## NA Digest Saturday, November 23, 1996 Volume 96 : Issue 44

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

### Submissions for NA Digest:

Mail to na.digest@na-net.ornl.gov.

Mail to na.help@na-net.ornl.gov.

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

From: Robert Chan <chan@scitec.auckland.ac.nz>
Date: Fri, 22 Nov 1996 17:55:13 +1300 (NZDT)
Subject: Hector Memorial Award for John Butcher

HECTOR MEMORIAL AWARD

John Butcher has been awarded the Hector Memorial Medal by the
Royal Society of New Zealand for his work on numerical analysis
(ordinary differential equations). This medal is New Zealand's
premier scientific honour and is awarded annually, in rotation amongst
various sciences. It was named in memory of Sir James Hector, a
pioneering New Zealand scientist, and amongst its recipients is Ernest
Rutherford (1916). The last occasion when it was awarded to a
mathematical scientist was in 1982 when the recipient was Roy Patrick
Kerr, for his work in the theory of relativity. The Royal Society of New
Zealand is that country's scientific academy and the award of the Hector
medal this year is regarded by John as a recognition of the importance of
numerical analysis.

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

From: Stanly Steinberg <stanly@math.unm.edu>
Date: Sun, 17 Nov 1996 23:53:58 -0700 (MST)
Subject: Nonlinear PDE Examples Needed

Dear Colleagues:

I need some **realistic** examples of convection-diffusion or diffusion
equations of the form

d epsilon / d t = div(A.grad(f)) + div(V.f) + F

where epsilon depends nonlinearly on f or A depends of f or both. I am
particularly interested in the diffusion dominated case, e.g. examples
where V = 0. I want to use the problems for test cases for finite-difference
and finite-volume algorithms. Textbook references would be great.

Stan

Stanly Steinberg
Department of Mathematics and Statistics
University of New Mexico
Albuquerque NM 87131-1141 USA
stanly@math.unm.edu
http://math.unm.edu/~stanly/

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

From: Steve Vavasis <vavasis@mcs.anl.gov>
Date: Tue, 19 Nov 1996 11:04:16 -0600
Subject: Mesh Generation Software

I would like to announce the release of QMG1.1. QMG is free software
available on the Web for fully automatic unstructured finite element
mesh generation in two and three dimensions. It can generate meshes
for complex polyhedral domains with nonmanifold features. It includes
geometric modeling routines for polyhedral domains, two mesh
generators and a finite element solver. QMG is written in primarily
in C++ and is a collection of m-files and mex-files that run under
Matlab 4.2.

The new features of QMG1.1 (compared to QMG1.0) are:

(1) In addition to running under Matlab, QMG1.1 can also run under
Tcl/Tk. Tcl is a scripting language, and Tk is a GUI-building
toolkit. Both were developed at UC-Berkeley/Sun Microsystems and are
available on the Web.
(2) QMG1.1 runs under Microsoft Windows NT as well as Unix. Windows
NT (i386) users can download the QMG executables directly from the Web.
(3) QMG1.1 uses VRML and a web browser for 3D graphics.
(4) QMG1.1 includes a Delaunay-based boundary mesh generator as well
as an octree-based volumetric mesh generator.
(5) The 3D volumetric mesh generator in QMG1.1 runs much faster
and produces higher quality meshes than QMG1.0.
(6) QMG1.1 supports additional simplified file formats for I/O of
geometric objects.

http://www.cs.cornell.edu/home/vavasis/qmg-home.html

Steve Vavasis (vavasis@mcs.anl.gov)

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

From: Ka Man Cheang <kcheang@scf-fs.usc.edu>
Date: Tue, 19 Nov 1996 12:15:04 -0800 (PST)
Subject: Seeking Minimum Degree Code

I am searching for codes for symmetric minimum degree algorithm in C.
I wonder if any NA Digest reader has such available. Any suggestion to where
to look for it will be very much appreciate.

yours,

Ka Man Cheang

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

From: Thomas Strohmer <strohmer@tyche.mat.univie.ac.at>
Date: Fri, 22 Nov 96 16:23:50 +0100
Subject: Conjugate Gradients for Different Right Sides

I would appreciate any suggestion regarding the existence
of any efficient modification of conjugate gradients which
allows to solve for a linear system of equations Ax=b with
different right sides.

Thomas Strohmer (strohmer@tyche.mat.univie.ac.at)
NUHAG (Numerical Harmonic Analysis Group)
Department of Mathematics, University of Vienna
Strudlhofgasse 4
A-1090 Vienna
Austria
Voice: ++43-1-40480-694 Fax: ++43-1-40480-697
WWW: http://tyche.mat.univie.ac.at FTP: 131.130.145.24

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

From: Jerzy Wasniewski <unijw@unidhp1.uni-c.dk>
Date: Thu, 21 Nov 1996 09:13:00 +0100 (MET)
Subject: PARA'96, Proceedings

The PARA'96 Proceedings of Workshop organized last August in Lyngby,
Denmark have now been completed. The book will be released by the
beginning of December 1996, as a volume 1184 of the Springer Lecture
Notes in Computer Science series. The list price will be DM 134.00.

Editors: Jerzy Wasniewski, Jack Dongarra, Kaj Madsen and Dorte Olesen.
Title: Applied Parallel Computing in Industrial Problems and
Optimization.

Every registered PARA'96 participant will get one book free of charge.
Authors or editors of Springer books, as well as any contributing authors,
for example to LNCS proceedings, are entitled to purchase this or any other
book published by Springer-Verlag for personal use at a discount of 33 1/3%
directly from the Springer company. Orders are to be sent electronically to
orders@springer.de (including the complete mailing address) or by mail to
Springer-Verlag, Vertrieb, Postfach 31 13 40, D-10643 Berlin, Fax
+49 30 8207 301. A cheque covering two thirds of the list price plus DM
5.00 for postage has to be enclosed to the (mailed) order or a credit card
number has to be given. Only Eurocard, Visa, Diners or American Express are
accepted.

Best regards,
Jerzy

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

From: John C. Nash <jcnash@aix1.uottawa.ca>
Date: Thu, 21 Nov 1996 14:48:43 -0500 (EST)
Subject: Republication of Nonlinear Parameter Estimation

Earlier this year our book "Nonlinear Parameter Estimation:
an integrated system in BASIC" (Dekker: 1987) went out of print
and we recovered the rights. We have repackaged this in Adobe
Acrobat form along with a large body of extensions to both the
book and the software. It appears that folk working with Visual
BASIC are finding the codes useful. Also there are a number of
nonlinear estimation problems not discussed elsewhere.

Sample chapters for the book and the extensions as well as the
freeware subset of the codes are available on

http://www.nashinfo.com/~nis/

There is a special price for the collection until Jan 15, 1997.

John C. Nash, University of Ottawa jcnash@uottawa.ca

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

From: Johannes Gottlieb <rd04@rz70.rz.uni-karlsruhe.de>
Date: Tue Nov 19 12:50:30 1996
Subject: New Book on Inverse Problems

New Book on Inverse Problems:

The proceedings of the workshop
"Parameter Identification and Inverse Problems
in Hydrology, Geology and Ecology"
Karlsruhe, April 12-14, 1995
Eds.: Johannes Gottlieb, Paul DuChateau
The list price has been fixed at Dfl. 215,--/US\$ 140,--.

The abstracts of the contributions to the proceedings you find in
http://www.uni-karlsruhe.de/~fzu/Conference/workshop.en.html
There are a few copies available for a special price for workshop
participants at
DM 85,-- (approx. US\$ 58,--)

Please make orders by the first editor.
The price includes postage and handling.

Dr. Johannes Gottlieb
Universitaet Karlsruhe
Forschungszentrum Umwelt (FZU)
Kaiserstrasse 12
D-76128 Karlsruhe

Tel: +49/721/608-2053
Fax: +49/721/608-6109
E-Mail: johannes.gottlieb@fzu.uni-karlsruhe.de

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

From: Tom Peacock <PEACOCKT@oup.co.uk>
Date: Mon, 18 Nov 1996 15:52:03 +0000
Subject: Theory and Numerics of Ordinary and Partial Differential Equations

Special offer to NA Digest subscribers: 15 pounds off the cost of the
following book.

Regular Hardback price: GBP35.00 plus 10% postage & packing
Special price for NA Digest subscribers: GBP20.00 plus 10% postage & packing

Theory and Numerics of Ordinary and Partial Differential Equations
M. Ainsworth, J. Levesley, W. A. Light, and M. Marletta
University of Leicester

This book surveys the most recent research in six key areas related to
numerical solutions of differential equations. It covers guaranteed error
bounds for ordinary differential equations; an introduction to computational
methods for differential equations; numerical solution of differential-algebraic
equations, boundary element methods; and perturbation theory for infinite
dimensional dynamical systems. It draws together a method that is currently
only available in journals, introducing the reader to important current
research. This book is written at a level for graduate students and researchers
in computational mathematics and in application areas in physics and
engineering.

CONTENTS: George F. Corliss: Guaranteed Error Bounds for Ordinary Differential
Equations; Kenneth Eriksson, Don Estap, Peter Hansbo and Claes Johnson:
Introduction to Computational Methods for Differential Equations;
Linda R. Petzold: Numerical Solution of Differential-Algebraic Equations;
Ian H. Sloan: Boundary Element Methods; Andrew Stuart: Perturbation Theory for
Infinite Dimensional Dynamical Systems; M. Zennaro: Delay Differential
Equations: Theory and Numerics.

ISBN 0-19-851193-0, 346 pages, line figures, Published July 1995

Fax 00 44 (0)1865 267782, Email peacockt@oup.co.uk. Please quote the ISBN
in your order and remember to refer to NA Digest (otherwise you will be
invoiced at the full price).

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

From: H. J. Stetter <stetter@uranus.tuwien.ac.at>
Date: Wed, 20 Nov 96 12:03:55 MET
Subject: Special Issue on Symbolic-Numeric Algebra for Polynomials

C a l l for P a p e r s
Special Issue of Journal of Symbolic Computation
on Symbolic-Numeric Algebra for Polynomials

Within the area of Scientific Computing, the results of algebraic problems are
often needed in numerical form to a specified accuracy. Some of the data of
such problems (e.g. coefficients of polynomials) may be exact while others may
be known only within a given tolerance.

In such situations, the usual concepts and algorithms of computer algebra are
not immediately applicable. Appropriate approaches must utilize ideas and
algorithmic techniques from numeric computation together with standard and
possibly extended procedures from classical computer algebra. The emerging area
of mathematics dealing with this situation may be thought of as "numerical
nonlinear algebra", in analogy with the well-known area of "numerical linear
algebra".

While some work in this field had already begun in the 1980s, activities have
recently been growing in depth and breadth. This summer the workshop SNAP 96,
held at INRIA Sophia Antipolis (France), brought a focus to the area of
symbolic-numeric algebra for polynomials. The literature in this area has
appeared in various locations, but has until now been quite dispersed and
difficult to locate. It appears timely to collect some outstanding results of
this development into a special issue of the Journal of Symbolic Computation.

We invite submissions for this special issue on Symbolic-Numeric Algebra for
Polynomials. Such papers should contribute to the understanding of the inter-
action of symbolic and numeric computing. Their results should be relevant
for the design of algorithms for the solution of related problems and the
computer implementation of such algorithms. Relevant topics include, but are
not restricted to:

- GCD computation for polynomials with inexactly-known coefficients;
- symbolic-numeric methods for simplifying and solving multivariate polynomial
systems;
- matrix methods oriented towards zero-dimensional ideals (e.g. multivariate
resultants);
- methods for other approximate polynomial problems (e.g. factorization,
- software systems for the efficient implementation of such algorithms, taking

Manuscripts should be submitted to either one of the two guest-editors who will
handle the preparation of this special issue.

Deadline for submission of full papers: 31 March, 1997
Notification of acceptance/rejection: 30 June, 1997
Final revised manuscripts due: 30 September, 1997
Appearance of special issue: early in 1998

Guest editors:

Stephen Watt Hans J. Stetter
IBM T.J. Watson Research Center Technical University
P.O.Box 218, Yorktown Heights NY 10598 USA A-1040 Vienna, Austria
smwatt@watson.ibm.com stetter@uranus.tuwien.ac.at

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

From: Hans Bungartz <bungartz@informatik.tu-muenchen.de>
Date: Mon, 18 Nov 1996 10:17:58 +0100 (MEZ)
Subject: EuroPar'97 Workshop Announcement

Euro-Par'97

Announcing the Euro-Par'97 Workshop #09: PARALLEL NUMERICAL ALGORITHMS

Euro-Par is the annual European conference in Parallel Processing. Like
the 1996 conference in Lyon, the 1997 version will consist of a number
of highly focussed workshops on all aspects of parallel processing,
from theory to practice, from academy to industry. The workshops will
there will be a number of high-level tutorials of general interest plus
a series of invited talks. All accepted papers will appear in the

Today, robust and efficient parallel algorithms for the basic problems of
numerical mathematics are crucial for most of the computational work arising
in science and engineering. Therefore, this workshop shall be a forum for the
presentation and discussion of new developments in the area of parallel
numerical algorithms, covering all aspects from the algorithmic idea and the
software prototyping to the efficient implementation on modern parallel
architectures and the performance analysis. Due to its significance in the
field of partial differential equations and others, the solution of large
linear systems will be in the centre of interest, but contributions concerning
other problems from numerical linear algebra or topics like numerical
quadrature, nonlinear systems, integral equations, or differential equations
in general are very welcome, too.

The Workshop's Program Committee:

* Ulrich Langer, University of Linz, Austria, Chair
* Hans-Joachim Bungartz, TU Munich, Germany, Local Chair
* David E. Keyes, ICASE and Old Dominion University, USA, Vice-Chair
* Marian Vajtersic, Slovak Academy, Slovakia, Vice-Chair

Euro-Par'97, Universitaet Passau, D-94030 Passau, Germany
Phone: (+49) (851) 509-3071; Fax: (+49) (851) 509-3092
E-mail: europar97@fmi.uni-passau.de; URL: http://www.uni-passau.de/europar97/

Submissions:

Submissions are expected to be no longer than 12 pages in the LNCS style
(http://www.springer.de/author/tex/help-tex.html). Papers will be published
in 3 categories: distinguished (12 pages), full (8 pages), and short papers
(4 pages). Submissions should be electronic and consist of 2 e-mails, the first
one containing an ASCII cover page giving the author's name, address, phone and
fax numbers, e-mail address, a 100-word abstract and keywords, as well as the
workshop number (#09) and title, the second one with the printable file
(uuencode'd compressed EPS, most preferably generated by dvips).

Important Dates:

Register on the mailing list: Today!
Deadline for paper submissions: 20 January 1997
Deadline for electronic submissions: 1 February 1997
Notification of acceptance: 2 May 1997
Final version due: 10 June 1997
Early registration: 30 June 1997
Euro-Par'97 in Passau: 26--29 August 1997

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

From: H. J. Werner <or470@unitas.or.uni-bonn.de>
Date: Tue, 19 Nov 96 17:58:46 +0100
Subject: Workshop on Matrix Methods for Statistics

First Announcement
Sixth International Workshop on
"MATRIX METHODS FOR STATISTICS"
Istanbul, Turkey: August 16-17, 1997

The Sixth International Workshop on "Matrix Methods for Statistics"
will be held in Istanbul, Turkey, on Saturday, August 16 and
Sunday, August 17, 1997, the weekend immediately preceding the
51st Session of the International Statistical Institute (ISI).

Scientific Programme Committee: R. William Farebrother (Manchester,
England), Simo Puntanen (Tampere, Finland), George P. H. Styan
(Montreal, Canada), and Hans Joachim Werner (Bonn, Germany; chair).
Local Organizing Committee: Fikri Akdeniz (Adana, Turkey; chair),
Omer L. Gebizlioglu (Ankara, Turkey), and Cemil Yapar (Trabzon,
Turkey).

The purpose of this Workshop is to stimulate research and, in an
informal setting, to foster the interaction of researchers in the
interface between matrix theory and statistics. This Workshop will
provide a forum for statisticians working in the areas of linear
algebra and matrix theory to become better informed of the latest
developments and newest techniques and to interchange ideas.

It is expected that selected papers from this Sixth International
Workshop on Matrix Methods for Statistics will be published in a
Special Issue on Linear Algebra and Statistics of Linear Algebra and
Its Applications.

Hans Joachim Werner (Chair of the Workshop Programme Committee)
Institute for Econometrics and Operations Research, Econometrics Unit,
University of Bonn, Adenauerallee 24-42, D-53113 Bonn, Germany
Email: or470@unitas.or.uni-bonn.de, na.werner@na-net.ornl.gov
FAX: ++49 +228 739189 (email is preferred)
or
Fikri Akdeniz (Chair of the Local Organizing Committee)
Department of Mathematics, Cukurova University, 01330 Adana, Turkey
Email: akdeniz@pamuk.cc.cu.edu.tr
FAX: ++90 +322 3386070

Contributed papers will be welcome!

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

From: Dirk Laurie <dirk@calvyn.puk.ac.za>
Date: Fri, 22 Nov 1996 19:12:19 +0200 (SAT)
Subject: Numerical Analysis and Approximation Theory Meeting

A Special Session (i.e. mini-symposium) on Numerical Analysis
and Approximation Theory will be held during the Joint Meeting
of the South African, American and London Mathematical Societies
(SAMS, AMS, LMS) in Pretoria, South Africa, on June 26-28, 1997.
This session will replace the annual South African Symposium on
Numerical Mathematics usually held near that time.

CALL FOR PAPERS:
Any contribution in the (presumably elliptical?) region of
mathematics with Numerical Analysis and Approximation Theory
as its foci is welcomed. At this stage we are not yet tied
to a fixed schedule, so please indicate what the optimal length
for your presentation would be. Poster sessions can also be
arranged if enough people prefer them.
Send your submissions to one of the following:
dlaurie@na-net.ornl.gov (Dirk Laurie)
036dsl@cosmos.wits.ac.za (Doron Lubinsky)
weideman@math.orst.edu (Andre Weideman)

FURTHER DETAILS:
Information on the Meeting as a whole and on South Africa
the South African Mathematical Society:
http://science.up.ac.za/sams

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

From: Robert Corless <rmc@pineapple.apmaths.uwo.ca>
Date: Wed, 20 Nov 1996 11:46:15 -0500
Subject: International Symposium on Symbolic and Algebraic Manipulation

I S S A C 97 July 21--23 Aston Wailea Resort, Maui, Hawaii, USA

The International Symposium on Symbolic and Algebraic Manipulation will
be held next year in Hawaii. For those of you who don't know of it,
this is the largest computer algebra meeting, and is held yearly. It
will be held in federation with PASCO (Parallel Symbolic Computation)
'97 (July 20-22) and in association with the IMACS ACA (Applications of
Computer Algebra) '97 (July 24-26), both at the same location.
Assistance is being provided by the Maui High Performance Computing
Centre.

Numerical analysts and other readers of NA.Digest are especially invited
to attend this meeting, which is sponsored by SIGNUM as well as by
SIGSAM; some very exciting things are happening at the boundary
between numerical and symbolic computation.

The (very hard) deadline for paper submissions is

January 15, 1997

and details on topics of interest, instructions for authors and the like
may be found at the official ISSAC '97 web page:

http://www.mcs.drexel.edu/ISSAC97

I hope to see you in Hawaii.

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

From: Robert Corless <rmc@pineapple.apmaths.uwo.ca>
Date: Wed, 20 Nov 1996 13:04:23 -0500
Subject: SIGSAM Bulletin

S I G S A M B u l l e t i n
Communications in Computer Algebra

Dear Colleagues:

Many of you will have read Professor H. J. Stetter's recent letter
in the SIGNUM newsletter, discussing the connection between numerical
analysis and computer algebra. This note is to echo his invitation
to numerical analysts to participate more fully in the area.

In particular, as Editor of the SIGSAM Bulletin (SIGSAM = Special Interest
Group in Symbolic and Algebraic Manipulation), a quarterly publication of
the ACM, I would like to invite you to submit items for consideration for
publication in the Bulletin.

Items of interest could include calls for papers for conferences and
special issues of various journals, preferably less than one page and
in LaTeX2e. More interestingly, short papers submitted to the Timely
Communications section (which is unreviewed and hence fast) on topics
that are of joint interest to numerical analysts and computer algebraists
would be very welcome. We also have a new Formally Reviewed section,
for which papers undergo a thorough (but still quick) formal review
process. Successful papers receive an imprint on their first pages
when published. I invite you to submit papers for this section.

Finally, I invite you to join SIGSAM. Membership benefits include
receiving the Bulletin, and also a free copy of the proceedings of
ISSAC. You may find a membership application form at the back of
the last two issues of the Bulletin, or you may join by filling out

As a very last remark, I note that the 1997 ISSAC meeting will be
held July 21--23, 1997, in Maui (see the message elsewhere in this
NA.Digest). These dates do not conflict with the SIAM 45th annual
meeting in Stanford; indeed they suggest a very interesting summer
with attendance at SIAM, followed by PASCO (Parallel Symbolic Computation)
in Hawaii, ISSAC, and finally Applications of Computer Algebra all to
choose among (the nice thing is that one can choose them all---the last
three are all at the same place).

Yours sincerely,

Robert M. Corless
Sigsam Bulletin Editor

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

From: Bob Vanderbei <rvdb@teal.Princeton.EDU>
Date: Fri, 22 Nov 1996 12:02:54 GMT
Subject: Beale-Orchard-Hays Prize

Beale-Orchard-Hays Prize

Call for Nominations:

Nominations are being sought for the Mathematical Programming Society
Beale-Orchard-Hays Prize for Excellence in Computational Mathematical
Programming.

Purpose:

This award is dedicated to the memory of Martin Beale and William
Orchard-Hays, pioneers in computational mathematical programming. To be
eligible a paper or a book must meet the following requirements:

1) It must be on computational mathematical programming. The topics to be
considered include:

a) experimental evaluations of one or more mathematical algorithms,

b) the development of quality mathematical programming software (i.e.
well-documented code capable of obtaining solutions to some important class
of MP problems) coupled with documentation of the applications of the
software to this class of problems (note: the award would be presented for
the paper which describes this work and not for the software itself),

c) the development of a new computational method that improves the
state-of-the art in computer implementations of MP algorithms coupled with
documentation of the experiment which showed the improvement, or

d) the development of new methods for empirical testing of mathematical
programming techniques (e.g., development of a new design for computational
experiments, identification of new performance measures, methods for
reducing the cost of empirical testing).

2) It must have appeared in the open literature.

3) If the paper or book is written in a language other than English, then
an English translation must also be included.

4) Papers eligible for the 1997 award must have been published within the
years 1993 through 1996.

These requirements are intended as guidelines to the screening committee
but are not to be viewed as binding when work of exceptional merit comes
close to satisfying them.

Frequency and Amount of the Award:

The prize is awarded every three years. The 1997 prize of \$1500 and a
plaque will be presented in August 1997, at the Swiss Federal Institute of
Technology (EPFL), Lausanne Switzerland, at
the Awards Session of the International Symposium on Mathematical
Programming sponsored by the Mathematical Programming Society.

Judgement criteria:

Nominations will be judged on the following criteria:

1) Magnitude of the contribution to the advancement of computational and
experimental mathematical programming.

2) Originality of ideas and methods.

3) Clarity and excellence of exposition.

Nominations:

Nominations must be in writing and include the title(s) of the paper(s) or
book, the author(s), the place and date of publication and four copies of
the material. Supporting justification and any supplementary materials are
welcome but not mandatory. The awards committee reserves the right to
request further supporting materials from the nominees.

Nominations should be mailed to:

Professor Robert J. Vanderbei
Dept. of Civ. Eng. and Operations Research
Princeton University
Princeton, NJ 08544
USA

The deadline for submission of nominations is January 1, 1997.

This call-for-nomination can be viewed online by visiting:

http://www.sor.princeton.edu/~rvdb/BOH97.html

Robert J. Vanderbei, EMS Program Director
ACE-42 E-Quad, Princeton University, Princeton NJ 08544
Tel: 609-258-0876 Fax: 609-258-3796
rvdb@princeton.edu http://www.princeton.edu/~rvdb/

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

From: Andrea Piacentini <andrea@cerfacs.fr>
Date: Mon, 18 Nov 1996 08:46:07 +0100 (MET)
Subject: Research Engineer Position at CERFACS

RESEARCH ENGINEER POSITION AT CERFACS FOR 1997 :

CLIMATE MODELLING AND GLOBAL CHANGE

POSITION DESCRIPTION: the ``Climate Modelling & Global Change'' team at
CERFACS has a ``research engineer'' position available in the field of
ocean-atmosphere Coupled General Circulation Models. The team looks for a
highly qualified and motivated candidate with strong experience in climate
modelling or related field. Responsabilities of the job include development
and maintenance of coupling, database and analysis softwares as well as the
use of supercomputers to perform numerical climate simulations. This
position also involves support to the team members on computing matters.

REQUIRED QUALIFICATIONS: Ph.D. in Geosciences or related field; strong
experience with supercomputers, programming languages (Fortran, Unix ...)
and graphic softwares; ability to participate in an active way in team work
and communicate well.

ADDITIONAL QUALIFICATIONS: experience with coupled GCMs, knowledge of ocean
and/or atmospheric physics, statistical analysis of data, database
management.

OPENING OF THE POSITION: the appointment is expected to be made by January
1st, 1997, or as mutually acceptable subject to position clearances. Salary
will be commensurate with qualifications and experience.

APPLICATIONS: for full consideration, an application letter including a
detailed statement of research interest, along with a curriculum vitae and,
if possible, reference letters, should be submitted as soon as possible to

Prof. O. Thual, Climate Modelling & Global Change team
CERFACS, 42 Av. Coriolis, F-31057 Toulouse, France

Contacts can be taken at the following adresses:

Olivier Thual, E-mail: thual@cerfacs.fr
Tel: (33) 5 61 19 30 70, Fax: (33) 5 61 19 30 00

Laurent Terray, E-mail: terray@cerfacs.fr
Tel: (33) 5 61 19 30 15, Fax: (33) 5 61 19 30 00

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

From: Daniel Lozier <lozier@cam.nist.gov>
Date: Mon, 18 Nov 96 10:51:10 EST
Subject: Postdoctoral Position at NIST

A postdoctoral research opportunity in computation of special functions
exists at NIST in Gaithersburg, MD. The deadline for applications is
January 15, 1997. Only US citizens are eligible. An announcement may
be seen at http://math.nist.gov/acmd/Staff/DLozier/postdoc.html.

Dan Lozier
Applied and Computational Mathematics Division
National Institute of Standards and Technology
Gaitherburg, MD 20899

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

From: Ridgway Scott <scott@hpc.uh.edu>
Date: Fri, 22 Nov 1996 09:25:42 -0600 (CST)
Subject: Postdoctoral Position at Texas A&M /Univ. of Houston

Texas A&M University/University of Houston

The Intelligent Pipeline Optimization Project (IPOP) seeks a postdoctoral
associate in operations research/optimization for a 2+ year NSF supported
research appointment to investigate compressor-driven flows in pipeline
networks. IPOP is a joint project of Department of Industrial
Engineering at Texas A&M University and the Department of Mathematics
at the University of Houston.

Knowledge of optimization (LP, IP, NLP, network flows) and significant
software experience essential; a background in numerical mathematics
and pde's a plus. Position will involve basic research in collaboration
with academic and industrial colleagues. Applications will be reviewed
commencing January 1, 1997. Send vita, including three letters of
reference, to Professor Andrew Boyd, Department of Industrial
Engineering, Texas A&M University, College Station, TX, 77843-3131.

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

Date: Mon, 18 Nov 1996 14:43:16 -0800
Subject: Faculty Position at University of California, Santa Cruz

APPLIED AND ENGINEERING MATHEMATICS, UCSC

The Santa Cruz campus of the University of California invites nominations
and applications for an outstanding senior faculty member of international
reputation in applied mathematics. The successful candidate will be the
first of several new appointments in an Applied and Engineering Mathematics
Program within a new engineering school (pending formal approval by the UC
Regents) and will play a leading role in the development of the new
Program. We are particularly interested in applicants with outstanding
research records in either or both of: 1) mechanics and dynamics,
including fluid mechanics, applied dynamical systems, and control theory;
2) applied probability, statistics, and stochastic processes. The appointee
is expected to maintain an active research program, teach at both the
assist in the development of the curriculum.

RANK: Associate to Full Professor

MINIMUM QUALIFICATIONS: Ph.D. or equivalent in applied mathematics or
related field. Outstanding record as researcher and educator appropriate to
the level of appointment. Achievements in or demonstrated potential for
leadership in the development of a new academic program at the university
level.

POSITION AVAILABLE: Fall 1997.

SALARY: Commensurate with qualifications and experience.

APPLY TO: Applicants should submit a curriculum vitae, statement of
research, teaching and administrative interest and experience, copies of
selected publications, and the names and addresses of five referees to:

Chair, Applied and Engineering Math Search Committee
225 Applied Sciences
University of California
Santa Cruz, CA 95064
USA

Please refer to Provision #441 in all correspondence.

CLOSING DATE: Nominations and applications received by February 1, 1997
will be assured of receiving full consideration.

For further information regarding this position, you may contact Dr. Geoff
development of engineering at Santa Cruz, please refer to our web site
http://www.cse.ucsc.edu/engineering.

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

From: Jeffrey T Borggaard <borggajt@sun.icam.vt.edu>
Date: Tue, 19 Nov 1996 14:52:06 -0500
Subject: Faculty Position at Virginia Tech

Position at Virginia Tech

The Department of Mathematics at Virginia Polytechnic Institute & State
University invites applications for a tenured full professorship in
the area of numerical analysis with emphasis on computational methods
for partial differential equations.

The successful candidate must possess a strong continuing record of
internationally recognized research in computational mathematics and
the candidate's encouragement of excellence in research, teaching,
College of Engineering, and the appointee would be expected to foster
and encourage these ties.

The intellectual climate for applied mathematics at Virginia Polytechnic
Institute & State University is lively and challenging. The Department
has an outstanding group of applied mathematicians in the areas of
control and optimization, numerical analysis, stochastic processes,
ordinary differential equations, partial differential equations and
integro-differential equations. The successful appointee will be
expected to interact with members of the applied mathematics group and
provide senior leadership in the area of applied numerical analysis. In
addition, the Interdisciplinary Center for Applied Mathematics (ICAM) is
a University Center which facilitates interactions among the faculty at
Virginia Tech, industry and other research institutions. The Center for
Optimal Design and Control (CODAC) is a URI Center which operates within
ICAM and supports interdisciplinary research in optimal design,
optimization, control theory, computational mathematics and applications
to aerospace systems. The successful applicant will have the
opportunity to become a member of ICAM and work on a wide variety of
projects crossing several engineering and mathematical sciences
departments.

excellent computational facilities as well as to several national high
performance computing centers.

Applications will be accepted until the position is filled. Applicants
should send a vita and have five letters of recommendation sent to:

Numerical Analysis Search Committee
Department of Mathematics
Virginia Tech
Blacksburg, VA 24061-0123

Virginia Polytechnic Institute & State University has a strong
commitment to the principle of diversity and, in that spirit, seeks a
broad spectrum of candidates including women, minorities, and people
with disabilities.

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

From: Jose Flores <jflores@sunflowr.usd.edu>
Date: Wed, 20 Nov 1996 15:35:32 -0600 (CST)
Subject: Faculty Positions at University of South Dakota

Three or more positions in mathematics in the Department of Mathematical
Sciences of the University of South Dakota starting August, 1997.

http://www.usd.edu/math/

Jose D. Flores

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

From: Michael Miksis <miksis@foam.esam.nwu.edu>
Date: Thu, 21 Nov 96 12:13:28 CST
Subject: Faculty Position at Northwestern University

Northwestern University
Department of Engineering Sciences
and Applied Mathematics

The department invites applications for a tenure-track position
in applied mathematics at the level of assistant
professor, to begin in September 1997.
Requirements include a Ph.D. and demonstrated research ability
in an area compatible with the interests of the
department. Duties involve teaching and research.
Candidates with experience or education in engineering are
particularly encouraged to apply.

To ensure full consideration, applicants should send
their curriculum vitae, a statement of research interests
and at least three letters of recommendation
before January 15, 1997 to: Search Committee Chair, Department of
Engineering Sciences and Applied Mathematics, Northwestern
University, Evanston, IL 60208-3125.

Northwestern is an affirmative action/equal opportunity
employer. Applications from women and minorities are
especially welcome. Hiring is contingent upon
eligibility to work in the U.S.

From: Baltzer Science <mailer@ns.baltzer.nl>
Date: Thu, 21 Nov 1996 16:11:31 +0100
Subject: Contents, Annals of Numerical Mathematics

Please find below the contents of our journal

Annals of Numerical Mathematics 4

http://www.baltzer.nl/anuma/

Contents: Annals of numerical Mathematics Vol 4, 1997

The heritage of P.L. Chebyshev: A Festschrift in honor of the 70th birthday
of T.J. Rivlin

Editor: Charles A. Micchelli

Dedication
Charles A. Micchelli

On the work of Theodore J. Rivlin
C.A. Micchelli

A brief preface
T.J. Rivlin

On Chebyshev polynomials in dynamics
R. Adler, B. Kitchens, C.A. Micchelli and C. Tresser 1

Renewal sequences and ordered partitions
J.M. Anderson and A. Hinkkanen 11

Bounds for the trace of the inverse and the determinant of symmetric
positive definite matrices
Z. Bai and G.H. Golub 29

On approximation by exponentials
B.J.C. Baxter and A. Iserles 39

A discrepancy lemma for oscillating polynomials and sign changes of the
error function of best approximants
H.-P. Blatt 55

On the zeros of various kinds of orthogonal polynomials
C. Brezinski and M. Redivo-Zaglia 67

On the lower semicontinuity of best rational Chebyshev approximation
B. Brosowski 79

Rivlin's problem
B. Brosowski and F. Deutsch 95

Lebesgue functions for polynomial interpolation -- a survey
L. Brutman 111

On a recovery problem
M. Buhmann and A. Pinkus 129

The approximate sampling theorem, Poisson's sum formula, a decomposition
theorem for Parseval's equation and their interconnections
P.L. Butzer and A. Gessinger 143

Support and foundation of bases
J.M. Carnicer, T.N.T. Goodman and J.M. Pen

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

End of NA Digest

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