NA Digest Sunday, June 15, 1997 Volume 97 : Issue 24

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: G. W. Stewart <>
Date: Mon, 9 Jun 1997 09:03:33 -0400 (EDT)
Subject: Matrix Algorithms I: Basic Decompostitions

I have completed the first volume, Basic Decompositions, of my series
on matrix algorithms and have posted it, along with revisions of the
first four chapters, in my ftp directory. Copies may be obtained by
anonymous ftp from in pub/survey

or through my home page at

The five chapters of the book are entitled

Matrices, Algebra, and Analysis
Matrices and Machines
Gaussian Elimination
The QR Decomposition and Least Squares
Rank Reducing Algorithms

Please note that this is only a first draft, which still needs

I am happy to announce that SIAM has agreed to publish the series.
They have kindly consented to allow the current draft to be
distributed over the web until the book appears. I have benefited
greatly from past comments by my readers, and I hope they will
continue. Please feel free to make copies for your personal use.
However, if you want to make copies to distribute to a class, please
ask permission (it will generally be forthcoming).

Pete Stewart


From: Martin Peters <>
Date: Mon, 9 Jun 1997 10:08:15 +0100
Subject: New Book on Visualization and Mathematics

New Book
Visualization and Mathematics
Experiments, Simulations and Environments
H.-C. Hege, ZIB Berlin, Germany; K. Polthier, Technical University of
Berlin, Germany (Eds.)
Approx. 385 pp. Hardcover DM 138,-; US-$ 99.-
ISBN 3-540-61269-6, due July 1997

Visualization and mathematics have begun a fruitful relationship,
establishing links between problems and solutions of both fields. In
some areas of mathematics, like differential geometry and numerical
mathematics, visualization techniques are applied with great success.
However, visualization methods are relying heavily on mathematical

Applications of visualization in mathematical research and the use of
mathematical methods in visualization have been topic of an interna-
tional workshop in Berlin in June 1995. Selected contributions treat
topics of particular interest in current research. Experts are repor-
ting on their latest work, giving an overview on this fascinating new
area. The reader will get insight to state-of-the-art techniques for
solving visualization problems and mathematical questions.


Part I. Visualizing Mathematics (with contributions by K.A.Brakke,
G.Chappell, G.Francis, C.Hartman, B.Hausmann, R.B.Kusner, G.Martin,
R.J.Morris, D.Roseman, M.Ruhl, D.Saupe, H.-P.Seidel, B.Slopianka,
I.Sterling and J.M.Sullivan).

Part II. Geometric Algorithms and Experiments (with contributions by
K.A.Brakke, G.Gro~e-Brauckmann, D.H.Huson, B.Oberknapp, K.Polthier
and J.M.Sullivan).

Part III. Visualization Algorithms and Data Structures (with contri-
butions by H.Battke, H.-C.Hege, M.Kohler, H.M}ller, M.Rumpf, B.Schupp
and D.Stalling).

Part IV. Visualization Environments (with contributions by M.Alefeld,
E.Beier, M.Dewar, D.W.Fellner, C.Gunn, J.Haber, A.Heim, J.Lemordant,
A.Ortmann, U.Pinkall, K.Polthier, U.Schwarz, J.Walton);

Part V. Visualization and Simulation Techniques (with contributions
by R.Beck, P.Deuflhard, Th.Ge~ner, H.C.Hege, D.Kr|ner, R.Malladi,
M.Seeba~, J.A.Sethian, D.Stalling and M.Wierse).

Appendix: Color Plates (28 pp.)

Contact Person at Springer-Verlag:

Dr. Martin Peters
Mathematics Editor phone: *49-6221-487 409
Springer-Verlag fax: *49-6221-487 355
Tiergartenstr. 17 e-mail: peters
69121 Heidelberg


From: Bertil Gustafsson <>
Date: Wed, 11 Jun 1997 15:43:31 +0200 (MET DST)
Subject: Almost New Book on Time Dependent Problems and Difference Methods

(Almost) new book:

B. Gustafsson, H.-O. Kreiss, J. Oliger: "Time Dependent Problems and
Difference Methods", John Wiley and Sons. ISBN 0-471-50734-2.

Table of contents

PART I (Problems with periodic solutions)
1. Fourier series and trigonometric interpolation
2. Model equations
3. Higher order accuracy
4. Well-posed problems
5. Stability and convergence for numerical approximations of linear
and nonlinear problems
6. Hyperbolic equations and numerical methods
7. Parabolic equations and numerical methods
8. Problems with discontinuous solutions

PART II (Initial-boundary-value problems)
9. The energy method for initial-boundary-value problems
10. The Laplace transform method for initial-boundary-value problems
11. The energy method for difference approximations
12. The Laplace transform method for difference approximations
13. The Laplace transform method for fully discrete approximations:
Normal mode analysis


From: Heinz W. Engl <>
Date: Sat, 14 Jun 1997 08:55:20 MET_DST
Subject: New Book on Inverse Problems

The following book has just appeared:

Heinz W.Engl, Alfred K. Louis, William Rundell (eds.)
Inverse Problems in Medical Imaging and Nondestructive Testing
Springer Vienna/New York, ISBN 3-211-83015-4

The volume contains 14 papers presented at our Oberwolfach meeting on this
topic that took place in February 1996.

Prof.Dr.Heinz W. Engl E-Mail:
Institut fuer Industriemathematik
Johannes-Kepler-Universitaet Phone:+43-(0)732-2468...,ext.9219 or 693,
Altenbergerstrasse 69 secretary: ext.9220; as Dean: ext.312
A-4040 Linz Fax:ext. 855, in Dean's affairs:ext.396
Oesterreich / Austria home phone: +43-(0)732-245518
World Wide Web:


From: Tom Peacock <>
Date: Thu, 12 Jun 1997 15:18:50 +0100
Subject: Duff and Watson Book Available at SIAM Meeting

The State of the Art in Numerical Analysis by Duff & Watson, special shipment
for the SIAM 45th Anniversary Meeting (14-16 July, Stanford)

NA DIGEST #22 (1st June) gave full details of this new book and how readers can
buy it at a much reduced price (GBP45 instead of GBP95). The publisher has had
such a great response from people wanting to buy the book that they are now
trying to bring forward the printing date, air-freight copies directly to the
SIAM Meeting and extend the special price for the duration of meeting.

If you are going to the meeting and you want us to reserve your copy of the
book in to collect and pay for in $s at the OUP booth, please email me at OUP
( by 26th June and I will then arrange to have enough copies
sent over for the meeting.

If you are not going to the SIAM Meeting you can still buy the book at the
special price, but will need to contact me directly and pay 10% extra for

Best wishes
Tom Peacock
Oxford University Press

(for your info: GBP45 is about US$75)


From: Ismail Khalil <isk@parker.EECS.Berkeley.EDU>
Date: Mon, 9 Jun 1997 08:48:05 -0700 (PDT)
Subject: Seeking FEM Mesh Generation Tool

Does anybody know if there is a FEM mesh generation
tool with automatic remeshing capabilities. I need
something similar to "freefem" (by Pirronneau et. al)
that can automatically remesh a region as an optimization
algorithm changes the placement of a fixed number of
holes in its interior.

Ismail Khalil Bustany
Radiation Oncology Dept. Tel: (415) 476-9102
Box 0226 Fax: (415) 502-5175
UCSF Voice: (415) 476-3605
San Francisco, CA 94143


From: Bill McColl <>
Date: Thu, 12 Jun 97 10:24:55 BST
Subject: BSPLib Parallel Programming Library

Parallel programmers looking for a simple but efficient approach to
developing scalable applications software may be interested in the new
BSPlib programming library. BSPlib is an alternative to MPI and PVM, and is
based on the BSP model of parallel computation. It is already being used by
a rapidly growing community of software developers in universities and in

The BSP approach to parallel programming is applicable to all kinds of
parallel architecture: distributed memory machines, shared memory
multiprocessors, and networks of workstations. It provides a consistent,
and very general, framework within which to develop portable parallel
software for scalable architectures. One particular advantage of BSP is
that it provides _predictable_ high performance.

BSPlib can be used with C or Fortran. It supports SPMD parallelism based on
efficient one-sided communications. The core library (excluding collective
communications) consists of just 20 primitives.

The final BSPlib Definition (with C or Fortran Examples) can be obtained
from any one of the WWW sites listed below. Information on implementations
and their availability will be posted to this newsgroup in the next few days.

Bill McColl (for The BSPlib Team)

BSP Worldwide (Oxford, England)

Harvard University (Cambridge, MA)

Suffolk University (Boston, MA)

University of Central Florida (Orlando, FL)

Utrecht University (The Netherlands)


From: SIAM <>
Date: Tue, 10 Jun 97 11:13:36 EST
Subject: SIAM Writing Contest

Aspiring Writers Invited to Enter SIAM Contest
If a mathematician can win a nation-wide short story contest---in The New York
Times Magazine---isn't it reasonable to think that more than a few SIAM News
readers would be capable of writing interesting, lively, accessible articles
about mathematics?
On the assumption that they would, SIAM has decided to hold its own contest:
Readers are invited to submit articles describing work in applied or
computational mathematics for publication in SIAM News. The subject can be any
important, innovative application of mathematics. The articles should be no
longer than 2500 words, and they should be written at the level of the articles
on technical subjects that now appear in SIAM News, i.e., they should be
understandable to the entire applied and computational mathematics community.
The best article submitted will be published in SIAM News, and its author will
receive an award of $1000.
Keeping the mathematics community up to date on new developments in areas that
may not now be covered in SIAM News will be an obvious benefit, says Joyce
McLaughlin, chair of the SIAM Board of Trustees, but "we're also holding the
contest to encourage people to learn to communicate about developments in
mathematics in nontechnical terms." Ultimately, she continues, "we want to
generate materials that will demonstrate the contributions of mathematics to a
wide range of nonmathematicians," including officials in Washington, mid- and
upper-level managers in industry, students at all levels, and scientifically
inclined members of the general population.
Any interested nonprofessional writer is eligible for the contest. Entries
should be directed to the editor of SIAM News (; the deadline
for receipt of submissions is September 12, 1997. Additional information,
including guidelines for the preparation of articles, can be obtained from the
SIAM News editor.
As to the virtuoso short story writer mentioned earlier, he's Robert L.
Phillips, an applied mathematician (and SIAM member) who has been employed at
Decision Focus Inc., in Mountain View, California, since 1977. Laid up after
knee surgery when he read about the Times contest, in which readers were invited
to complete a short story begun by the fiction writer Nicholson Baker, Phillips
had an idea, wrote it up, and sent it in, not imagining that he would win. His
winning conclusion, which appeared in the magazine on August 18, 1996, was
assessed by the judge of the 2000 entries as the "most faithful to Baker's blend
of weird science and wit."
Phillips, whose weird science featured an ingenious twist on the secretion of
trichogenic ooze by Baker's cave-dwelling oysteroids, says that recent career
twists have put a crimp in both his writing and mathematical careers. Named
president and CEO of DFI in September 1996, he "still thinks like an applied
mathematician" but has less time to work on the airline scheduling and other
transportation problems in which he had specialized. Nonetheless, he admits to a
tendency "to bug the people who are doing the mathematics" and asked some pretty
thoughtful questions about the SIAM article contest.


From: Hugo Scolnik <>
Date: Sun, 08 Jun 1997 09:33:52 ARG
Subject: Computational Engineering in Systems Applications

I E E E - S M C
C E S A'98 I M A C S M U L T I C O N F E R E N C E
Computational Engineering in Systems Applications
Nabeul-Hammamet, Tunisia, April 1-4, 1998

General Chair
Chairmen :
P. Borne (France), M. Ksouri (Tunisia)

Vice-Chairman :
A. El Kamel (France / Tunisia)

I am organizing two sessions for this conference in the following areas:

1) Iterative methods for solving large sparse systems of linear equations
2) Solving large eigenvalue problems

Deadlines :

September 15, 1997
Submission of draft papers or extented abstracts (3 copies).
September 30, 1997
Submission of invited sessions.
December 1, 1997
Notification of acceptance.
January 15, 1998
Submission of camera ready papers.

The Multiconference will include both submitted papers and invited sessions.
or submitted papers, potential authors are required to present three copies
of a draft paper or at least of an extended abstract (about 3 usual size
pages) including five keywords to specify the concerned scientific area.

In order to avoid "shadow papers", authors are asked to confirm their
participation and to regulate the registration fees before having their
accepted paper published in the proceedings of the conference.

Authors regulating their registration fees on site, will have their
communications published in supplementary proceedings.

English is the official language of the Multiconference.

The Multiconference on "Computational Engineering in Systems Applications"
CESA'98 is sponsored by IMACS and co-sponsored by IEEE/SMC.

The aim of this important meeting is to make the state of the art of
the various theoretical and practical aspects of computational engineering
involved in system theory and its applications.

During this conference several activities will take place. For instance:
Symposium on Modeling, Analysis and Control
Symposium on Industrial and Manufacturing Systems
Symposium on Applied Mathematics and Optimization
Symposium on Signal Processing and Cybernetics

e-mail addresses: (if you send attachments)

Mailing address: Professor Hugo D.Scolnik
Departamento de Computacion
Ciudad Universitaria
(1426) Buenos Aires

Fax: (541) 314 8973


From: Nick Higham <>
Date: Tue, 10 Jun 1997 11:52:48 +0100
Subject: Numerical Analysis and Computers Conference in Manchester

Sunday 21st June 1998 is the 50th birthday of the Manchester
Mark 1---the world's first stored-program computer. To mark the
occasion, a programme of celebration organised by local
computer scientists in conjunction with the City of Manchester
will be held at the Bridgewater Hall in Manchester on Wednesday 17th June.
In addition, the University of Manchester is organizing a conference
on the history of computing at Manchester and on the future
directions of Computing Science on Thursday 18th and
Friday 19th June, 1998.

Nick Higham and David Silvester of the Manchester Centre for
Computational Mathematics (MCCM) are planning a meeting titled

Numerical Analysis and Computers---50 Years of Progress

to precede the above events on Tuesday 16th June and the morning of
Wednesday 17th June. The aim of the meeting is to describe how
numerical analysis has been influenced by the development of computers
over the last fifty years. The meeting will comprise invited talks
covering key areas including numerical linear algebra, optimisation,
PDEs and computational fluid dynamics, and will contain historical
remarks, perspectives and anecdotes. The influence of
high-performance computing on the future of numerical analysis will
also be assessed. A dinner will be held on the Tuesday evening.

The speakers will include
Jack Dongarra (Knoxville), Ian Gladwell (Dallas)
Gene Golub (Stanford), Cleve Moler (The MathWorks),
Bill Morton (Oxford), Mike Powell (Cambridge),
Nick Trefethen (Cornell/Oxford).

Further details will be available in due course from the
MCCM Web page at

Nick Higham


From: Hershkowitz Daniel <>
Date: Thu, 12 Jun 1997 10:50:55 +0300 (IDT)
Subject: ILAS Activities Honoring Hans Schneider

Special issues honoring Hans Schneider

There are several events planned on the occasion of the 70th birthday
of Hans Schneider (January 24th, 1997), ILAS founder and past president.

ELA (The Electronic Journal of Linear Algebra - an ILAS publication), announces
a special issue dedicated to Hans Schneider. Submissions for the special issue
of ELA will be accepted until November 1, 1997, with publication date in the
first half of 1998. See for submission
information. A copy of the special issue will be presented to Hans during the
ILAS 98 conference.

The International Linear Algebra Society (ILAS) will hold its 1998 conference in
Madison, Wisconsin, on June 3-6, 1998, honoring Hans Schneider and his many
contributions to the linear algebra community.
As customary, the proceedings of this conference will be published as a special
issue of Linear Algebra and its Applications (LAA) and will be dedicated to Hans
Schneider. The special editors are Bryan Cain, Biswa Datta, Moshe Goldberg, Uri
Rothblum, and Daniel Szyld. Information about submissions to the LAA special
issue will be given in the first mailing for the conference. The deadline is
expected to be sometime in late 1998.


From: David F Griffiths <>
Date: Thu, 12 Jun 1997 10:05:33 +0100
Subject: Dundee NA Conference

17th Biennial Conference on Numerical Analysis
University of Dundee, June 24 - 27, 1997

The program for the conference has been finalised and may be accessed
through the conference web pages:

Contact David Griffiths via email for availability of late registrations.

David F Griffiths Tel: Direct +44 (1382) 344467
Dept of Maths & Computer Science Tel: Dept Office +44 (1382) 344471
The University FAX: +44 (1382) 345516
Dundee DD1 4HN email:
Scotland, UK


From: Peter Jimac <>
Date: Fri, 13 Jun 1997 09:55:37 +0100
Subject: Course in CFD at University of Leeds

Centre for Computational Fluid Dynamics
M.Sc. in Computational Fluid Dynamics

The University of Leeds Centre for Computational Fluid Dynamics offers
a one-year Modular M.Sc. course in CFD. This is an interdisciplinary
course which comprises of a solid foundation of fundamental studies
upon which is built specialist applications in the various fields
embraced by the subject areas of the seven Departments and Schools
supporting the Centre: Applied Mathematical Studies, Chemical Engineering,
Chemistry, Computer Studies, Earth Sciences, Fuel and Energy and Mechanical

The course will appeal to those students wishing to acquire a good foundation
of fundamental understanding in the subject and become equipped with the
specialist computational techniques for use in a wide range of applications.
The training aims to equip students for employment in Research, Design and
Development over any branch of engineering or science.

Candidates should have a good honours degree or equivalent in subjects
allied to those of the constituent Departments/Schools of the Centre and
no previous knowledge of CFD is required. The course is supported by the
of Eurpoean Union countries.

For further information and/or an application form please contact:

Dr. Peter Jimack
Deputy Director of the Centre of Computational Fluid Dynamics
School of Computer Studies, The University of Leeds, Leeds LS2 9JT
(Tel. +113 233 5464, Fax +113 233 5468,


From: Bette Byrne <>
Date: Fri, 13 Jun 97 10:15:46
Subject: Numerical Methods for Fluid Dynamics and Bill Morton Prize


31 MARCH - 3 APRIL 1998


Organising Committee
Prof M J Baines (Reading)
Dr M B Giles (Oxford)
Dr M T Arthur (DRA, Farnborough)
Dr C L Farmer (GeoQuest)
Prof A G Hutton (Nuclear Electric)

Invited Speakers include:
Prof V Casulli (Trento)
Dr M J P Cullen (Meteorological Office)
Dr D Dritschel (Cambridge)
Dr M B Giles (Oxford)
Prof A Jameson (Princeton/Stanford)
Prof C R Johnson (Utah)
Prof E R Johnson (London)
Prof P Moin (Stanford)
Prof J Peraire (MIT)
Prof B Perthame (Paris)
Dr N Sandham (London)
Prof B Van Leer (Michigan)
Dr P R Voke (Surrey)
Dr D L Williamson (NCAR, Boulder)

This is the sixth international conference on CFD
organised by the ICFD (Institute for Computational
Fluid Dynamics), a joint research organisation at the
Universities of Oxford and Reading. The aim of the
conference, as in previous years, is to bring together
mathematicians and engineers and other scientists in
the field of computational fluid dynamics to review
recent advances in mathematical and computational
techniques for modelling fluid flows.

The subject area is very large with many active
researchers in industry, government laboratories and
universities working on a wide variety of methods and
applications. The conference will cover all areas of
CFD but it is hoped to emphasise three main areas:




In addition to invited lectures the programme will
include contributed talks of twenty minutes and poster
sessions. These will be selected mainly on the basis
of their likely contribution to the above themes.


A feature of the meeting will be the second award of
"The Bill Morton Prize" for a paper on CFD by a young
research worker. The Prize paper, which should be
suitable for a 30 minute talk and which will be
presented by the author at a special session of the
Conference, will be chosen from eligible contributed
papers submitted for the Conference. The prize will
be presented at the Conference dinner.

The author should be under the age of 31 on 3 April
1998. Each candidate should include a statement of
his/her age on that date and should indicate that
he/she would be available to present his/her paper at
the Conference.


Two page abstracts for contributed papers should be
submitted by 5 December 1997, stating a preference
for oral or poster presentation. Notification of
acceptance will be given by 30 January, 1998.
Papers accepted for oral presentation will be required
at the meeting for publication in the proceedings,
immediately after the Conference.


Abstracts and enquiries regarding the conference
should be addressed to:

Mrs B Byrne
Oxford University Computing Laboratory
Wolfson Building, Parks Road
Oxford OX1 3QD

Telephone: +44-1865-273883
Facsimile: +44-1865-273839

Bette Byrne
ICFD Secretary
Oxford University Computing Laboratory
Wolfson Building
Parks Road

Tel: 44-1865-273883


From: George Corliss <>
Date: Sat, 14 Jun 1997 15:30:49 -0500 (CDT)
Subject: Research Assistantships at Marquette University

Industrial-Based Graduate Research Assistantships
Department of Mathematics, Statistics, and Computer Science
Marquette University, Milwaukee, Wisconsin, USA

The Marquette University Department of Mathematics, Statistics,
and Computer Science has openings for two Industrial-Based
Graduate Research Assistantships in industrial and applied
mathematics. Students will pursue a Master of Science degree
while working closely with industrial sponsors Johnson Controls
and Penta Technologies. One assistantship requires skills in
operations research, the other in optimization and database

Number of openings: two
Start date: August 15, 1997
Annual stipend: $12,000 + tuition,
jointly funded by NSF and industrial partners
Students from groups traditionally underrepresented in the field
are especially sought.

The NSF funding requires students to be citizens of the USA
or lawfully admitted permanent resident aliens.

An on-site interview will normally be required.

For information: To apply:
Dr. George Corliss The Graduate School Marquette University
414 288-6599 PO Box 1881
Milwaukee, WI 53201-1881
414 288-7137 Fax: 414 288-1902

For further information:


From: Omar Hamed <F40M001@KSU.EDU.SA>
Date: Sun, 15 Jun 97 10:03:01 SLT
Subject: Positions At King Saud University

The Department of Mathematics at King Saud University is seeking to fill
positions which are anticipated to be available during academic years
1997-98 and 1998-99 in the following areas:
Algebra, Analysis, Topology, Differential Equations, Discrete Mathematics
Computational Mathematics.

The candidates sould have strong backround in research and
teaching, and they are expected to supervise MSc and PhD students.Hence
ipreference will be for prefossors and associate prefossors (both male
and female). Salaries will range from 2500$(US) to 5000$ (tax free)
per month. There is a housing allowance and free air tickets once a
year. The contact is for one year and is renewable.

N.B. C.V's must be snail mailed not at all e-mailed.

For further informations contact:

Chairman, , Tel: +966 1 4676513 Office
Department of Mathematics, 4676511 Secretary
King Saud University, Fax: +966 1 4676513
P. O. Box 2455, Riyadh 11451 E-mail: f40m043@KSU.EDU.SA


From: John-Bill Dold <>
Date: Mon, 9 Jun 1997 09:36:05 +0100
Subject: Three EPSRC-funded PhD Studentships at UMIST

Three EPSRC-funded PhD Studentships at UMIST:

working with Professor J W Dold

As a flame propagates it typically generates and leaves behind vorticity,
the level of which depends on such things as the shape of the flame at
the moment that the vorticity is generated. The vorticity that is left
behind therefore retains a "memory" of earlier flame-shapes while it,
nevertheless, continues to influence the flow field at the flame and
therefore its behaviour.

The aim of the project is to model and examine the role of this memory
effect in the evolution of a flame. Some experiments are planned which
will measure vorticity in the burnt gases behind flames and the student
will be able to have some involvement in these experiments.

Anyone interested in applying for this studentship should contact:

Professor J W Dold, Mathematics Department, UMIST, Manchester, M60 1QD
Fax: (+44 161) 200 3669 Tel: (+44 161) 200 3654

working with Professor J W Dold

Interfaces which propagate include such different objects as flames and
meandering rivers, and in general the speed of propagation (the rate at
which any part of the interface moves laterally or in the normal direction
to the interface) can be approximated to be a function of curvature.
Mathematically, the description of the movement of the interface becomes
very interesting when the propagation speed of the interface is a
non-monotonic function of the curvature. Ranges of curvature give rise to
strong instabilities and the dynamics of the interface should involve some
unusual kinds of behaviour.

The aim of the project will be to gain an understanding of both the
dynamics of an interface with non-monotonic propagation and to identify
physical systems with such laws of propagation. In particular, this kind
of behaviour can be predicted for certain kinds of flame-models and an
important part of the project will be the examination of circumstances
that lead to non-monotonic propagation laws.

Anyone interested in applying for this studentship should contact:

Professor J W Dold, Mathematics Department, UMIST, Manchester, M60 1QD
Fax: (+44 161) 200 3669 Tel: (+44 161) 200 3654

LOCALISED MODES IN TOKAMAKS, working with Professor D S Broomhead

We have funding from the latest round of the EPSRC Applied Nonlinear
Mathematics Initiative to employ a graduate student who would like
to obtain a PhD on the above mentioned project. We hope to find a
mathematician who is interested in the theory of nonlinear dynamical
systems and would be happy working on a project which will involve a
mixture in equal proportions of computational analysis of experimental
data sets and the development of new nonlinear analysis techniques
for relating data and models.

For further information please contact

Anyone interested in applying for this studentship should contact:

Professor J W Dold, Mathematics Department, UMIST, Manchester, M60 1QD
Fax: (+44 161) 200 3669 Tel: (+44 161) 200 3680


From: Y. Tourigny <>
Date: Mon, 9 Jun 1997 10:20:23 +0100 (BST)
Subject: Positions at University of Bristol

University of Bristol, Department of Mathematics

Applications are invited for two lectureships (UK analogue
of tenure-track assistant professorships) in applied mathematics
or numerical analysis.

Applicants who would augment the Department's strengths in fluid
dynamics, mathematical physics and numerical analysis, and enhance
our collaboration with other researchers are especially welcome.
Applicants should be committed to excellence in undergraduate and
postgraduate teaching.

For further particulars, consult

Applications quoting reference number F375 with a CV and the names of
two referees etc. should reach the Personnel Office (EO), Senate House,
Bristol BS8 1TH, England, by 25th July, 1997.


From: Caren Tischendorf <>
Date: Mon, 09 Jun 1997 13:32:20 METDST
Subject: Position at Humboldt-University of Berlin

The Institute of Mathematics of the Humboldt-University of Berlin
invites applications for a

Research Position (Numerical Analysis)

in a research project "Investigation of the differential-algebraic
structure of network equations for circuit simulation in order to
stabilize and increase the efficiency of simulation methods" supported
by the Federal Ministry of Education, Science, Research and Technology.
It involves the developmnet, analysis and implementation of reliable
and efficient numerical methods for circuit simulation.

Candidates should have a diploma in Mathematics, very good knowledge
in numerical mathematics and experiences in computer programming using
FORTRAN and C in a UNIX-environment.

The position is available for 1 year (probably extended by 2 years).
The salary and the social benefits are in accordance with German
salary scale BAT-O IIa.

For further information please contact Roswitha Maerz

Applications should be sent within two weeks to

Professor Roswitha Maerz
Humboldt-University of Berlin
Institute of Mathematics
D-10099 Berlin


From: Hans D. Mittelmann <>
Date: Tue, 10 Jun 1997 15:55:18 -0700
Subject: Visiting Positions at Arizona State University


The Department of Mathematics may have several junior visiting faculty
positions for the 1997/98 academic year. Candidates would come for one
or both semesters and would teach 2 courses per semester.
Anyone interested is asked to send an e-mail message as soon as possible
to or a fax to (602) 965-8119.


From: Ekkehard Sachs <>
Date: Wed, 11 Jun 1997 15:22:22 +0200
Subject: Graduate Positions at University of Trier

Graduate positions
in the
Graduate Program
Mathematical Optimization
University of Trier

Scholarships in
Mathematical Optimization are available in the following research areas

- Global Optimization, Multiple Objective Optimization
(Prof. Dr. Reiner Horst)
- Numerical Methods in Optimization and Optimal Control
(Prof. Dr. Ekkehard Sachs)
- Ill-posed Variational Problems
(Variational Inequalities,Semi-infinite Optimization)
(Prof. Dr. Rainer Tichatschke).

The scholarships are DM 1.600
per month according to the regulations of the
German Research Foundation (DFG).

The letter of application should include

- curriculum vitae, copy of degree certificates,
- short description of prospective research program,
- copies of scientific papers (thesis, etc.),
- letter of recommendation.

The applications should be sent until July 1, 1997 to

Prof. Dr. E. Sachs
Sprecher des Graduiertenkollegs
Mathematische Optimierung
Universitaet Trier
D-54286 Trier

For further information see

or contact the office:
Telephone +49 651 201-3477
Telefax +49 651 201-3793


From: Vladik Kreinovich <>
Date: Thu, 12 Jun 97 14:48:35 MDT
Subject: Contents, J. of Uncertainty, Fuzziness, and Knowledge-Based Reasoning

A special issue of the International Journal of Uncertainty, Fuzziness,
and Knowledge-Based Reasoning (IJUFKS) devoted to interval methods in
representing and processing uncertainty has just been published
(its contents is attached).

In addition to regular papers, this issue contains a special section
with abstracts of recent papers on application of interval methods to
knowledge representation. This section regularly appears in IJUFKS.

Information about IJUFKS can be found at

June 1997 (Volume 5, Number 3)

Guest Editors' Introduction: Interval Methods in Representing and Processing
V. Kreinovich (page 221)

A Mathematical Setting for Fuzzy Logics
M. Gehrke, C. Walker, and E. Walker (page 223)

Interval Methods and Fuzzy Optimization
W. A. Lodwick and K. D. Jamison (page 239)

Intervals to Fuzzy Truth-Values: Adding Flexibility to Reasoning Under
R. L. de Mantaras and L. Godo (page 251)

Reasoning with Uncertainty in Deductive Databases and Logic Programs
R. T. Ng (page 261)

Interval-Valued Degrees of Belief: Applications of Interval Computations to
Expert Systems and Intelligent Control
H. T. Nguyen, V. Kreinovich, and Q. Zuo (page 317)

On Capacity Functionals in Interval Probabilities
H. T. Nguyen, N. T. Nguyen, and T. Wang (page 359)

Local Radon-Nikodym Derivatives of Set Functions
J. Harding, M. Marinacci, N. T. Nguyen, and T. Wang (page 379)

Interval Methods in Knowledge Representation (Abstracts of Recent Papers)
V. Kreinovich (page 395)

Calendar of Events
(page 397)


End of NA Digest