NA Digest Sunday, April 13, 2003 Volume 03 : Issue 15

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

Submissions for NA Digest:

Mail to

Information via e-mail about NA-NET: Mail to


From: Arnold Neumaier <>
Date: Thu, 10 Apr 2003 19:25:07 +0200
Subject: Conjugate Gradients in Function Spaces

I got many responses to my query about conjugate gradients
in function spaces; a summary of the responses and a list
of references can be found at

The bottom line is as follows:

CG can be applied to any linear variational problem of the form
Find u in V so that:
a(u,v)=L(v), for all v in V,
where V is a real Hilbert space with norm ||.||,
a:VxV--->R is bilinear, continuous, symmetric with
a(v,v) \ge c||v||^2 for all v in V, with c>0,
and L:V--->R is linear and continuous.

The proof of the "standard" convergence rate estimate goes as
for matrices, but one needs to use the spectral theory for
self-adjoint operators in a Hilbert space. If I-A is compact,
the convergence is superlinear, due to the clustering of
eigenvalues at 1.

Arnold Neumaier


From: M. S. Santhanam <>
Date: Thu, 10 Apr 2003 09:26:17 +0200 (CEST)
Subject: Eigenvalues of a Symmetric Matrix with Constraints

Dear NA-NETters

In my work on correlation matrices with coupled map lattices, I come
across real-symmetric matrices of order n which have the additional
constraint that (a) all the leading diagonal elements are 1 and
(b) all the elements of a given off-diagonal are all the same.
It has the following form :
_ _
| 1 a1 a2 a3 a4 ..... |
| a1 1 a1 a2 a3 ..... |
| a2 a1 1 a1 a2 ..... |
| a3 a2 a1 1 a1 ..... |
| a4 a3 a2 a1 1 ..... |
|_ ............... _|

For a tridiagonal matrix of this structure, analytical expression
exists for its spectra. I would like to know if such an exact or even
an approximate formula is known for the spectra of the matrix given
above. Can something be said about the spectra, if the elements
a1, a2, a3 .... are all less than 1 ?

Thanks in advance for your help.



From: Vincent Sacksteder <>
Date: Tue, 8 Apr 2003 18:38:37 +0200
Subject: Looking for Data About the Reliability of Scientific Calculations

Dear NA community:

I am researching to what extent the numerical results published in the
scientific literature can be regarded as reliable, and am writing you to ask
for any data, experience, and opinions you have on this issue. I am
currently pursueing a Ph.D. in physics after a career in computer science
which focused on the reliability of distributed middleware used by large
enterprises. In my new shoes as a physicist I am confused by the lack of
discussion within the physics community about bugs and about ways of
ensuring the reliability of published numerical results. It seems that
while many physics articles use software to compute various results, perhaps
few authors have implemented the most basic practices for ensuring its
quality - whether planned and repeatable test suites, source code control,
or publication of their code, scripts, and configuration files. (Even when
an author uses lapack or mathematica which are themselves tested, the code,
scripts, and configuration files written by the author may not be tested,
archived, or published.) Moreover, there does not appear to be a structure
for reporting bugs, documenting them, or discussing their prevention. It's
not clear to me how much this is specific to the physics community, or
instead diffused throughout the scientific community.

Perhaps there are some mitigating factors which allow the physics community
to do without these basic practices: perhaps it is more naturally
self-correcting, through the mutual review of many colleagues. Or perhaps
there is an alternative, informal set of practices which are passed along by
word of mouth. Et cetera.

Unfortunately, I have very little data, other than a documentable lack of
discussion of these issues within the physics literature, and some
individual conversations with my colleagues. If any of you has any
additional data, opinions, or experience to share with me, I would really
really appreciate it.

Thank you,
Vincent Sacksteder


From: Ruth Allewelt <>
Date: Wed, 9 Apr 2003 11:30:16 +0200
Subject: New Book on German Industrial Mathematics Projects

New Book, due to appear in April 2003

J=E4ger, W., Universit=E4t Heidelberg, Germany; Krebs, H.-J., Forschungszentrum
J=FClich GmbH, J=FClich, Germany (Eds.)
Mathematics - Key Technology for the Future
Joint Projects Between Universities and Industry

2003 XIV, 732 pp. Hardcover
Springer-Verlag, ISBN 3-540-44220-0
Recommended Retail Price: EUR 99.95 *

Efficient transfer between science and society is crucial for their future
development. The rapid progress of information technology and computer
systems offers a large potential and new perspectives for solving complex
problems. Mathematical modelling and simulation have become important tools
not only in scientific investigations but also in analysing, planning and
controlling technological and economic processes. Mathematics, imbedded in
an interdisciplinary concept, has become a key technology.
The book covers the results of a variety of major projects in industrial
mathematics following an initiative of the German Federal Ministry of
Education and Research. All projects are collaborations of industrial
companies and university-based researchers, and range from automotive
industry to computer technology and medical visualisation. In general, the
projects presented in this volume prove that new mathematical ideas and
methods can be decisive for the solution of industrial and economic

Table of Contents: Motors, Vehicles.- Environmental Technology.- Flow,
Transport and Reactions in Technological Processes.- Optics and Sensors.-
Crystal Growth, Semiconductors.- Electronic Circuits.- Tomography, Image
Analysis and Visualisation.- Statistical Methods in Medical Applications.-
Optimization in Design and Production.- Optimization in Traffic and

A detailed table of contents can be found at


From: Andrew Knyazev <>
Date: Sat, 12 Apr 2003 22:13:51 -0600
Subject: Issue of LAA on Eigenvalue Problems

The final call for papers for the Special issue of
on Large Scale Linear and Nonlinear Eigenvalue Problems.

The deadline for submission of papers is extended to May 15, 2003, and
the special issue is expected to be published in 2004. Papers should be
sent to any of its special editors, preferably by email in the
PostScript format.

In many different application areas there is an increasing and pressing
need for new theory and numerical techniques for solving very large
linear and nonlinear eigenvalue problems.

Recent advances in computer hardware make it feasible to solve
enormously large eigenvalue problems with millions of unknowns, but this
increase in the problem size leads to several new numerical challenges.
First, classical eigenvalue solvers that do not scale linearly with the
problem size have become very expensive for practical problems. This has
increased attention to alternative approaches such as preconditioning
for eigenvalue problems. Secondly, due to the architecture of modern
computers, there is a demand for parallel algorithms that are well
scalable with respect to the number of computing nodes. Moreover the
growth of the problem size often leads to badly conditioned problems,
which require increased algorithm stability and novel tools to estimate
the accuracy of computed eigenvalues and eigenvectors. In some
large-scale applications, one needs to find eigenpairs of a matrix that
is available only implicitly through a function that computes the
corresponding vector-matrix product for a given vector, which thus calls
for "matrix-free" eigensolvers.

This special issue will be open for all papers with significant new
results in Large Scale Linear and Nonlinear Eigenvalue Problems where
either linear algebraic methods play an important role or new tools and
problems of linear algebraic nature are presented. In addition, surveys
papers are very welcome, in particular on specific application areas
where the eigenvalue problems are especially challenging because of the
large size.

Papers must meet the publication standards of Linear Algebra and Its
Applications and will be refereed in the usual way.

Special Editors:

Zhaojun Bai
Dept. of Computer Science
University of California
One Shields Avenue
Davis, CA 95616
Phone: +1-530-752-4874
Fax: +1-530-752-4767

Andrew Knyazev
Department of Mathematics
University of Colorado at Denver
P.O. Box 173364, Campus Box 170
Denver, CO 80217-3364.
Phone: +1-303-556-8442
Fax: +1-303-556-8550

Henk A. Van der Vorst
Mathematical Institute
Utrecht University
Mailbox 80.010
The Netherlands
Phone: +31-30-2533732
Fax: +31-30-2518394


From: Connie Young <>
Date: Wed, 09 Apr 2003 11:41:52 -0400
Subject: Schedule for SIAM/CAIMS Annual Meeting

First Joint Meeting of CAIMS and SIAM
24th Annual Meeting of CAIMS/SCMAI
2003 SIAM Annual Meeting
Queen Elizabeth Hotel, Montreal, QC, Canada
June 16-20, 2003

The program schedule for this meeting is now available at:
For additional information, contact SIAM Conference Department at


From: Endre Suli <>
Date: Sat, 12 Apr 2003 11:37:06 +0100 (BST)
Subject: The First European Finite Element Fair

Isaac Newton Institute for Mathematical Sciences
University of Cambridge, United Kingdom

The First European Finite Element Fair
8-9 May 2003

Organisers: Mark Ainsworth (University of Strathclyde)
Carsten Carstensen (Vienna University of Technology)
Charles M. Elliott (University of Sussex)
Christoph Schwab (ETH Zu"rich)
Endre Su"li (University of Oxford)

in association with the 6-month programme at the Isaac Newton Institute
on Computational Challenges in Partial Differential Equations. Detailed
information is available from the webpage:


From: T. Terlaky <>
Date: Fri, 14 Feb 2003 01:19:12 +0000
Subject: McMaster Optimization Conference

3rd Annual McMaster Optimization Conference:
Theory and Applications
(MOPTA 03)
July 30 - August 1, 2003, McMaster University
Hamilton, Ontario, Canada

The 3rd annual McMaster Optimization Conference (MOPTA 03) will be
held at the campus of McMaster University. It will be hosted by the
Advanced Optimization Lab at the Department of Computing and Software
and it is co-sponsored by the Fields Institute and MITACS.

The conference aims to bring together a diverse group of people from
both discrete and continuous optimization, working on both theoretical
and applied aspects. We aim to bring together researchers from both the
theoretical and applied communities who do not usually get the chance
to interact in the framework of a medium-scale event.

Distinguished researchers will give one-hour long
invited talks on topics of wide interest.
Invited speakers include:

Laurent El Ghaoui, University of California, Berkeley, CA
Lisa K. Fleischer, Carnegie Mellon University, Pittsburg, PA
Minyue Fu, University of Newcastle, NSW, Australia
Masakazu Kojima, Tokyo Institute of Technology, Tokyo, Japan
George Nemhauser, Georgia Institute of Technology, Atlanta, GA
Arkadi Nemirovski, TECHNION, Haifa, Israel
Stratos Pistikopoulos, Imperial College, London, UK
Margaret H. Wright, Courant Institute, New York University, NY

Each accepted paper will be allotted a 25 minute talk.
Authors wishing to speak should submit an abstract via
the conference WEB page in ASCII or LaTex source, to
by April 30, 2003.
Please use "MOPTA 03" in the email subject line.
Notification of acceptance / Program available: May 31, 2003.
Deadline for early registration: June 30, 2003.

On behalf of the Organizing Committee
Tam=E1s Terlaky, (Chair, McMaster University)

Further information is available at


From: Kirsten Wilden <>
Date: Wed, 09 Apr 2003 16:00:54 -0400
Subject: SIAM Conference on Mathematics for Industry

SIAM Conference on Mathematics for Industry: Challenges and Frontiers
The Metropolitan Hotel, Toronto, Canada
June 23-25, 2003

Registration is Now Available.
Pre-Registration Deadline is Friday, May 16, 2003.

Registration for this conference is available at:

For additional information, contact SIAM Conference Department at


From: Darrell Ross <>
Date: Fri, 11 Apr 2003 15:15:09 -0400
Subject: SIAM Conference in Seattle on Geometric Design and Computing

SIAM Conference on Geometric Design and Computing(GD03)
Grand Hyatt Seattle, Seattle, Washington
November, 10-13, 2003

Reminder, the Call for Presentations deadlines for GD03 are fast

Participation deadlines close on MAY 7, 2003
For more information please visit:

For additional information, contact SIAM Conference Department at


From: Zdenek Dostal <>
Date: Tue, 8 Apr 2003 09:08:15 +0100
Subject: Conference in Czech Republic on Industrial Mathematics

Industrial Mathematics and Mathematical Modelling
June 30 - July 4, 2003
Ro nov pod Radho t=ECm
Czech Republic

Organized by

V B - Technical University Ostrava
Institute of Geonics ASCR, Ostrava
University of West Bohemia, Pilsen
Charles University Prague
Mathematical Institute ASCR, Prague

The purpose of the conference is to present mathematical results
that are relevant for effective numerical solution of problems
arising in applications. A special attention will be paid to the
solution of large and complex problems. The program will
include series of 60' lectures presented by invited speakers,
selected contributed 30' talks, posters and supervised student
projects whose results will be presented on the last day. There
will be no sections. The proceedings of the conference will be

Invited speakers:
Charbel Farhat - University of Colorado,
Jaroslav Haslinger - Charles University Prague,
Ulrich Langer - Johannes Kepler University Linz
Jan Mandel - University of Colorado.
Ivo Marek Czech Technical University
The student research projects will be supervised by U. Langer.
Ro nov pod Radho t=ECm is situated in north-east of the Czech
Republic. It is well known for its open air Museum of rural
architecture, the oldest in central Europe. Ro nov, originally a
spa is a popular holiday resort in Beskydy mountains, starting
point of hiking tours and the center of Walachia region.
Conference fee: $150
accommodation+ fullboard: $40 a day
For reduced costs contact tle organizers

More information on

Please come and join!

E-mail --

Department of Applied Mathematics
VSB - Technical University Ostrava
17. Listopadu 15
708 33 Ostrava
Czech Republic
Phone: +420 597 324 355, +420 597 325 227
Fax: +420 596 919 597


From: CFD 2003 Organizing Committee <>
Date: Fri, 11 Apr 2003 11:53:15 -0700
Subject: Conference in Vancouver on CFD

CFD 2003

11th Annual Conference of the CFD Society of Canada /
Soci=E9t=E9 canadienne de CFD

Vancouver, BC
May 28-30, 2003

Announcement and Call for Registration


Three keynotes speakers will headline the technical program:

CFD Design and Optimization of Heart Pumps
Andr=E9 Garon
Dept. of Mechanical Engineering
=C9cole Polytechnique, Montreal

The Development and Application of Global Climate Models
Greg Flato
Canadian Centre for Climate Modelling and Analysis
Victoria, British Columbia

Application of CFD in PEM Fuel Cell Modeling
Hongtan Liu
Dorgan Solar Energy and Fuel Cell Laboratories
Univerisity of Miami


Technical papers will be presented on a wide range of topics, including:

Aerodynamics Algorithms and Applications
Algorithms and Validation
Automotive Applications
Blunt Body Flows
Capillary Flows
Combustion, Detonation, and Reacting Flows
Environmental Flows
Fuel Cells
Heat Transfer Problems
Jet Flows
Materials Processing Applications
Multiphase Flow and Multiphysics Problems
Optimization and Sensitivity Analysis
Physics of Turbulence and Transition
Flow in Porous Media
Power Plant and Turbomachinery Applications
Solid Rocket Motors
Supersonic and Hypersonic Flows
Turbulence Modeling

A preliminary program is available at


This year's short course will be on Computational Modelling of Fuel
Cells. The course will be held at UBC May 31 (all day) and June 1 (half
day). The course will cover the following topics:

Overview of operation and transport phenomena in PEMFCs and SOFCs
Modelling of flow, heat and mass transfer in porous electrodes
Catalyst and electrolyte modelling
Implementation in CFD

Course notes will be provided and two hands-on sessions will be held
using the SOFC simulation module in Fluent.

For more information, see


CFD 2003 will be held at the Coast Plaza Hotel and Suites in Vancouver,
BC, and hosted by the University of British Columbia Department of
Mechanical Engineering.


Registration for the conference is now underway. The early registration
deadline is May 1, although registrations will of course be accepted up
to the beginning of the conference. The registration form is available
online at More information about
payment options, including wire transfer payment is available at


Carl Ollivier-Gooch, CFD2003 Secretariat
Dept of Mechanical Engineering
University of British Columbia
2324 Main Mall
Vancouver, BC V6T 1Z4 Canada

Phone: (604) 822-1854
Fax: (604) 822-2403


From: C. J. Kenneth Tan <>
Date: Fri, 11 Apr 2003 17:32:26 -0400
Subject: Conference in Montreal on Computational Science and Its Applications

The 2003 International Conference on Computational Science and Its
Applications (ICCSA 2003) will be held at the Delta Centreville Hotel
in Montreal, Canada, from 18 May 2003 till 21 May 2003.

The Conference Program is now available on the Web at:

We have negotiated a very competitive rate at the Delta Centreville
Hotel (the Conference venue hotel). We would like to ask you to book
your hotel room immediately, before block of rooms allocated for ICCSA
2003 is taken up. The room block allocated to us will be closing
within the next few days.

The hotel booking form is available at:

Please book your hotel room with the hotel directly, immediately.

We look forward to meeting you in Montreal!

Thank you very much!

Marina Gavrilova and Kenneth Tan


From: Leonidas Xanthis <>
Date: Fri, 11 Apr 2003 22:58:36 +0100 (BST)
Subject: Symposium in Athens on Modelling of Smart Materials

September 25-27, 2003


Organised by

Ayech Benjeddou
Lab. for Engrg Mech. Syst & Materials
ISMCM-CESTI, Saint-Ouen, France

Dimitris A. Saravanos
Applied Mechanics & Materials Section
University of Patras, Greece

Leonidas S. Xanthis
Ctre for Techno-Maths & Sci. Comput. Lab.
University of Westminster, London

The purpose of the mini-symposium is to provide a forum for
presentation of ideas and recent developments in the evolving
area of smart or intelligent materials and structures; more
specifically on issues of pure, applied and computational mathematics,
analytical modelling, numerical simulation or engineering applications.
Contributions are welcome from such diverse areas as piezoelectric
materials, shape-memory materials, electro-rheological fluids,
fibre-optics, smart composites and so forth.

The organisation of the mini-symposium will follow the conference
schedule. Please note the deadlines for this mini-symposium have been
extended to May 12th, 2003. For further details and to register your
interest in participation, please contact Prof L.S. Xanthis (E-mail:, Cc.,


From: Michael Trosset <trosset@MATH.WM.EDU>
Date: Thu, 10 Apr 2003 15:24:26 -0400 (EDT)
Subject: Workshop in Tallahassee on Algorithms for Multidimensional Scaling

DIMACS Workshop: Algorithms for Multidimensional Scaling II
June 11-12, 2003
Doubletree Hotel in Tallahassee, Florida

J. Douglas Carroll (chairman), Rutgers University,
Phipps Arabie, Rutgers University,
Larry Hubert, University of Illinois,
Michael Trosset, The College of William & Mary,
Mike Brusco, Florida State University,
Mel Janowitz, DIMACS liaison,

Presented under the auspices of the Special Year on Data Analysis and

Immediately preceding the 2003 meeting of CSNA (Classification Society of
North America), hosted by Mike Brusco at the Doubletree Hotel in
Tallahassee, Florida (June 12-15, 2003) there will be a followup meeting
of a previous Workshop on Algorithms for Multidimensional Scaling (MDS)
held in August, 2001, at Rutgers University in New Brunswick, NJ. The
followup meeting will be held at the same site as the CSNA meeting, and is
sponsored by DIMACS (the Center for Discrete Mathematics and Theoretical
Computer Science) at Rutgers. The DIMACS meeting will begin at 1PM on
Wednesday, June 11, just before the CSNA meeting begins, and continue
during the day on Thursday, June 12, independent of the Thursday workshops
associated with CSNA, but prior to the opening reception for CSNA on
Thursday evening.

On Friday morning, Larry Hubert will give an invited talk on MDS. This
talk is jointly sponsored by DIMACS and CSNA, and all CSNA attendees are
welcome to attend. CSNA attendees who would also like to attend and/or
participate in the DIMACS Workshop on MDS Algorithms must notify the
workshop organizers in advance and pay a workshop registration fee of
$75. This fee will cover participation in the workshop, coffee breaks and

Further information about the CSNA meeting may be obtained from the CSNA
website There is a DIMACS website dedicated to
the Working Group on Algorithms for Multidimensional Scaling located at


From: Shaun Forth AMORG <>
Date: Fri, 11 Apr 2003 09:02:33 +0100
Subject: Workshop on Automatic Differentiation

Joint University of Hertfordshire/Cranfield University

Automatic Differentiation Workshop
Special Sessions on:
Aerospace Applications of AD & Adjoints
AD of C++

Thursday 5th & Friday 6th June 2003

to be held at
Shrivenham Campus
Cranfield University
Swindon SN6 8LA

Sponsored by the Engineering and Physical Sciences Research Council

Updated information can be found at:
and follow link to "Workshops on Automatic Differentiation"

This 2-day workshop is the latest in a series that provides a forum
for the presentation of theoretical developments in and applications
of Automatic Differentiation (AD) and adjoint methods.

For this particular workshop, as well as our usual open sessions,
we are holding 2 special sessions on "Aerospace Applications of AD &
Adjoints" and "AD of C++". We are particularly keen to receive
contributions from researchers active in these two areas.

The use of both forward sensitivity analysis and adjoint design
methodologies are currently receiving particular attention in the
Aerospace community. This special session of the workshop will focus
on present applications and future requirements for AD in this
demanding area.

Invited Speaker -

Larry Green, NASA Langley Research Center, USA (to be confirmed)

Contributions From -

David Standingford, BAE SYSTEMS ATC-Sowerby, UK -
"Making use of adjoint sensitivities in aerodynamic design",
Shaun Forth, Cranfield University, UK -
"Automatic Differentiation of an industrial,
unstructured-mesh CFD solver"
Presently, most large scale applications of AD have been made to
code written in Fortran. The lack of object-oriented
features such as polymorphism and inheritance in Fortran is only now
being addressed with the awaited Fortran 2000 standard. This has led
to the recent development of many large scale application codes in
C++. This special session is devoted to: the requirements for C++ AD
tools; the implementation of current C++ AD tools; and AD applications
using C++ AD tools.

Invited Speaker -

Dr Ole Stauning, FADBAD++ (to be confirmed)

Contributions from -

Jan Riehme, "Preaccumulation in the differentiation-enabled NAGWare
Fortran 95 compiler"

Uwe Naumann, "Towards ADIFORC -- AD In Fortran and C"

Those wishing to speak should contact the organiser Shaun Forth.

Registration for the workshop is free. Please contact the workshop
secretary Jo Nash.

Chairman: Bruce Christianson (

Organiser: Shaun Forth (

Secretary: Jo Nash (


From: Miguel Anjos <>
Date: Thu, 10 Apr 2003 18:04:18 +0100 (BST)
Subject: Research Position at University of Southampton

University of Southampton
Faculty of Mathematical Studies, Operational Research Group

Research Assistant / Research Fellow - Ref: 02H0659

Application of Semidefinite Programming to the Facility Layout Problem
We are looking for a Research Assistant / Research Fellow to work within
the Operational Research group on a project in the area of semidefinite
programming. The research aims to investigate the application of
semidefinite programming to solve facility layout problems more
efficiently, extending recent breakthroughs in these areas. A main
objective is to investigate the potential of semidefinite
programming-based algorithms for tackling facility layout problems, with a
particular focus on the context of automated placement in VLSI circuit design.

To be considered for this post, you must have a good first degree, and
ideally a postgraduate qualification, in Operational Research,
Mathematics, Computer Science, or a related discipline in Science or
Engineering. You should have expertise in the general area of
optimization, preferably including knowledge of interior-point algorithms
and linear programming, have strong computer programming skills, ideally
including knowledge of Matlab or C. You should have an interest or
experience in practical optimization, particularly in the application of
mathematical programming techniques. Knowledge of semidefinite programming
would be a welcome asset.

This appointment will be for up to 12 months. It is hoped that the
successful applicant will be able to commence the research from 15
September 2003, and definitely no later than 1 October 2003.

Salary will be in the range =A318,265 to =A327,339 per annum on the Research
Grade 1B/1A scale.

Informal enquiries are welcome and should be addressed to Dr Miguel F.
Anjos, Faculty of Mathematical Studies, University of Southampton,
Southampton. SO17 1BJ, UK. Tel: +44 (0) 23 8059 5136, Fax: +44 (0) 23
8059 5147.

Further particulars are available from the Personnel Department.
Applicants should send a detailed CV and arrange for two letters of
reference to be sent directly to the Personnel Department (H), University
of Southampton, Highfield, Southampton SO17 1BJ, Tel: 023 8059 2750,
e-mail: or minicom 023 8059 5595 to arrive no later
than 1 May 2003. Please quote reference number: 02H0659.


From: Marcus Grote <>
Date: Fri, 11 Apr 2003 15:37:40 +0200 (CEST)
Subject: Faculty Position at the University of Basel

Assistant Professor of Applied and Computational Mathematics

The Department of Mathematics at the University of Basel invites
applications for an assistant professorship in applied and
computational mathematics, starting October 1, 2003. The appointment
is for three years and the annual salary 118,000 Swiss Francs.
Candidates must hold a Ph.D. degree in mathematics or applied
mathematics. Some postdoctoral experience is preferred but not required.

The appointment is part of the initiative of the University of Basel
to develop a new inter-departmental program in Computational Sciences,
and complements the recent appointment for the chair of numerical
analysis and computational mathematics (Prof. M. Grote). Candidates
must have a strong commitment to excellence in teaching and research.

Applicants should provide a curriculum vitae, a list of publications,
copies of three important papers, a statement of research interests,
and reports on past teaching experience, together with the names and
addresses of three references. As the University of Basel would like to
increase its female staff, women are strongly encouraged to apply.
Applications should be sent before May 23, 2003, to:

Prof. Dr. Marcus Grote
Department of Mathematics
University of Basel
Rheinsprung 21
CH-4051 Basel


From: Chandrika Kamath <>
Date: Sat, 12 Apr 2003 22:17:48 -0700
Subject: Postdoctoral Position at Lawrence Livermore National Laboratory

The Sapphire data mining project in the Center for Applied
Scientific Computing at the Lawrence Livermore National
Laboratory is looking for post-doctoral candidates in data
mining. The research focus will include topics in
dimension reduction, feature selection, pattern recognition,
and information retrieval, as well as the application of these
techniques to problems in various scientific domains.

US citizenship is required.

More details on the position are at
position #000834

Information on the Sapphire project is available at

Chandrika Kamath (Sapphire project lead)


From: Hans Schneider <>
Date: Thu, 10 Apr 2003 17:27:31 -0500 (CDT)
Subject: Contents, Linear Algebra and its Applications

Linear Algebra and its Applications
Volume 365, Pages 1-467 (15 May 2003)

Special Issue on Linear Algebra Methods in Representation Theory
Edited by D. Happel, C.M. Ringel and J. Drozd


Linear Algebra Methods in Representation Theory, Pages 1-2

Another algorithm for nonnegative matrices, Pages 3-12
Manfred J. Bauch

Minimal singularities in orbit closures of matrix pencils, Pages 13-24
Jens Bender and Klaus Bongartz

Symmetric quiver settings with a regular ring of invariants, Pages 25-43
Raf Bocklandt

Linear operators on S-graded vector spaces, Pages 45-90
Vitalij M. Bondarenko

On the kernel of an irreducible map, Pages 91-97
Sheila Brenner

Irreducible maps and bilinear forms, Pages 99-105
Sheila Brenner, M. C. R. Butler and Alastair D. King

On positive roots of pg-critical algebras, Pages 107-114
Thomas Brustle

Estimate of the number of one-parameter families of modules over a tame
algebra, Pages 115-133
Thomas Brustle and Vladimir V. Sergeichuk

Periodic Coxeter matrices, Pages 135-142
Jose A. de la Pena

On spectral radii of Coxeter transformations, Pages 143-153
Vlastimil Dlab and Piroska Lakatos

On the dimension of faithful modules over finite dimensional basic algebras,
Pages 155-157
M. Domokos

Tame biextensions of derived tame hereditary algebras, Pages 159-167
Peter Draxler

Hochschild cohomology of incidence algebras as one-point extensions,
Pages 169-181
Maria Andrea Gatica and Maria Julia Redondo

Monoidal structure of the category of u+q-modules, Pages 183-199
Elisabet Gunnlaugsdottir

Regular points in system spaces, Pages 201-213
Yang Han and Mulan Liu

Quivers, cones and polytopes, Pages 215-237
Lutz Hille

Variation on a theme of Richardson, Pages 239-246
Lutz Hille and Gerhard Rohrle

Algebraic computations in derived categories, Pages 247-266
Amrey Krause

A short proof for Auslander's defect formula, Pages 267-270
Henning Krause

Rings of invariants of 2 x 2 matrices in positive characteristic, Pages 271-278
S. G. Kuz'min and A. N. Zubkov

Additive functions on quivers, Pages 279-289
Helmut Lenzing and Liane Hasenberg

A note on applications of the 'Vector Enumerator' algorithm, Pages 291-300
Jurgen Muller

=From elementary calculations to Hall polynomials, Pages 301-309
R. Norenberg

Curves arising from Kronecker modules, Pages 311-348
F. Okoh and F. A. Zorzitto

Strongly nilpotent matrices and Gelfand-Zetlin modules, Pages 349-367
Serge Ovsienko

Cellular algebras and Cartan matrices, Pages 369-388
Changchang Xi and Dajing Xiang

Tame equipped posets, Pages 389-465
Alexander Zavadskij

Author Index, Page 467

Lists of Editors, Pages ii-iii


From: S. Friedla <>
Date: Fri, 11 Apr 2003 11:27:01 -0400
Subject: Contents: Numerical Methods for Partial Differential Equations

Numerical Methods for Partial Differential Equations
Volume 19 - Number 4, 2003

Xiaohai Liao, Ricardo H. Nochetto
Local a posteriori error estimates and adaptive control of pollution
pp. 421-442

C. Daveau, M. Menad
Mixed FEM and BEM coupling for the three-dimensional magnetostatic problem
pp. 443-462

So-Hsiang Chou, Do Y. Kwak, Qian Li
Lp error estimates and superconvergence for covolume or finite volume
element methods
pp. 463-486

Alessandro Veneziani
Block factorized preconditioners for high-order accurate in time
approximation of the Navier-Stokes equations
pp. 487-510

Sang Dong Kim, Yong Hun Lee
Error estimate and regularity for the compressible Navier-Stokes equations
by Newton's method
pp. 511-524

Hongsen Chen, et al.
Numerical study of the HP version of mixed discontinuous finite element
methods for reaction-diffusion problems: The 1D case
pp. 525-553


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