteen hundred scientists
from applied and computational mathematics and applied sciences. This
number climbed to over two thousand at ICIAM 91 in Washington, DC.

ICIAM 95 will be hosted by GAMM.

ICIAM 95 President is Oskar Mahrenholtz,
Technical University Hamburg-Harburg


Klaus W. Kirchgaessner, Chair, Universitaet Stuttgart
Petter Bjorstad, University of Bergen
Cai Dayong, Tsinghua University, Beijing
John Chadam, McMaster University, Hamilton
Julio Claeyssen, Fed. Univ. of Rio Grande, Porto Alegre
Heinz W. Engl, Johannes-Kepler-Universitaet Linz
Gene H. Golup, Stanford University, Stanford
Julian C. R. Hunt, Metereological Office, Bracknell
Iri Masao, University of Tokyo
Nancy J. Kopell, Boston University
Pierre-Louis Lions, Universite de Pauris Dauphine, Paris
Jean Claude Nedelec, Ecole Polytechnique, Palaiseau
John R. Ockendon, University of Oxford
Etienne Pardoux, Universite de Provence, Marseille
Mario Primicerio, Universita di Firenze
Alberto Tesei, Universita di Roma "La Sapienza"


C. William Gear, Chair, NEC Research Institute Princeton, New Jersey

and the delegates form the Member Societies:


The programme consists of invited and contributed lectures, minisym-
posia, poster presentations, and an exhibition.

The presentations are solicited in all areas of applied mathematics,
computer science, applied probability and statistics, scientific
computing, and applications in science, medicine, engineering, economics
and other related fields.


Akaike, H. (Tokyo) | Meyer, G. (NASA, California)
Arnold, V. I. (Moskau, Paris) | Mumford, D. (Cambridge)
Baccelli, F. (INRIA, Valbonne) | Murota, K. (Kyoto)
Berry, M. V. (Bristol) | Neunzert, H. (Kaiserslautern)
Brezis, H. (Paris) | Nilsson, L. G. (Linkoeping)
Cercignani, C. (Mailand) | Pfeiffer, F. (Muenchen)
Daubechies, I. (New Jersey) | Perelson, A. (Los Alamos)
Degond, P. (Toulouse) | Peskin, C. (Ney York)
Foellmer, H. (Bonn) | Quarteroni, A. (Mailand)
Hasselmann, K. (Hamburg) | Rannacher, R. (Heidelberg)
Hinch, E. J. (Cambridge) | Sivashinski, G. (Tel Aviv)
James, R. (Minneapolis) | Taylor, A. (Oxford)
Kahan, W. (Berkeley) | Trefethen, L. (Ithaka, NY)
Keller, J. B. (Stanford) | Van Dooren, P. (Urbana)
Lions, J. L. (Paris) | Ward, M. (Vancouver, BC)
Marsden, J. (Berkley) |


Aircraft Flight Control | Mathematics and High Technology
Applications of AIC in Industrial | Mathematics in Industry
Technologies | Mechanics and Asymptotics
Combustion and Nonlinear Diffusion | Mechanics, Control
Computational Contact-Impact | Modelisation of Semiconductors
Analysis | Phase Transitions
Computer Science | Queues and Networks
Fluid Dynamics of Elastic Liquids | Rarefield Gasdynamics, Boltzmann
Fluid Mechanics and Applications | Equation
Global Climate Modelling | Robotics
Image Processing | Signals, Systems, Control
Kinetic Theory | Stochastic Discrete Event Systems
Liquid Crystals | Structure and Dynamic of Wrinkled Flames
Mathematical Basis of Mechanics | Sytems Analysis by Graphs and Matroids
Mathematical Biology | Vortex Flow, Computational Fluid Dynamics
Mathematical Finance | Wavelets
Mathematical Physiology |


A minisymposia is a session of speakers focusing on a single topic. The
organizer of a minisympoisium invites the speakers and decides on the
topic they are to deliver. If you would like to organize a minisym-
posium, you must submit a proposal on an ICIAM 95 minisymposium form.

To obtain a form and guidelines for submitting a minisymposium proposal,
please send a message to:
Fax: +49-941-943-4005

Deadline date for submission of minisymposium proposals: August 31, 1994


You are invited to submit a paper, which you may present in lecture or
poster format. Authors will have approximately 15 minutes for the
lecture, with additional 5 minutes for discussion. Alternatively they
may elect poster presentations, which allow interactive discussions with
individuals interested in their work.

If you like to present a paper (lecture or poster format), please submit
a summary on an ICIAM 95 contributed paper form.

To obtain a form and guidelines for submitting a paper, please send a
message to:
Fax: +49-941-943-4005

Deadline date for submission of abstracts: September 30, 1994


For further information, please contact

University of Regensburg, NWF I - Mathematik
D-93053 Regensburg, Germany

Phone: +49-941-943-4918
Fax: +49-941-943-4005

Minisymposium proposal August 31, 1994
Contributed presentation proposal September 30, 1994


From: Jocelyne Erhel <>
Date: Wed, 1 Jun 1994 10:34:17 +0200
Subject: Postdoc Position at INRIA

Scientific computing group
Rennes, France

Applications are called for a post-doctoral position at INRIA/IRISA
in parallel scientific computing. The position will be open
in September 1994 for 10 months.

This award is funded by a european grant (Human Capital and Mobility)
and is available ONLY for CITIZENS from the EUROPEAN COMMUNITY (CEE)
who are NOT FRENCH.
Applicants must have a Ph-D in Applied Mathematics, Computer Science
or a related field.

IRISA is a joint institute of INRIA-Rennes (the head is at Rocquencourt),
CNRS (associated laboratory), the University
(Computer Science department) and INSA (Computer Science department).
The group called "Advanced Algorithms for Scientific Computing"
studies numerical algorithms which should be both parallel and
numerically reliable. The domains of interest cover linear algebra
on sparse matrices and differential equations. Of special concern
are the projection methods using Krylov subspaces.
The algorithms are applied to large numerical simulations as
for example Computational Fluid Dynamics. The project is also
interested in programming environments for scientific computing.
The team is leaded by B. Philippe and is composed of about
10 persons.

The HCM contract is coordinated by the CERFACS (Toulouse, France)
and involves 9 institutes from France, Italy, GB, Switzerland,
Belgium, Sweden. It is entitled
"A modular approach to research in computational fluid dynamics,
iterative methods and high performance computing."
The IRISA (INRIA-Rennes) part is devoted to the application
of the Newton-GMRES algorithm to discretisations of the steady
Navier-Stokes equations as well as to implicit time-stepping
schemes. The procedure can be seen as an approximate Newton
algorithm which is matrix-free.

The candidate selected will work on this subject and related issues.

Salary : 14,764 French Francs per month (out of charges).

Applicants should send their CV, the names of 2 referees and a
brief description of research interests.
Applications will be considered until 15 JUIN 1994, along with
already received applications.
Electronic submission is preferred. Letters should be addressed to

Jocelyne Erhel
Campus de Beaulieu
35042 Rennes Cedex
e-mail :
tel : (33) 99 84 73 39
fax : (33) 99 84 71 71


From: Eduardo Sontag <>
Date: Fri, 3 Jun 94 17:15:48 EDT
Subject: Contents, Math of Control, Signals and Systems


T. Georgiou and M.C. Smith,
Graphs, causality and stabilizability: linear, shift-invariant systems on
L2[0,infty), pp. 195-223.

R. Chabour, G. Sallet, and J.C. Vivalda,
Stabilization of nonlinear two dimensional systems: a bilinear approach,
pp. 224-246.

A. Feintuch,
Robustness for time varying systems, pp. 247-263.

U. Oberst,
On the minimal number of trajectories determining a multidimensional system,
pp. 264-288.


End of NA Digest

Subject: Addendum to V. 94, # 23

Hi all--

The NA Digest we sent out yesterday started off with a note about
SIAM's Ed Block, who is in the hospital. The SIAM office has
asked that we NOT call Ed at the number given in the note.
They say Ed would be very pleased to hear from all of his friends,
but only in writing for now.

Sorry, Ed. Get well soon. Hope to see you in San Diego next month.

-- Cleve Moler and the rest of the NA Net guys.