NA Digest Monday, January 26, 1998 Volume 98 : Issue 03

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to

URL for the World Wide Web:

From: Dietrich Braess <>
Date: Wed, 21 Jan 1998 14:54:16 +0100
Subject: Old Egyptian Games

Old egyptian games: Senet and the Game of The Twenty

This Christmas I got two old egyptian games as a present
from some organization: They are called 'Senet' and
'Game of The Twenty'. There is only some literature
about the old egyptian side.

Does somebody know mathematical theories or strategies
for these games?

Dietrich Braess, Bochum, Germany


From: Arnold Neumaier <>
Date: Mon, 19 Jan 1998 21:38:43 +0100
Subject: History of Nabla

Last week I posted the question:

Does anyone know the history of using the symbol $\nabla$ for
the gradient, and the meaning of the symbol outside of mathematics?

to na-net, and got a number of interesting answers. Thanks to all
who replied. A summary appears below; the full text of the replies I
got is available at
Corrections to the information given below are welcome.

Arnold Neumaier


The most definite information came from Avinoam Mann (MANN@VMS.HUJI.AC.IL)
who had posted a contribution to a nabla discussion on the academia mailing
list (, and it was communicated to me by
Dani Censor (, the maintainer of the list.
Mann refers to two web sites by Jeff Miller,

<A HREF="">
Earliest Known Uses of Some of the Words of Mathematics</A>
<A HREF="">
Earliest Uses of Various Mathematical Symbols</A>

where one can find the following:

These pages show the names of the individuals who first used various
common mathematical symbols, and the dates the symbols first
appeared. Written sources are listed on a separate page. The most
important written source is the definitive A History of Mathematical
Notations by Florian Cajori. [from mathsym.html]

The Hamiltonian operator. The symbol , which is also called a "del,"
"nabla," or "atled" (delta spelled backwards), was introduced
by William Rowan Hamilton (1805-1865) in 1853 in Lectures on
Quaternions, according to Cajori vol. 2, page 135.

David Wilkins has found the symbol used earlier by Hamilton in the
Proceedings of the Royal Irish Academy of the meeting held on
July 20, 1846. The volume appeared in 1847. However the symbol is
rotated 90 degrees. [from mathword.html]

The word NABLA (for the "del" or Hamiltonian operator) was suggested
humorously by James Clerk Maxwell, according to one source. According to
a post in sci.math by Noam D. Elkies, the term was coined by Tullio
Levi-Civita (1873-1941). A nabla is the name of an Egyptian harp. Cajori
(vol. 2, page 135) says Heaviside called the symbol a nabla.


Garry Tee mentioned that the standard biographies of Kelvin by
S. P. Thompson (1910) and Andrew Gray, and by Crosbie Smith in
"Energy and Empire" (CUP 1989) say something to the effect that
the symbol $\nabla$ was invented (c1870) by William
Thomson (later Baron Kelvin), as a modification of the symbol $\delta$
which he used for the Laplacian operator. The symbol suggests the
shape of a harp, and so Thomson gave it the Greek name.

But these references are many years later than Hamilton.


As regards language, nabla is the Greek word for some sort of harp.
David Schaps ( points out that the greek word
does not derive from the related Hebrew word nevel=nebel for harp
since it can be found already in the work of Sophocles. But probably
the common origin of both words is aramaic. Indeed, S I Ben-Abraham
(benabr@BGUMAIL.BGU.AC.IL) writes:

I venture to add that <nabla> was borrowed to Greek via its Aramaic
definite form <NBLA> (analogous to <alpha, beta, etc>.

And Alexandre Chorin ( writes:

I just had a conversation with Vivian Roumani (a librarian at UC
Berkeley) and Morton Denn (Chair, Chem. Eng. at UC Berkeley),
who told me that the symbol Nabla was invented by Hamilton;
it is supposed to a drawing of an ancient hebrew harp
(Nevel in Hebrew, Nabla in Aramaic).


From: Alison Bogardo <>
Date: Thu, 22 Jan 98 11:00:42 -0500
Subject: W.T. and Idalia Reid Prize


SIAM will present the W.T. and Idalia Reid Prize at the 1998
SIAM Annual Meeting in Toronto, Canada, July 13-17. The
award will be given for research in, or other contributions
to, the broadly defined areas of differential equations and
control theory. The prize may be given either for a single
notable achievement or for a collection of such

The prize is awarded to any member of the scientific
community who meets the general guidelines of the prize
description above.

The award consists of an engraved medal and a $10,000 cash

A letter of nomination, including a description of
achievement(s) should be sent BY FEBRUARY 1 to:

Professor John A. Burns
Chair, Reid Prize Selection Committee
c/o Allison Bogardo
3600 University City Science Center
Philadelphia, PA 19104-2688
Telephone: 215-382-9800
Fax: 215-386-7999


From: Vladik Kreinovich <>
Date: Sat, 17 Jan 98 17:09:02 MST
Subject: New Book on Interval Computations

Kluwer Academic Publishers, Dordrecht, has just published a book
"Computational Complexity and Feasibility of Data Processing
and Interval Computations" by V. Kreinovich, A. Lakeyev, J. Rohn,
and P. Kahl (ISBN 0-7923-4865-6 November 1997, 472 pp.)

This book is Vol. 10 in the series on Applied Optimization

The publisher's blurb:
The input data for data processing algorithms come from
measurements and are hence not precise. We therefore need
to estimate the accuracy of the results of data
processing. It turns out that even for the simplest data
processing algorithms, this problem is, in general,
intractable. This book describes for what classes of
problems interval computations (i.e. data processing with
automatic results verification) are feasible, and when
they are intractable.


Ch. 1: Informal Introduction: Data Processing, Interval
Computations, and Computational Complexity
Ch. 2: The Notions of Feasibility and NP-Hardness: Brief Introduction
Ch. 3: In the General Case, The Basic Problem of
Interval Computations Is Intractable
Ch. 4: Basic Problem of Interval Computations for
Polynomials of a Fixed Number of Variables
Ch. 5: Basic Problem of Interval Computations For Polynomials of Fixed Order
Ch. 6: Basic Problem of Interval Computations for
Polynomials with Bounded Coefficients
Ch. 7: Fixed Data Processing Algorithms, Varying Data: Still NP-Hard
Ch. 8: Fixed Data, Varying Data Processing Algorithms: Still Intractable
Ch. 9: What If We Only Allow Some Arithmetic Operations in Data Processing?
Ch. 10: For Fractionally-Linear Functions, A Feasible
Algorithm Solves The Basic Problem of Interval Computations
Ch. 11: Solving Interval Linear Systems is NP-Hard
Ch. 12: Interval Linear Systems: Search for Feasible Classes
Ch. 13: Physical Corollary: Prediction is Not Always Possible,
Even for Linear Systems with Known Dynamics
Ch. 14: Engineering Corollary: Signal Processing is NP-Hard
Ch. 15: Bright Sides of NP-Hardness of Interval Computations I:
NP-Hard Means That Good Interval Heuristics Can Solve Other Hard Problems
Ch. 16: If Input Intervals are Narrow Enough, Then
Interval Computations are Almost Always Easy
Ch. 17: Optimization -- A First Example of a Numerical Problem in Which
Interval Methods are Used: Computational Complexity and Feasibility
Ch. 18: Solving Systems of Equations
Ch. 19: Approximation of Interval Functions
Ch. 20: Solving Differential Equations
Ch. 21: Properties of Interval Matrices I: Main Results
Ch. 22 Properties of Interval Matrices II: Proofs and Auxiliary Results
Ch. 23: Non-Interval Uncertainty I: Ellipsoid Uncertainty
and its Generalizations
Ch. 24: Non-Interval Uncertainty II: Multi-Intervals and their Generalizations
Ch. 25: What if Quantities Are Discrete?
Ch. 26: Error Estimation for Indirect Measurements: Interval
Computation Problem is (Slightly) Harder than a Similar
Probabilistic Computational Problem
Appendix A: In Case of Interval (or More General) Uncertainty, No
Algorithm Can Choose the Simplest Representative
Appendix B: Error estimation for
indirect measurements: case of approximately known functions
Appendix C: Interval Computations to Modal Mathematics
Appendix D: Beyond NP: Two Roots Good, One Root Better
Appendix E: Does "NP-Hard" Really Mean "Intractable"?
Appendix F: Bright Sides of NP-Hardness of Interval Computations II:
Freedom of Will?
Appendix G: The Worse, the Better: Paradoxical Computational
Complexity of Interval Computations and Data Processing

Detailed information about the book is available from the Kluwer website

The link to this and other books on interval computations can be found
on the interval computations website (click on books).


From: Willi Schoenauer <>
Date: Thu, 22 Jan 98 10:44:26 +0100
Subject: New Internet Book on Scientific Supercomputing

I have just finished the first 11 chapters (of 18) of a new book

Scientific Supercomputing:
Architecture and Use of Shared and Distributed Memory
Parallel Computers

Willi Schoenauer
Rechenzentrum Universitaet Karlsruhe

Table of Contents:

1. Introduction
2. Prototypes with their Bottlenecks
3. Arithmetic Operations and Memory Bandwidth
4. The CRAY T90
5. The Fujitsu VPP300 (and VPP700)
6. The IBM RS/6000 SP
7. The CRAY T3E and DEC Alpha Processors
8. Performance Analysis
9. Basic Considerations Concerning Data Structures
10. Fortran, Autovectorizatation and Autoparallelization, Programming Models
11. Recurrences

The pages of the book are the scanned hand-written pages of my
manuscript and the contents is that of my lecture on Scientific

The URL is

http: //

The remaining chapters will follow as time permits.

Willi Schoenauer


From: Christoph Helmberg <>
Date: Tue, 20 Jan 1998 12:03:42 +0100
Subject: International Congress of Mathematicians

Dear Colleague:

The Organizing Committee is pleased to announce the availability of

The Second Announcement of
BERLIN, August 18-27, 1998

It can be retrieved from the homepage of the Congress with URL:

ICM'98 is one of the quadrennial congresses held under the auspices of the
International Mathematical Union (IMU). Mathematicians from all countries
gather to discuss recent developments in mathematics that are presented by
leading scientists from all mathematical fields. Responsibility for the
scientific program lies with the Program Committee appointed by IMU. There
will be 21 one-hour Plenary Lectures covering the major areas of mathematics
and about 160 forty-five-minute Invited Lectures in nineteen sections.

The Fields Medals and the Nevanlinna Prize will be awarded during the Opening
Ceremony on the first day of the Congress. This will take place in the
International Congress Center Berlin (ICC). All other scientific events will
be held at Technische Universitaet Berlin. No scientific activities are
scheduled for Sunday, August 23.

The Second Announcement of ICM'98 describes the scientific program and the
social events of the Congress and gives instructions on how to complete the
registration process and obtain accommodation. It contains a call for
contributed short presentations, and provides guidelines regarding the
submission of abstracts.

The Second Announcement also includes advice on how to proceed upon arrival
at airports and railway stations, and it will be accompanied by a brochure
describing the day trips and tours organized by a professional tour and
congress organizer.

Postscript and LaTeX versions of the Second Announcement can be obtained
from the WWW with URL:

or by anonymous ftp from in the subdirectory
pub/IMU/HTML/ICM98/Second_Announcement. The files of interest are Announcement Postscript DIN A4 Postscript US-paper
scndannc.tex LaTeX (no maps) Registration Form Postscript DIN A4 Postscript US-paper
wordregf.doc MS-Word 6.0

We look forward to welcoming you at ICM'98 in Berlin.

Christoph Helmberg (for the ICM'98 Organizing Committee)


From: Georg Heinig <>
Date: Tue, 20 Jan 1998 08:32:16 GMT+3
Subject: Conference in Kuwait on Fourier Analysis and Applications

International Conference
Fourier Analysis and Applications (FAA98)
May 3-6, 1998
Kuwait University Campus, State of Kuwait

The conference is sponsored and organized jointly by

Kuwait University (KU) Kuwait Foundation for the Advancement
of Sciences (KFAS)

- Trigonometric Series and Approximation
- Fourier and Integral Transforms
- Fast Fourier Techniques
- Wavelets
- Applications to Differential and Integral Equations

The following invited speakers have confirmed their participation

M. Annaby (Cairo University, Egypt)
R. Bathia (Indian Statistical Institute, India)
D. Bini (University of Pisa, Italy)
A. Boettcher (TU Chemnitz, Germany)
P. Butzer (RWTH Aachen, Germany)
R. Higgins (Anglia Polytechnic University, UK)
M. Ismail (University of South Florida, USA)
N. Nikolski (University of Bordeaux, France)
S. Saitoh (Gunma University, Japan)
B. Silbermann (TU Chemnitz, Germany)
H.M. Srivastava (University of Victoria, Canada)
G. Strang (MIT, USA)
M. Tasche (University Rostock, Germany)
H. Triebel (University of Jena, Germany)
M. Yamamoto (University of Tokyo, Japan)

On-line registration is available at

For further information please contact:

Dr. Fadhel Al-Musallam
FAA98-Organizing Committee
Department of Mathematics & Computer Science
Kuwait University, P.O.Box 5969 Safat 13060, Kuwait
Tel.: +965-4813129
Fax: +965-4817201
E-Mail :


From: Marc Moonen <>
Date: Tue, 20 Jan 1998 12:09:15 +0100
Subject: Benelux Signal Processing Symposium


March 26-27, 1998, Leuven, Belgium

The first IEEE Benelux Signal Processing Symposium, sponsored by the
IEEE Benelux Signal Processing Chapter, will be held March 26-27, 1998
in the K.U.Leuven Faculty Club, Leuven, Belgium.

The program consists of invited tutorial presentations by
Prof. Peter Grant (University of Edinburgh, U.K.),
*IEEE Signal Processing Society Distinguished Lecturer*
CDMA array processing
Prof. Steve Young (Cambridge University, U.K.),
Large vocabulary continuous speech recognition
Prof. Charles Therrien (Naval Postgraduate School, Monterey, U.S.A.),
*IEEE Signal Processing Society Distinguished Lecturer*
History of the Statistical Theory of Communication: The Lee-Wiener Legacy
Prof. Pierre Duhamel (ENST Paris, France) and
Signal processing in source compression : is PR compulsory ?
Can we reduce artifacts due to DCT coding based on DCT properties?
Prof. Inald Lagendijk (TU Delft, The Netherlands),
Watermarking signal processing techniques for video copy protection
as well as selected oral presentations and informal poster sessions.

A complete program, as well as registration and hotel information,
is available at

Workshop Secretariat:
Mrs. Ida Tassens
Dept. of Electrical Engineering
Kath. Universiteit Leuven
K. Mercierlaan 94
B-3001 Heverlee, Belgium
tel : +32-16-32 17 09,
fax : +32-16-32 19 70


From: Kevin TeBeest <>
Date: Wed, 21 Jan 1998 10:08:36 -0500
Subject: SIAM Great Lakes Section Form on PDEs

The SIAM Great Lakes Section's

"Forum on Numerical Methods for
Partial Differential Equations"

will be held at Kettering University (formerly called the GMI Engineering
& Management Instititue) in Flint, MI on March 14, 1998.

A list of speakers, presentation titles & abstracts, and additional
information may be found at the forum's website:


From: Jose D. P. Rolim <>
Date: Thu, 22 Jan 1998 09:13:09 +0100
Subject: Symposium on Solving Irregularly Structured Problems in Parallel

Call for Papers

Fifth International Symposium on:
Solving Irregularly Structured Problems in Parallel

August 9-11, 1998
NERSC, Lawrence Berkeley National Laboratory
Berkeley, California, USA


The Symposium on Solving Irregularly Structured Problems in Parallel
focuses on algorithmic, applicational and system aspects arising in the
development of efficient parallel solutions to irregularly structured
problems. It aims, in particular, at fostering cooperation among
practitioners and theoreticians in the field. IRREGULAR '98 - to be
held at the National Energy Research Scientific Computing Center
(NERSC), Lawrence Berkeley National Laboratory in Berkeley, California,
USA, on August 9-11, 1998 - is the fifth in the series, after Geneva,
Lyon, Santa Barbara, and Paderborn.


Papers are solicited in all research areas related to the parallelism of
irregular problems, including but not limited to:

o abstract parallel models
o applications
o approximation
o automatic program synthesis
o combinatorial optimization
o compiler optimization
o computational geometry
o data structures
o graph algorithms
o load balancing
o mapping, and scheduling
o memory management
o mesh computations
o numerical algorithms
o parallel I/O
o parallel languages
o randomization
o sparse matrix computations
o symbolic computation
o particle simulations

Important Dates

Submissions: January 30, 1998
Notification: April 12, 1998
Camera ready: May 24, 1998

Further information


Symposium Chairs

A. Ferreira
J. Rolim

Program Committee

H. Simon
S. H. Teng
R. Anderson
S. Ashby
M. Bern
C. Farhat
A. Gramma
H. Hellwagner
Q. Lu
E. Ng
M. Nivat
P. Plassman
A. Rau-Chaplin
S. Rao
C.C. Ribeiro
R. Schreiber
D. Trystram
M. Vajtersic
T. Yang,

Invited Speakers

G. L. Miller
J. R. Gilbert
K. Pingali
M. Valero
B. Hendrickson

Local Organizer

R. Boucher
Lawrence Berkeley National Laboratory, USA


From: Mishi Derakhshan <>
Date: Fri, 23 Jan 1998 14:34:45 +0100 (BST)
Subject: Final Announcement & Programme for the PINEAPL Workshop

Final Programme
PINEAPL Workshop:
A Workshop on the Use of Parallel Numerical Libraries
in Industrial End-user Applications
February 9-10, 1998
Toulouse, France

Day 1: Starts at 9:00 and ends at 18:30

- Welcome and Introduction
- Tutorial session on the use of the NAG Parallel
(and the PINEAPL) Libraries
- Discussion on the use of PRECISE in the PINEAPL Project
- Industrial End-users Presentations:
o Dr Paolo Nobile (PIAGGIO, Italy)
The Use of KIVA-3 Code for the Design of New Two-Stroke Engines
o Dr Pasqua D'Ambra (CPS-CNR, Italy) and Dr Salvatore Filippone
(IBM, Italy) The Integration of the PINEAPL Library in the KIVA-3
Application Software
o Mr Mike Blakemore (British Aerospace, UK)
Utilising the PINEAPL Library for Applications within the fields
of CFD and Electromagnetics
o Mr Thomas Christensen & Mr Lars Sorensen (Math-Tech & DHI, Denmark)
Using Parallel Numerical Library Routines in a Hydrodynamics
o Dr Yves Perreal (Thomson-CSF/LCR, France)
Thomson's Applications in the PINEAPL Project

- Clinic session/users' experience with the use of numerical libraries:
This will be an interactive session in which participants
are invited to consult with experts on the use of parallel
routines in their applications. Participants may give short
presentations of their own for general discussion, as well
as meet directly with parallel library developers.
This session is intended to be useful for those people from:
o Industry and research institutes
o Hardware vendors who would like to discuss the feasibility
of porting the PINEAPL Library on to their parallel systems

Day 2: Starts at 9:00 and ends at 17:30

- Prof Sven Hammarling (NAG, UK)
Welcome and Short Introduction
- Dr Mishi Derakhshan (NAG, UK)
Introduction to the PINEAPL Project
- Prof David Walker (Cardiff, UK)
Problem Solving Environments in Academic and Industrial Research
- Prof Iain Duff (RAL, UK)
The PARASOL Project and Sparse Matrix Applications
- Dr Arnold Krommer (NAG, UK)
Parallel Sparse Linear Algebra Computations Using the PINEAPL Library
- Dr Clemens-August Thole (GMD, GERMANY)
Port of Industrial Applications onto Parallel Architectures during
EUROPORT-1: Overview with Special Emphasis on Numerical Kernels
- Prof F. Chaitin-Chatelin (CERFACS, France)
The PRECISE Tool-box
- Dr Carlo Poloni (Universita' di Trieste, Italy)
Optimisation Needs and Results in the FRONTIER Project
- Prof Sven Hammarling (NAG, UK)
ScaLAPACK: High Performance Software for Dense Linear Algebra

There is no workshop fee but participants must register to attend
because of the space limitation.

Subject to a collaborative agreement, the participant will also
obtain a copy of the recently released PINEAPL Library.

The workshop will be hosted by CERFACS in Toulouse and the URL
for the workshop is:
This page contains information about the workshop and CERFACS,
including travel, hotel information, registration and local
arrangements, etc.


From: Leo Franca <>
Date: Fri, 23 Jan 1998 12:44:51 -0700 (MST)
Subject: Finite Element Circus

The Spring 1998 meeting of the Finite Element Circus will be
held on the campus of CU-Denver on Friday March 27 and Saturday
March 28. For more information on the Finite Element Circus
see the web page:
and for information specific to the Spring 98 meeting see

The circus consists of short talks, the length of the talks depending
on the number of people who wish to speak, with 15 minutes being
typical. The order of presentation is decided randomly at the beginning
of the circus and speakers must be present for the entire meeting.
First-time attendees are not encouraged to speak, so that they have an
opportunity to understand the spirit of the meeting before speaking at a
later circus.

Although there is no registration fee, you MUST register if you plan
to attend the spring meeting. Please fill out the form on the web page Graduate
students are encouraged to attend. Please register as early as possible
so that we can plan in advance.

Leo Franca


From: Aurel Galantai <>
Date: Mon, 26 Jan 1998 12:48:16 +0000
Subject: Numerical Methods and Computational Mechanics

24-27th August 1998

The University of Miskolc,
Miskolc, Hungary

Organized by

Central European Association for Computational Mechanics
Janos Bolyai Mathematical Sociaty
Hungarian Acadamy of Sciences
The Miskolc Committee of the Hungarian Academy of Sciences
University of Miskolc

-- Numerical algebra (sparse and dense linear systems, eigenvalue
problems, nonlinear systems, parallel algorithms, etc.)
-- Numerical solution of differential equations (IVP and BVP,
for ODEs and DAE, difference equations, FEM and BEM,
multigrid, difference methods, spectral methods, parallel
algorithms, etc.)
-- Computational mechanics (FEM, BEM, Optimization, Parallel
algorithms etc)
Forty five minute plenary lectures, thirty minute minisymposium
lectures and twenty minute long contributed talks are planned.
B.SZABO, Washington University in St. Louis, USA
Honorary chairman:
P. ROZSA, Technical University of Budapest, Hungary

R.P.AGARWAL, National University of Singapore, Singapore
I. BABUSKA, The University of Texas, USA
C. BROYDEN, University of Bologna, Italy
M. GRIEBEL, University of Bonn, Germany
M. KLEIBER, Polish Academy of Sciences, Poland
H. MANG, Vienna Technical University, Austria
P. NEITTAANMAKI, University of Jyvaskyla, Finland
E. STEIN, University of Hannover, Germany
W. WENDLAND, Universitat Stuttgart, Germany
T. CZIBERE, University of Miskolc, Hungary
I. KOZAK, University of Miskolc, Hungary
Z. GASPAR, Technical University of Budapest, Hungary
I. PACZELT, University of Miskolc, Hungary

Authors who wish to present a 20-minute contributed lecture should
submit a two-page abstract in English and LATEX format with
article 12pt style. Page size is A4. Authors are kindly asked to
submit their abstracts via e-mail. Deadline: 30th of April, 1998.

Please visit our WWW pages which are regularly updated and provide
you with more information on registration, format requirements,
accommodation travelling, schedule etc.

If you are interested in attending the conference and wish to be on
the mailing list, please SEND NOW, a message to
or a letter to
Institute of Mathematics or Department of Mechanics
University of Miskolc
3515 Miskolc-Egyetemvaros


From: Danielle Graveron <>
Date: Mon, 19 Jan 1998 16:07:38 +0100 (MET)
Subject: Position at Universite Claude Bernard Lyon


EU Programme TMR (Networks), FMRX- CT970160:
Advanced Signal Processing for Medical Magnetic Resonance Imaging and

Job Description:
Researcher (m/f), either Engineer/Doctoral student (preferably) or
postdoc in Computer Science with experience in Graphical User Interface
(GUI), Java/C++ and research interests. Participation in development
of a new GUI for existing MRS spectral analysis software and in
implementation/development of new algorithms for metabolite quantitation.

EU rules restrict eligibility to citizens of its 15 member states, plus
associated countries: Iceland,Israel,Liechtenstein and Norway.

Duration and Start Date: 16 months (1998-03-01)

Place of Work:
Resonance Magnetique Nucleaire (RMN), CNRS UPRESA 5012,
Universite Claude Bernard LYON I-CPE, Villeurbanne, FR.

Contact Person:
Graveron-Demilly, Danielle, Dr, RMN, CNRS UPRESA 5012,
Universite Claude Bernard Lyon I-CPE, FR.
33-4-72431049, 33-4-72448199,

Network Homepage:


From: Ian Sloan <>
Date: Tue, 20 Jan 1998 10:35:27 +0100
Subject: Postdoctoral Positions at University of New South Wales


Two Postdoctoral positions in numerical analysis at the University
of New South Wales in Sydney are currently being advertised. Please contact
one or other of us by e-mail if you might be interested. The positions are
available for up to three years in one case, and up to two
years in the other. The official advertisement follows. The quoted
salaries are in $Australian. The exchange rate, last we heard, was
around $1 Australian to 65 cents US.

Ian Sloan
Bill McLean

School of Mathematics
The University of New South Wales
Sydney 2052

Research Associate - 2 positions


REF. 001NA and REF. 002NA

FIXED TERM - Salary Range: $41,824 - $44,896 per year.

Applications are invited for two research positions supported by the
Australian Research Council (ARC). Applicants will have access to a
modern computing environment, including the facilities of the Parallel
Computing and Visualisation Laboratory at the nearby Australian
Technology Park, Redfern.

This position is funded by the grant "Efficient solution of boundary
value problems", held by Professor I H Sloan and Dr W McLean. This
position is available for up to two years. A strong background in the
analysis of finite or boundary element methods is essential.
Experience with the use and development of scientific software is

This position is funded by the grant "Numerical integration and
approximation in high dimensions", held by Professor I H Sloan, and is
available for a period of up to three years. A good knowledge of
approximation theory or numerical analysis is essential. A good
knowledge of functional analysis and classical analysis and
information-based complexity is desirable.

A PhD or equivalent, a proven capacity for independent research and a
knowledge of EEO/AA principles are essential. Appointment on either a
full-time or fractional basis would be considered. A secondment for a
period of up to one year would also be possible. The positions are
fixed term with the possibility of renewal dependent on funding.
Further information is available from Professor I H Sloan on telephone
(02) 9385 3357, email or Dr W McLean on telephone
(02) 9385 2827 or email (January enquiries will
need to be by email.) Applications close 27 February 1998.

Applicants should submit written applications systematically
addressing the selection criteria, QUOTING REFERENCE NUMBER. Include
business and private telephone numbers; a complete resume, (copies of
academic transcript and qualifications where appropriate); and the
names, addresses (and preferably facsimile numbers) of at least two
referees to: The Recruitment Officer, Human Resources, The University
of New South Wales, Sydney NSW 2052 by applications close date.
Telephone +61 2 9385 2697, fax +61 2 9385 1575. There is no special
form for the application.


From: Erricos John Kontoghiorghes <>
Date: Thu, 22 Jan 1998 20:24:39 +0000
Subject: Special Issue of Computational Statistics & Data Analysis

Guest Editor: Erricos J. Kontoghiorghes


Submissions are invited for a special issue of Computational
Statistics & Data Analysis on Parallel Processing and Statistics. The
aim of the special issue is to make statisticians aware of recent
developments in parallel processing that can be used efficiently to
tackle problems that previously have been considered unsolvable. At
the same time the special issue will bring to the attention of the
parallel processing community the various computer intensive and
large-scale statistical problems with the ultimate aim of promoting
research in parallelism and statistics.

The special issue will consider papers addressing the design, analysis
and implementation of parallel algorithms for solving statistical
problems. Papers dealing with theoretical and practical issues
associated with parallel statistical algorithms, the impact of
parallelism on statistics and specific applications involving
parallelism and statistics will be considered for the peer review
sections of the journal. Software tutorial and reviews, products from
software organizations and supercomputer vendors, book reviews and
other relevant information on parallelism and statistics will be
considered for publication in the the fourth section of the journal
SSN (Statistical Software Newsletter).

Important Dates

* Submission Deadline: September 1, 1998.
* Acceptance Decision: February 1, 1999.
* Final Version Due: March 1, 1999.
* Publication Date: July, 1999 (tentative)


The focus of the papers submitted to the special issue must contain a
parallel computing and statistical component. Authors who are
uncertain as to the suitability of their papers for the special issue
should contact the special issue editor. All papers submitted must
contain original unpublished work that is not being submitted for
publication elsewhere.Instructions to authors and general information
about the Computational Statistics & Data Analysis,the official
journal of the International Association of Statistical Computing
(IASC), which is published by Elsevier North-Holland can be found in

Submission electronically is encouraged. Please e-mail a postscript
file of your manuscript together with a plain text cover letter to Authors unable to submit
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Emile-Argand 11
CH-2007 Neuchatel



From: Beth Schad <>
Date: Tue, 20 Jan 98 10:49:41 -0500
Subject: Contents, SIAM Journal on Numerical Analysis

SIAM Journal on Numerical Analysis
Volume 35, Number 1, FEBRUARY 1998

Numerical Solution of the Schrodinger Equation in a Wavelet Basis for
Hydrogen-like Atoms
Patrick Fischer and Mireille Defranceschi

Approximation of the Solution to a System Modeling Heatless Adsorption
of Gases
C. Bourdarias

Timestep Acceleration of Waveform Relaxation
B. Leimkuhler

A Quasi-Monte Carlo Scheme Using Nets for a Linear Boltzmann Equation
Christian Lecot and Ibrahim Coulibaly

Inversion Formulas for the Discretized Hilbert Transform on the Unit
Claus B. Schneider

On Product Integration with Gauss-Kronrod Nodes
Sven Ehrich

A Nonconforming Finite Element Method for the Stationary Navier-Stokes
Ohannes A. Karakashian and Wadi N. Jureidini

Multigrid Methods for the Pure Traction Problem of Linear Elasticity:
Mixed Formulation
Chang-Ock Lee

The Fully Discrete Legendre Spectral Approximation of Two-Dimensional
Unsteady Incompressible Fluid Flow in Stream Function Form
Guo Ben-Yu and He Li-Ping

The Immersed Interface Method for Nonlinear Differential Equations
with Discontinuous Coefficients and Singular Sources
Andreas Wiegmann and Kenneth P. Bube

On the Stability of the Abramov Transfer for Differential-Algebraic
Equations of Index 1
Thomas Petry

A Two-Level Preconditioner for Schrodinger-Type Singular Elliptic
Serguei Maliassov

A Fast Iterative Algorithm for Elliptic Interface Problems
Zhilin Li

Application of an Ultra Weak Variational Formulation of Elliptic PDEs
to the Two-Dimensional Helmholtz Problem
Olivier Cessenat and Bruno Despres

Inner and Outer Iterations for the Chebyshev Algorithm
Eldar Giladi, Gene H. Golub, and Joseph B. Keller

First-Order System Least Squares (FOSLS) for Planar Linear
Elasticity: Pure Traction Problem
Zhiqiang Cai, Thomas A. Manteuffel, Stephen F. McCormick, and Seymour
V. Parter

Finite Element Analysis of the Landau-de Gennes Minimization Problem
for Liquid Crystals
Timothy A. Davis and Eugene C. Gartland, Jr.

Uniformly Superconvergent Approximations for Linear Two-Point Boundary
Value Problems
Hongsung Jin and Steven Puress

Finite Element Analysis of Microstructure for the Cubic to Tetragonal
Bo Li and Mitchell Luskin

Least-Squares Finite Element Approximations to Solutions of Interface
Yanzhao Cao and Max D. Gunzburger

The Petrov-Galerkin and Iterated Petrov-Galerkin Methods for
Second-Kind Integral Equations
Zhongying Chen and Yuesheng Xu


From: Ira Smiley <>
Date: Tue, 20 Jan 98 11:59:26 -0500
Subject: Contents, SIAM Journal on Applied Mathematics

SIAM Journal on Applied Mathematics
Volume 58, Number 1, FEBRUARY 1998

On a Variational Principle for the Drag in Linear Hydrodynamics
B. I. M. ten Bosch and A. J. Weisenborn

Shock-Wave Solutions in Closed Form and the Oppenheimer--Snyder Limit
in General Reality
Joel Smoller and Blake Temple

Singularities in Hele--Shaw Flows
Qing Nie and Fei Ran Tian

Heat Conduction in Fine Scale Mixtures with Interfacial Contact Resistance
Robert Lipton

Numerical Approximation for Functionals of Reflecting Diffusion Processes
C. Costantini, B. Pacchiarotti, and F. Sartoretto

Bifurcation Analysis for Phase Transitions in Superconducting Rings
with Nonuniform Thickness
Jorge Berger and Jacob Rubinstein

A Method of Images for the Evaluation of Electrostatic Fields in
Systems of Closely Spaced Conducting Cylinders
Hongwei Cheng and Leslie Greengard

Population Dynamics of Synaptic Release Sites
Richard Bertram and Arthur Sherman

Global Stability in Chemostat-Type Competition Models with Nutrient Recycling
Shigui Ruan and Xue-Zhong He

Coexistence Region and Global Dynamics of a Harvested Predator-Prey System
Guoren Dai and Moxun Tang

On the Asymmetric May--Leonard Model of Three Competing Species
Chia-Wei Chi, Sze-Bi Hsu, and Lih-Ing Wu

Three-Dimensional Competitive Lotka--Volterra Systems with No Periodic Orbits
P. van den Driessche and M. L. Zeeman

Convergence Criteria for Attracting Cycles of Newton's Method
Stanley Ocken

Moment Lyapunov Exponent and Stability Index for Linear Conservative
System with Small Random Perturbation
R. Khasminskii and N. Moshchuk

Heavy Traffic Analysis of a Markov-Modulated Queue with Finite
Capacity and General Service Times
Charles Knessl and Charles Tier

Application of the Pad=E9 Method to Solving the Noisy Trigonometric
Moment Problem: Some Initial Results
Riccardo March and Piero Barone


From: Heinz Engl <>
Date: Wed, 21 Jan 1998 17:56:46 MET
Subject: Contents, Surveys on Mathematics for Industry

Surveys on Mathematics for Industry (Springer Vienna/New York)
Vol. 7/3, Table of Contents

J.T. Ottesen, Mathematical models in physiology: the cardiovascular system and
its regulation, 167-168

G. Ohlen, B. Wohlfahrt and M.Christensson, Simulation of spiral waves in a
piece of myocardial tissue, 169-175

J.L. Palladino, J.P. Mulier, and A. Noordergraaf, Closed-loop circulation model
based on the Frank mechanism, 177-186

J.T. Ottesen, Nonlinearity of baroreceptor nerves, 187-201

M. Ursino and S.Cavalcanti, A mathematical model of the carotid-baroreflex
control in pulsatile conditions, 203-220

S. Cavalcanti and M. Ursino, Dynamical modelling of sympathetic and
parasympathetic interplay on the baroreceptor heart rate control, 221-237

F. Kappel, S. Lafer, and R.O. Peer, A model for the cardiovascular system under
an ergometric workload, 239-249

J.T. Ottesen and A. Noordergraaf, The virtue of creating mathematical models,


From: Ute McCrory <>
Date: Thu, 22 Jan 1998 17:16:41 +0100
Subject: Contents, Computing and Visualization in Science

Journal "Computing and Visualization in Science"
Table of Contents of volume 2 (due March 1998)

M. Dellnitz, O. Junge: "An adaptive subdivision technique
for the approximation of attractors and invariant measures"

U. Maas: "Efficient calculation of intrinsic low-dimensional
manifolds for the simplification of chemical kinetics"

V.H. Schulz: "Solving discretized optimization problems by
partially reduced SQP methods"

Chr. Wagner: "Numerical methods for diffusion-reaction-
transport processes in unsaturated porous media"

M.J. Noot, A.C. Telea, J.K.M. Jansen, R.M.M. Mattheij: "Real
time numerical simulation and visualization of electrochemical drilling"


End of NA Digest