NA Digest Sunday, December 7, 1997 Volume 97 : Issue 49

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

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URL for the World Wide Web:

From: Jacques de <>
Date: Tue, 2 Dec 1997 16:55:58 +0100 (MET)
Subject: Parallel Software for Implicit Differential Equations

Parallel Software for Implicit Differential Equations Available

PSIDE - Parallel Software for Implicit Differential Equations -
is a Fortran 77 code for solving problems of the form

g(t,y,y')=0, t_0 < t < t_end, y_0, y'_0 are given in t_0.

The code is developed for shared memory parallel computers, but
also runs on single processor machines.

PSIDE is based on a four-stage Runge-Kutta method of order 7, and
can solve higher-index problems as well. Comparisons on a wide
range of test problems show that the factor, by which PSIDE on
four processors is more efficient than RADAU5, VODE and DASSL on
one processors, varies from 1.5 to 3.8, depending on problem and
solver (and it will of course depend on the machine as well).

The code, users' guide, specification and example drivers are
available at

Any report on experiences with the code are gratefully accepted
by the authors

Jacques de Swart, Walter Lioen, and Wolter van der Veen
Centre for Mathematics and Computer Science (CWI)
Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
e-mail:,, or


From: Adhemar Bultheel <>
Date: Wed, 3 Dec 1997 14:51:32 +0100 (MET)
Subject: New Book on Linear Algebra, Approximation and Polynomials

New Book: "Linear Algebra, Rational Approximation and Orthogonal Polynomials"
by A. Bultheel and M. Van Barel (Dept. Computer Sc., K.U.Leuven, Belgium)
Studies in Computational Mathematics 6, Elsevier/North-Holland, Amsterdam,
December 1997, xvii+446 pages, ISBN 0-444-82872-9.

Table of contents

Euclidean fugues
Linear algebra of Hankels
Lanczos algorithm
Orthogonal polynomials
Pad'e approximation
Linear systems
General rational interpolation


From: Emily Todd <>
Date: Mon, 01 Dec 1997 10:49:57 -0500
Subject: Workshop on Computational Aerosciences

Workshop on Computational Aerosciences in the 21st Century

The subject conference scheduled for January 21-23, 1998 has been
changed to April 22-24, 1998.
Further information may be found at the Website:


From: Trini Flores <>
Date: Wed, 03 Dec 97 08:55:45 -0500
Subject: SIAM Meetings


1998 SIAM Annual Meeting
July 13-17, 1998
University of Toronto, Toronto, Canada

December 15, 1997: Deadline for submission of minisymposium proposals
January 15, 1998: Deadline for submission of contributed abstracts

1998 SIAM Conference on Discrete Mathematics
July 12-15, 1998
University of Toronto, Toronto, Canada

January 2, 1998: Deadline for submission of contributed abstracts

For more information, visit or contact
SIAM by e-mail


From: Jim Varah <>
Date: Mon, 1 Dec 1997 13:56:47 UTC-0800
Subject: 1999 Householder Symposium

The 14th Householder Symposium on Numerical Linear Algebra will be
held June 14-18, 1999 at the Chateau Whistler, Whistler B.C., Canada,
about 2 hours drive north of Vancouver. A description of the
Symposium, its origins, and its operation is appended. Information
regarding the meeting is available from the website:
This website is the primary source of information for the meeting,
and will be updated periodically. At a later time we will announce
dates for submitting applications.

Jim Varah
(Local arrangements)
Pete Stewart
(Program committee)

The Householder Symposia

The Householder Symposia originated in a series of meetings organized
by Alston Householder, Director of the Mathematics Division of Oak
Ridge National Laboratory and Ford Professor at the University of
Tennessee. These international meetings were devoted to matrix
computations and linear algebra and were held every three years at
Gatlinburg, Tennessee. They had a profound influence on the subject.

The last ``Gatlinburg'' conference was held in 1969 on the occasion of
Householder's retirement. At the time it was decided to continue the
meetings but vary the place. Since then meetings have been held at
three year intervals at Los Alamos, USA; Hopfen am See, Germany;
Asilomar, USA; Oxford, England; Waterloo, Canada; Fairfield Glade, USA;
Tylosand, Sweden; Lake Arrowhead, USA; and Pontresina, Switzerland.

The meetings, which last for five days, are restricted to about 125
people. They are intensive, with plenary talks in the day and special
sessions in the evenings. To encourage people to talk about work in
progress, no proceedings are published, although extended abstracts
are circulated.

The conferences are run in tandem by a permanent organizing committee
and a local arrangements committee. Although attendance is
restricted, anyone--including students--can apply. Selection is made
by ballot of the organizing committee on extended abstracts submitted
by the candidates.

The meeting is also the occasion for the award of the Householder prize
for the best thesis in numerical linear algebra. This prize is entirely
supported by contributions solicited at the Symposium banquet.


From: David Griffiths <>
Date: Tue, 2 Dec 1997 16:25:19 GMT
Subject: 1999 Dundee Biennial Conference


29th June - 2nd July 1999

Details will be posted, as they become available, at the web site

Participants at recent Dundee conferences will automatically be
sent details, others should contact the organisers by email, through
the web site or by writing to

Dr D F Griffiths
Biennial Conference on Numerical Analysis
Department of Mathematics
The University, Dundee, DD1 4HN
Scotland, UK

Tel: +44 (1382) 344467 e-mail:
FAX: +44 (1382) 345516 or:

It is anticipated that the proceedings of the 1997 conference will be
published later this month.


From: Randall Bramley <>
Date: Sun, 30 Nov 1997 09:20:41 -0500 (EST)
Subject: ACM Conference on Supercomputing

Sponsored by ACM/SIGARCH
13 - 17 July 1998


General Chairs: Greg Egan, Monash University &
Richard Brent, Oxford University, UK
Program Chair: Dennis Gannon, Indiana University
Vice Program Chair - Applications:
Ulrich Trottenberg, German National Research Center for Information
Vice Program Chair - Software:
Yoichi Muraoka, Waseda University
Vice Program Chair - Architecture:
Yale Patt, University of Michigan

Finance Chair: Andrew Wendelborn, University of Adelaide
Local Arrangements Chair: Maureen Kemp, Monash University
Workshop Chair: Randall Bramley, Indiana University
Exhibition Chair: Irene Thavarajah, Monash University
Publicity Chair: Lorraine Curtis, Monash University

The ACM International Conference on Supercomputing is a forum for engineers
and scientists throughout the world to exchange ideas and research results
relating to high performance supercomputing systems. The 12th Conference in
the series, ICS'98, will be held in Melbourne, Australia, in July, 1998.

The conference will include an exhibition and a number of special sessions,
panels and workshops whose details will be announced separately. The main
focus of ICS'98 will be high performance and parallel computing systems
viewed from the three perspectives of applications, software and
architectures. Papers describing significant new research results and
experience in the development and application of supercomputing systems
are solicited. The Conference Proceedings will be published by ACM Press.
A prize will be awarded to the best student paper submitted in each of the
three technical areas.

Topics of interest include, but are not restricted to, the following:

o Large-scale applications and parallel algorithms;
o New experimental and commercial systems;
o Program development tools;
o Programming languages and optimizing compilers;
o Operating systems and systems support software;
o Parallel, multithreaded and high performance computer architectures;
o Performance modeling and evaluation;
o Computing in heterogeneous systems.

Possible workshop topics include:

o Metacomputing and high performance, wide area networks;
o Cluster computing technology;
o Problem solving environments;
o Processor-in-memory systems.
o In memory computing


Authors should submit papers (around 6,000 words maximum), preferably
by e-mail in PostScript format or on paper (5 copies), to the Office
of the Program Chair:

Dennis Gannon
Department of Computer Science
Indiana University
Bloomington IN 47401
phone: +1 812 855 4510


Deadline for Papers : 1 Feb 1998
Registration (Regular fees) : 1 March 1998
Notification of Acceptance : 10 March 1998
Camera ready manuscripts due: 14 April 1998 (papers from author)


Irene Thavarajah
Monash University
Phone +61 3 9905 1344, Fax +61 3 9905 1343


From: Per L|tstedt <>
Date: Tue, 2 Dec 1997 17:42:29 +0100 (MET)
Subject: Workshop on Adaptive Methods for Differential Equations

Royal Institute of Technology, Stockholm, Sweden,
March 30-April 1 1998

Organized by Chalmers Finite Element Center,
Parallel and Scientific Computing Institute and
The Mittag-Leffler Institute.

Adaptive computational methods are opening new possibilities
for accurate simulation of complex systems in science and engineering
modeled by differential equations, including phenomena of solid and
fluid mechanics, electromagnetics, chemical reactions and molecular
dynamics. Adaptive methods include optimization procedures based on
computational feed-back, aiming at reliable quantitative control of both
computational and modeling errors with efficient use of computational
resources. The purpose of the workshop is to bring together researchers
working on different aspects of adaptive methods for differential
equations including mathematical basis, solvers and applications.

The workshop is organized in connection with the year on
Numerical Analysis 97/98 at the Mittag-Leffler Institute and
the special program on Adaptive Methods in March and April 1998. The
organizers are Bertil Gustafsson (Uppsala Univ), Claes Johnson
(Chalmers), Per Lotstedt (Uppsala Univ) and Anders Szepessy
(Royal Institute).

Invited participants include: Scott Baden (San Diego),
Franco Brezzi (Pavia), Don Estep (Georgia Tech), Bill Henshaw
(Los Alamos), Tom Hughes (Stanford), Lee Jameson (Hawaii),
David Keyes (Norfolk), Mats Larson (Minneapolis),
Donnatella Marini (Pavia), Jean-Claude Nedelec (Paris),
Ken Powell (Ann Arbor), Rolf Rannacher (Heidelberg),
Ridgway Scott (Houston), Gustaf Soderlind (Lund), Endre Suli (Oxford),
Rudiger Verfurth (Bochum).

Call for papers: Participants wanting to give a talk (20 min)
should submit an abstract before February 1, 1998. Notification
of acceptance will be given on February 15, 1998.

All participants should register before February 15, 1998.

All correspondence in connection with the workshop, including
registration and submission of abstracts, is to be made via e-mail
on address:

Visit the homepage on
where more information on hotel reservation and transportation is


From: Zhongxiao Jia <>
Date: Wed, 03 Dec 1997 08:20:24 -0800
Subject: Symposium on Large Scale Matrix Computations

International Symposium on Theory and Algorithms
for Large Scale Matrix Problems
Dalian University of Technology, Dalian, China
August 2-5, 1998

Sponsored by the National Education Commission of China, the National
Natural Science Foundation of China and the Dalian University of
Technology, we are intending to organize an ``International Symposium
on Theory and Algorithms for Large Scale Matrix Problems'', which will
be held during August 2-5, 1998 at the Dalian University of Technology,
China. The aim of the symposium is to bring together researchers on the
topics below to exchange ideas and discuss latest developments and results
on them. The conference will focus on nonsymmetric (non-Hermitian) problems
and iterative methods for them.

1. Arnoldi and block Arnoldi type methods for eigenproblems;
2. Davidson and Jacobi-Davidson type methods for eigenproblems;
3. Lanczos and block Lanczos type methods for eigenproblems;
4. Other projection type methods such as subspace iteration for
5. Conjugate gradient and Krylov subspace type methods for linear systems;
6. Various iterative methods for least squares problems;
7. Various preconditioned techniques for the above three kinds of problems;
8. Applications to scientific and engineering computations.
9. All other topics in numerical linear algebra and scientific computing
as well as related disciplines.

Dayong Cai (Tsinghua University, CHINA)
Zhihao Cao (Fudan University, CHINA)
Jane Cullum (IBM, US)
Iain S. Duff (tentative, the Rutherford Appleton Laboratory, UK)
Roland W. Freund (Bell Laboratories, US)
Martin H. Gutknecht (Swiss Center for Scientific Computing, SWITHERLAND)
Zhongxiao Jia (Dalian University of Technology, CHINA)
Erxiong Jiang (Fudan University, CHINA)
Andrew Knyazev (tentative, Colorado University at Denver, US)
Axel Ruhe (tentative, Chalmers University of Technology,
Lothar Reichel (Kent State University, US)
Yousef Saad (Minnesota University, US)
Danny Sorensen (Rice University, US)
Kim Chuan Toh (National University of Singapore, SINGAPORE)
Henk A. van der Vorst (Utrecht University, THE NETHERLANDS)
Qiang Ye (Manitoba University, CANADA)

Persons who wish to attend the symposium must contact Prof. Z. Jia at
the address below BEFORE APRIL 15, 1998.

Professor Zhongxiao Jia
Department of Applied Mathematics
Dalian University of Technology
Dalian 116024, P.R. CHINA
TEL: +86-411-4709559
FAX: +86-411-4671009 (Header must be the Department of Applied Mathematics)

April 20, 1998: Deadline for acceptance of participation and submission
of extended abstract no more than 4 pages and of its latex
April 25, 1998: Deadline for sending out invitation letters for Chinese
May 10, 1998: Deadline for submission of a hard copy of the full paper
and of its latex file.
August 2-5, 1998: Symposium.


From: Ewald Quak <>
Date: Wed, 03 Dec 1997 13:05:09 +0100
Subject: Modern Software Tools for Scientific Computing

International Workshop
Modern Software Tools for
Scientific Computing
September 14-16 1998
Holmenkollen Park Hotel
Oslo, Norway

The SciTools'98 workshop is organized jointly by
SINTEF Applied Mathematics (,
Numerical Objects AS ( and the
University of Oslo (

Its aim is to put a focus on modern state-of-the-art software
techniques applied to challenging numerical problems.

To highlight recent work in this direction, we are pleased to feature
invited presentations by

* Eric Grosse, Lucent Technologies (USA)
* William Lorensen, General Electric (USA)
* Jean-Francois Puget, ILOG (France)
* Todd Veldhuizen, University of Waterloo (Canada)
* Nicholas Zabaras, Cornell University (USA)

In addition, we welcome the submission of contributed talks (25 minutes)
from academia as well as industry.

The scope of the workshop includes (but is not limited to)

* object-oriented design and implementation
* high-level environments for numerical problem solving
* prototyping of new applications
* parallel computations
* efficiency considerations
* code robustness

and other aspects that concern the transition of basic research into software
that is applicable to real-life problems.

It is expected to publish a book, based on selected, refereed contributions
from the workshop, similar to the one for the first three-day workshop
of this kind, SciTools'96 (

"Modern Software Tools for Scientific Computing", E.Arge, A.M.Bruaset,
and H.P.Langtangen (editors), Birkhauser 1997.

Birkhauser has already indicated interest in a new publication for
SciTools'98. For further information concerning the workshop, especially the
procedures for registration and submission of abstracts, see the web page

Any email correspondence concerning the workshop should be sent to

Contact address:

Ewald Quak
SINTEF Applied Mathematics
P.O.Box 124
N-0314 Oslo, Norway

The organizing committee consists of

Erlend Arge
Are Magnus Bruaset
Morten Daehlen
Hans Petter Langtangen
Ewald Quak
Aslak Tveito


From: ICNMFD <>
Date: Wed, 03 Dec 1997 16:16:27 WET
Subject: Conference on Numerical Methods in Fluid Dynamics

16th International Conference on Numerical Methods in Fluid Dynamics (ICNMFD)

The 16th International Conference on Numerical Methods in Fluid Dynamics
(ICNMFD) is backed by an International Committee whose members are well-known
specialists from all over the world. A tentative list of topics which should
be able to gather the CFD community is the following :
Appoximation and numerical methods for Fluid Dynamics
(solvers, accurate schemes, solution procedures, etc.) ;
Numerical simulations of compressible and incompressible ,
steady and unsteady flows ;
Modeling and transition to turbulence ;
Coupling of equations, multiphase flows, reactive flows,
combustion problems ;
Computation techniques on supercomputers (parallel algorithms,
multidomain techniques, multigrid, mesh adaptation, etc.).

For each topic, the contributions will range from the academic considerations
to industrial approaches. There will be invited talks, plenary sessions,
parallel sessions and posters. The talks will be selected by the
International Committee. The five morning sessions will be devoted to
invited talks and plenary sessions. The other communications will be
given during the afternoon sessions, except wednesday.

Invited Speakers

Compressible flows:
R. Radespiel, DLR, Braunschweig, Germany
Mathematical aspects :
B. Perthame, Institut Universitaire de France
Multiphase flows :
T. Yabe, Tokyo Institute of Technology, Japan
Numerical methods:
M. Berger, Courant Institute of Mathematical Sciences, New York, USA
F. Hussain, Department of Mechanical Engineering, Houston, USA

Check our Web pages:


From: Lutz Laemmer <>
Date: Wed, 03 Dec 1997 17:55:07 +0000
Subject: Parallel and Distributed Computing for Computational Mechanics

4TH-9TH APRIL 1998

(Funding available for young EU researchers.)

This is the second in a short series of Euro-conferences, concerned
with Parallel and Distributed Computing for Computational Mechanics,
funded by the European Commission through a contract with Civil-Comp
Limited, Edinburgh, UK. This conference is primarily concerned
with the solution of linear, non-linear and interaction problems. The
third conference, to be held in Germany during April 1999, is concerned
with parallel and distributed processing for optimization and design.

The themes of the 1998 conference particularly include: linear and
non-linear analysis; static and dynamic analysis; domain decomposition
including initial and dynamic load balancing; interaction and contact
problems; remeshing and adaptive problems; development tools for
parallelisation, message passing, etc.

The Euro-Conference will consist of a series of lectures and short
research presentations. A list of lecturers will be announced in
the near future.

Funding and Fees

The fee for the Euro-Conference is 145 UK pounds. EU funding
is available for researchers, under 35 years working within
the European Union and of European Union nationality (including
the associated states of Norway, Liechtenstein and Iceland).
Potential participants should contact:

Professor Barry H.V. Topping
Dept of Mechanical Eng, Heriot-Watt University
Riccarton, Edinburgh, EH14 4AS, UK
Tel: 44(0)131 332 1020 Fax: 44(0)131 332 3060

The research presentations from the First Euro-Conference were published
in "Advances in Computational Mechanics for Parallel and Distributed
Processing" Edited B.H.V. Topping, Civil-Comp Press, Edinburgh 1997.
The lectures will be published in "Parallel and Distributed Processing
for Computational Mechanics: Systems and Tools", Saxe-Coburg Publications,
Edinburgh, 1997. For further details of these publications see the web site

Participants for the 1999 Euro-Conference
should contact Professor Barry Topping after May 1st 1998.


From: IMACS ACA'98 <>
Date: Thu, 4 Dec 1997 12:27:58 +0100 (MET)
Subject: IMACS Conference on Applications of Computer Algebra


I M A C S - A C A ' 9 8

The Fourth International IMACS Conference
on Applications of Computer Algebra
(IMACS = International Association for Mathematics and Computers in

August 9-11, 1998
Czech Technical University
Prague, Czech Republic

Just before ISSAC'98, August 13-15, Rostock, Germany.
( )

General Chair:
Richard Liska (

Program Chairs:
Victor Edneral (,
Wolfgang Kchlin (

Organizing Committee:
Stanly Steinberg, Michael Wester

Local Arrangements:
Jiri Limpouch, Milan Sinor, Faculty of Nuclear Sciences and Physical
Engineering, Czech Technical University

The meeting will focus on actual or possible applications of nontrivial
computer algebra techniques to other fields and substantial interactions
of computer algebra with other fields.

Meeting Format:

The meeting will be run in the standard IMACS format where individuals
are invited to organize a special session. Individuals can propose a
special session by contacting the program chairs. All paper submissions
must be directed to an organizer of an appropriate special session,
which will be listed at the web sites.

List of Sessions: (preliminary)
Mechanics ODEs Problem Solving Environments
High Energy Physics PDEs and Symmetries Symbolic-numeric Interfaces
General Relativity Hamiltonian Systems Seminumerical Methods
Robotics Geometry Automatic Differentiation
Control Theory Grand Challenges Interval Arithmetic
Industrial Applications Software Integration Education

More Information: (or the US mirror or send e-mail


From: (Issam Moghrabi)
Date: Fri, 5 Dec 1997 11:56:15 +0200
Subject: Statistics, Informatics, Planning and Development

The Arab Scientific Conference on Statistics, Informatics, Planning and
Development (SIPD 98)
Beirut- Lebanon 14-16 April 1998

Under the Patronage of the President
of the Lebanese Republic
Mr. President Elias HRAWI

Honorary Lecturer
Ex-President Ahmed BEN BELLA

Slogan of conference: What have we stored from the 20th century? And how are
we preparing to 21st?

Organiser: MAA-DATA (Statistical Centre), in collaboration with local and
international Universities and Organisations.

Language: Arabic and others, with instantaneous translation.

Participation: $200/person. Academics and lecturers gratis. Accommodation
not included.

Deadline for submitting papers: 1 month before conference for
presentation of papers.

For more Information:



From: Khodor Khadra <>
Date: Thu, 04 Dec 1997 10:42:10 MET
Subject: Faculty Position at University of Bordeaux


The University of Bordeaux 1 has ranked in first position a request for
the creation of an open position for a professor in section 26 with the
profile Operational Research and Optimization. This open position should
be offered to the mutation and to the recruitment during the 1998 campaign.


The candidate must be able to animate researches in continuous and
discrete optimization, programmation in integer numbers, control of
determinist and stochastic systems. Both theorical and numerical knowledges
are necessary. The candidate must develop industrial contacts.


The candidate will have to participate strongly in the teachings of the
Stochastic Modeling and Operational Research DESS which was created two
years ago. He will also have to involve in the organization of the DESS.
Moreover, he could be required for teaching Applied Mathematics in other


The new professor will be a member of the Bordeaux Applied Mathematics
laboratory linked to the Univerities of Bordeaux 1 and 2 and the CNRS. His
task will be to intensify the researches on the themes mentioned above.

You can get information by our Web pages :

For any further information, please contact Claude-Michel BRAUNER
Mathematiques Appliquees de Bordeaux, Universite Bordeaux I
351 cours de la Liberation, 33405 Talence cedex, France.


From: Simona Lilliu <>
Date: Fri, 5 Dec 1997 17:58:03 +0100
Subject: Director Position at CRS4, Sardinia

DIRECTOR, Division of Scientific Research

CRS4 (Center for Advanced Studies, Research and Development in Sardinia) is
seeking an outstanding scientific leader to serve as Director of the
Division of Scientific Research.

Located in Cagliari (Sardinia, Italy). CRS4 is an interdisciplinary applied
research center with a staff of over 90 researchers. CRS4's activities are
focused on the development and application of advanced simulation techniques
for large scale computational problems and on the development of innovative
applications in the field of information and communications technology.

The Division of Scientific Research currently has a staff of about 50
researchers working in 6 research Groups:

* Computational Fluid Dynamics
* Waves, Materials, and Structures
* BioMedical Applications
* Combustion and Chemical Processes
* Environment
* Geophysics

The Director of the Scientific Research Division will provide scientific and
professional leadership, managing relations between research staff and top
management and elaborating and implementing research goals and strategies.
The Director will also be responsible for attracting public and private
funding and establishing collaborations with other research laboratories and
industrial partners. The Director will report to the Chief Executive

Applicants must be internationally recognized for scientific achievement,
with demonstrated ability to manage scientific and/or technological
projects, to attract funding for these projects and to collaborate
successfully with industry. Scientific expertise, as evidenced by
publications, must include areas pertinent to the Division of Scientific
Research of CRS4. Applicants' abilities must be commensurate with the role
of Director of a multi-disciplinary division whose activities are centered
around research, training and consulting in the areas of modelling and
scientific computation. Applicants must moreover have excellent knowledge of
recent developments in information technology and computing hardware.

All candidates should submit an application including curriculum vitae,
professional experience and achievements, list of publications and research
grants, and the names, addresses and facsimile numbers of three referees to:

Director of Scientific Division Search Committee,
c/o Filippo Pinna, CRS4
Via Nazario Sauro 10
I-09123 Cagliari, Italy

Applications will be accepted until the position is filled.
Evaluation of candidates will begin immediately.


Date: Tue, 02 Dec 97 13:04:42 +0200
Subject: Postdoctoral Position at the Weizmann Institute

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
September, 1995 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 year and may be
renewed for a second year.

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.


From: Jan Griffin <>
Date: Fri, 05 Dec 1997 10:42:35 -0600
Subject: Postdoctoral Position at Argonne National Laboratory

Mathematics and Computer Science Division
Argonne National Laboratory

The Mathematics and Computer Science Division of Argonne National
Laboratory and the Department of Computer Science of the University of
Chicago invite applications for a joint postdoctoral research position.
The successful candidate will develop numerical and analytical methods for
the Ginzburg-Landau equations. The project is funded by the University of
Chicago/Argonne National Laboratory Collaborative Grants Program. The
appointment will be at The University of Chicago, but the appointee is
expected to spend about equal time at the two institutions.

Candidates must have a Ph.D. in mathematics, physics, or computer science.
A strong interest in computational science and a desire to interact with
physicists and materials scientists are expected.

The Mathematics and Computer Science Division has a vigorous research
program in applied mathematics and computer science, with numerous
opportunities for interactions with scientists from other disciplines. The
computational environment 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 laboratory. For further information, see

Resumes should be addressed to Walter McFall, Box mcs-mathpostdoc,
Employment and Placement, Argonne National Laboratory, 9700 S. Cass Avenue,
Argonne, IL 60439, and must include a resume and the names and addresses of
three references. The position is available immediately; applications will
be accepted until the position is filled. Applications may be submitted
electronically to For further inquiries, contact Hans
Kaper ( or Todd Dupont (

The University of Chicago and Argonne National Laboratory are affirmative
action/equal opportunity employers.


From: Dirk Roose <>
Date: Fri, 5 Dec 1997 23:17:07 +0200
Subject: Research Position at K. U. Leuven

Research position at K.U.Leuven on

The research groups Scientific Computing and Plasma-Astro-Physics at the
K.U.Leuven, Belgium, have an opening for a researcher on the project
'Multi-dimensional upwinding and implicit solvers for Magneto-Hydrodynamics'.

In this project, the two groups at K.U.Leuven collaborate with the Von
Karman Institute for Fluid Dynamics on the development of 2D and 3D codes
for solving the nonlinear hyperbolic MHD equations on unstructured grids.
The new codes are based on CFD codes developed at the Von Karman Institute
and will be applied to the study of MHD shocks formed in Coronal Mass
Ejections (CMEs) on the Sun and to the dynamics of filamented thermonuclear
fusion plasmas.

The new researcher will mainly work on the numerical aspects, i.e. on the
evaluation and optimization of iterative solvers and preconditioners for
MHD applications, especially on parallel computers. In the first phase
steady state applications will be considered, while in a later phase also
2D unsteady applications will be dealt with.

The candidate should have a background in scientific computing or in MHD.
The position is intended for a young researcher and may lead to a Ph.D.,
but also post-doctoral researchers may apply.
The position is available for 3 years, starting January 1998.

More information about the research groups can be found at,, and

Interested candidates should send
- an application letter including a detailed statement of research interest,
- curriculum vitae,
- the names + addresses of two persons, who could be contacted for a 
reference letter

to :

Prof. Dirk Roose
Dept. Computer Science, K.U.Leuven
Celestijnenlaan 200A, B-3001 Heverlee-Leuven
Phone: + 32-16-32 75 46 Fax: + 32-16-32 79 96

or to

Prof. Stefaan Poedts
Centre for Plasma Astrophysics, K.U.Leuven
Celestijnenlaan 200B, 3001 Heverlee, Belgium
Phone: +32-16-32 70 23 Fax: +32-16-32 79 98


From: Hans Schneider <>
Date: Wed, 3 Dec 1997 10:08:08 -0600 (CST)
Subject: Contents, Linear Algebra and Its Applications

Journal : Linear Algebra and Its Applications
Volume issue : 272/01-03
Year : 1997
Anticipated Publication Date: 19-DEC-97

pp. 1-16
Inverting Block Toeplitz Matrices in Block Hessenberg Form by Means of
Displacement Operators: Application to Queueing Problems

pp. 17-32
Two connections between the SR and HR Eigenvalue Algorithms
DAVIDS Watkins

pp. 33-44
On the connectedness of solution sets in linear complementary problems
MS Gowda

pp. 45-57
Linearizations, realization, and scalar products for regular matrix polynominals
Krupnik, P Lancaster

pp. 59-89
Singular values and eigenvalues of non-Hermitian block Toeplitz matrices
P Tilli

pp. 91-101
On Lei-Miranda-Thompson's result on singular values and diagonal elements
TY Tam

pp. 103-130
Spectra and pseudospectra of block Toeplitz matrices
A Lumsdaine

pp. 131-153
Destabilizing effects of small time-delays on feedback controlled descriptor
HARTMUT Logemann

pp. 155-168
On the optimal consistent approximation to pairwise comparison matrices
MT Chu

pp. 169-179
Further lower bounds for the smallest singular value
C Johnson, T Szulc

pp. 181-192
New perturbation results for equality constrained least squares problems
J Ding

pp. 193-203
On the structure of stochastic matrices with a subdominant eigenvalue near 1
DJ Hartfiel

pp. 205-225
Majorization, polyhedra and statistical testing problems
G Dahl

pp. 227-275
Componentwise analysis of direct factorization of real symmetric Hermitian
I Slapnicar


From: Hans Schneider <>
Date: Wed, 3 Dec 1997 10:38:02 -0600 (CST)
Subject: Special Issue, Linear Algebra and Its Applications


CALL FOR PAPERS: Special Issue on Linear Systems and Control.

Over the last 15 years, LAA has published three special issues devoted to
Linear Systems and Control. These issues that came out as vol. 50 (1983),
vols. 122-124 (1989) and vols. 203-206 (1994) were among the best issues
of this journal in terms both of scope and quality. They are evidence of
the vitality of the field of systems and control, of the breadths and
depth of the mathematical techniques employed and developed. Each of
these special issues provided a cross section of the current interests in
our field. We believe that these issues also had some beneficial effect in
attracting younger people to the field.

The closing of the second millenium and the beginning of the third is a
natural point to stop for a summing up on one hand and charting the future
course on the other. What we are proposing for this occasion is a
different kind of special issue.

We do not aim at a large publication, but want to achieve distinction
through a high quality collaborative effort. We aspire to a volume that
makes a strong positive statement about systems and control and archives
some of the major contributions of the last decades. It is our expectation
that these goals can be best achieved by collaborations and we intend to
do whatever we can to encourage the development of papers that are
co-authored by people who would represent different points of view on the
same subject. In the best case the contributions will be fairly
homogeneous with respect to mathematical level and length. What we are
after are topics that seem to have adequate scope and depth. A
preliminary list of possible topics would include:

- Schubert Calculus as a problem in matrix calculus
- Matrices depending on parameters and their algebraic geometry
- Factorization theory of matrix functions
- Behaviours and geometric control theory
- Module theoretic techniques in system theory
- Interpolation theory on loop groups.
- Geometry of rational function spaces, matrix flows
- Systems over finite fields, coding theory
- Realization theory for structured matrices
- Analysis of zeros and connection to geometric control
- New computational techniques in control

Of course additional topics can be considered as well. If questions arise
as to the suitability of a paper for the special issue in terms of topic,
scope or method, it is advisable that the author(s) communicate directly
with of the special issue editors. At the present time there is a
definite possibility that this could be the first issue of the year 2000
for LAA. What better way to start the new millenium?

To make this target date possible, the submission deadline has been set
for 30 September, 1998. Papers should be submitted to one of the special
issue editors listed below:

Prof. A.C. Antoulas
Department of Electrical Engineering
Rice University
Houston, Texas 77251, U.S.A.

Prof. R.W. Brockett
Div. of Engineering and Applied Physics
Harvard University
Cambridge, MA 02138, USA

Prof. P.A. Fuhrmann
Department of Mathematics and Computer Science
Ben-Gurion University
84105 Beer Sheva, Israel

Prof. Dr. U. Helmke
Mathematisches Institut
University of Wuerzburg Am Hubland
97074 Wuerzburg, Germany

Prof. J.C. Willems
Department of Mathematics
University of Groningen
P.O.Box 800
Groningen, The Netherlands


End of NA Digest