NA Digest Sunday, April 3, 2005 Volume 05 : Issue 14

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

Submissions for NA Digest:

Mail to

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


From: Helge Holden <>
Date: Tue, 29 Mar 2005 08:19:58 +0200
Subject: Peter Lax to Receive the 2005 Abel Prize

Peter D. Lax to receive the 2005 Abel Prize

The Norwegian Academy of Science and Letters has decided to award the Abel
Prize for 2005 to Peter D. Lax, Courant Institute of Mathematical Sciences,
New York University. Lax receives the Abel Prize "for his groundbreaking
contributions to the theory and application of partial differential equations
and to the computation of their solutions" to quote the Abel Committee.
See the 2005 Abel Prize announcement at


From: Murray Rudman <>
Date: Tue, 29 Mar 2005 14:04:09 +1000
Subject: Help with Divergence-free Interpolation Requested

Can anyone assist with freeware and/or algorithms for taking a
discretely divergence-free velocity field, and interpolating this to a
continuously divergence-free velocity field. The problem arises when
taking a 2-D velocity field from a finite-volume method and using it to
track fluid particles to determine Poincare sections. It would seem
that the interpolation schemes I've tried (BVIP, srfpack) are not
divergence-free, and the particle paths spiral onto attractors that
aren't physical.

All pointers gratefully received.

Murray Rudman


From: Evgenii Rudnyi <>
Date: Tue, 29 Mar 2005 10:10:31 +0200
Subject: Experimental Datasets from Chemical Thermodynamics


I have been working for quite awhile with the treatment of experimental
results in chemical thermodynamics. I have tried to organize my
archives and make them available for others:

There are several experimental datasets in computer readable format and
I hope that they can be used as useful benchmarks for data fitting and
nonlinear optimization. Experimental values have been collected from
original research papers describing experimental results. All case
studies are reasonably well documented in my papers.

The problem is essentially usual data fitting, however chemical
thermodynamics adds several interesting features:

a) A dataset comprises several heterogeneous experiments.

b) The difference between different experiments is greater than the
reproducibility error because, as one could expect, there are
inevitable systematic errors.

c) Sometimes, computation of a residual cannot be done analytically but
instead requires a numerical solution of another numerical problem by

The link above contains a short description and links to five datasets:
1) Vaporization of KCl, 2) The Ba-Cu System, 3) The Cu-Y System, 4)
Thermodynamics of Calcium Aluminates, 5) Thermodynamics of YBa2Cu3O6+z.

Best wishes,

Evgenii Rudnyi
IMTEK: Institute of Microsystem Technology
Freiburg University


From: Barb Autterson <>
Date: Mon, 28 Mar 2005 12:04:14 -0500
Subject: Parallel Programming Contest

Who has the best parallel programmers???

Announcing the First HPCS Parallel Programming Contest

Graduate and undergraduate students are the future of research in the
computational sciences. In these exciting times for HPC, it is
especially necessary to mentor and encourage the next generation of
HPC-enabled research scientists.

The First HPCS Programming Contest provides graduate and undergraduate
students in the computational sciences with the opportunity to
demonstrate their problem-solving, parallel programming and teamwork
skills in a competitive but supportive environment. The contest
provides a platform for HPCS, C3, academia and industry to encourage
students and focus public attention on the next generation of high
performance computation professionals.

The contest will be limited to 10 teams. Each team is to be composed of
two students (either graduate or undergraduate). The two students will
pair program a set of four HPC problems. The time limit is 4 hours.
The results will be evaluated for correctness, efficiency, and elegance.
The four problems will span the range of problems typically encountered
in an HPC environment.

The programming environment will be the following:
- an Alpha cluster of 108 CPUs running RH Linux
- a Quadrics interconnect
- LSF scheduler
- mpich (version 1.1)
- gcc compiler

The contest will be held during HPCS 2005 at the University of Guelph,
Guelph, Ontario. It will take place on Monday, May 16 from 1PM to 5PM.
Conference registration for the participants is encouraged but not

Prizes for the winning teams will be presented at the HPCS 2005 banquet
on Tuesday, May 17.

Registration is open until May 1, 2005 or until the team limit has been

To register online for the contest, go to the main HPCS 2005 website,
and provide the following information:
* name, affiliation (department, university), programme
(undergraduate, graduate) and email address for each team member
* name, affiliation (department, university) and email for a
faculty member who will "sponsor" the team. Note: the faculty member
only has to vouch for the accuracy of the supplied information about the
team members, they do not have to coach, financially sponsor or attend
the conference with the team but all those activities are encouraged!
* if any of the team members has a SHARCNET account, then please
supply that account information, i.e. login name

Let the parallel programming games begin!

For more information please email Deborah Stacey at


From: Tony Chan <>
Date: Mon, 28 Mar 2005 15:44:05 -0800
Subject: Mini-symposia at World Congress on Computational Mechanics

Call for Mini-symposium Proposal
Seventh World Congress on Computational Mechanics

W. K. Liu, T. Belytschko, B. Moran, L. Keer, H. Espinosa (Northwestern
J. S. Chen, J. W. Ju, E. Taciroglu, S. Osher, T. Chan, N. Ghoniem
(University of California, Los Angeles)

Dear Colleagues:

On behalf of WCCM-VII Organizing Committee, I am writing to invite you to
submit Mini-symposium proposals for 2006 World Congress on Computational
Mechanics to be held in Century Plaza Hotel & Spa, Los Angeles, California,
USA, July 16-22, 2006.

All mini-symposium proposals must be submitted via the WCCM-VII website at

There should be at least two co-organizers for each mini-symposium; it is
desirable that they represent more than one institution. The participation
of young researchers is encouraged.

Mini-symposium proposals will be reviewed on a continuous basis until the
proposal deadline, May 15, 2005. The mini-symposium abstract submitted with
each proposal should be written in a style that is appropriate for public
posting and attractive to potential participants.

We appreciate very much your interest in participating in WCCM-VII and look
forward to working with you for a successful congress.


From: Deok-Soo Kim <>
Date: Tue, 29 Mar 2005 12:19:23 +0000 (UTC)
Subject: Symposium in Seoul on Voronoi Diagrams in Science and Engineering

Call for Papers
The 2nd International Symposium
Voronoi Diagrams in Science and Engineering

October 10 - 13, 2005
Hanyang University, Seoul, Korea

Invited Speakers
Aurenhammer, Franz (Technische Universitaet Graz, Austria)
Medvedev, Nikolai N. (Institute of Chemical Kinetics and Combustion,
Russian Academy of Science)
(A biologist is being contacted for the invitation.)

Expected topics include, but not restricted to,

Theoretical aspects of Voronoi/Delaunay diagrams
Computational and implementational aspects of Voronoi/Delaunay diagrams
Generalizaion of the Voronoi/Delaunay diagrams
Voronoi Arts
Applications of the Voronoi/Delaunay diagrams to
Material science
Location science
Geographic information systems
Mesh generation
Geometric algorithms
Solid modeling
Computer graphics
Pattern analysis and recognition
Space analysis
Motion analysis and planning
Collision detection and avoidance
Operations research
and others


From: Manfred Trummer <>
Date: Sat, 02 Apr 2005 10:45:49 -0800
Subject: Conference in Vancourver in Honour of Bob Russell

International Conference in Vancouver, British Columbia
Wednesday, August 3, 2005 to Saturday, August 6, 2005.
Adaptivity and Beyond:
Computational Methods for Solving Differential Equations

In honour of Robert D. Russell and in celebration of his 30th (base 20)

The theme of the conference is Adaptive computational methods for
differential equations. Adaptation has now become fundamental to the
numerically solving differential equations (DEs) arising from science
and engineering. It has been amply demonstrated that significant
improvements in accuracy and efficiency can be gained by adapting the
computation to the physical solution or some other important quantities
of the DEs in consideration. An important area of adaptive computation
has also proven to be important for many other computational problems
related to DEs, including approximation of invariant sets such as
invariant tori, inertial manifolds, or connecting orbits that describe
the long time behavior of the solution.

During the last three decades, significant progress has been made in
adaptive computation of DEs. Adaptive computation is now an established
area of intensive research activities which finds its motivation and
application in many areas of science and engineering. It is also a
rapidly changing area and one in need of development of more robust and
reliable adaptation strategies and better understanding of the basic
principles behind them.

Bob Russell has made many groundbreaking contributions to the field, and
it is a special privilege to dedicate this conference to Dr Russell in
celebration of his 60th birthday.

The meeting will be held at the PanPacific Hotel
( in Vancouver, British Columbia. The
conference is organised and sponsored by the Pacific Institute for the
Mathematical Sciences ( <>) with
additional support from Simon Fraser University (
<>), the Department of Mathematics at SFU
( <>), the Centre for Scientific
Computing at SFU ( <>) and NSERC
Discovery grants.

The conference web site is at

If you are interested in joining us for this festive occasion in
Vancouver, please subscribe to the Conference Mailing List by sending an
e-mail to <>

with a subject of

subscribe pims-adaptive-conf

We hope to see you in Vancouver this summer!

Organising Committee

Manfred Trummer, SFU
Steven Ruuth, SFU
John Stockie, SFU
Erik Van Vleck, University of Kansas
Weizhang Huang, University of Kansas
Luca Dieci, Georgia Tech


From: Olof Runborg <>
Date: Sun, 03 Apr 2005 17:43:11 +0200
Subject: Conference in Stockholm in Honor of Bjorn Engquist

Professor Bjorn Engquist turns sixty and to celebrate the
occasion a conference is organized at KTH, Stockholm,
Sweden, on June 16-17 2005.

Invited speakers:

* Jean-David Benamou, INRIA Rocquencourt
* Yann Brenier, Université de Nice-Sophia-Antipolis
* Lennart Carleson, KTH
* Roland Glowinski, University of Houston
* Bertil Gustafsson, Uppsala University
* Laurence Halpern, Université Paris 13
* Rolf Jeltsch, ETH Zürich
* Claes Johnson, Chalmers University of Technology
* Heinz-Otto Kreiss, KTH
* Pierre-Louis Lions, Université Paris-Dauphine
* Per Lötstedt, Uppsala University
* Jean-Claude Nédélec, École Polytechnique, Paris
* Felix Otto, Bonn Universität
* Benoît Perthame, École Normale Supérieure, Paris
* Axel Ruhe, KTH
* Denis Serre, École Normale Supérieure, Lyon
* Ulf Thibblin, AerotechTelub
* Vidar Thomée, Chalmers University of Technology

More information is available on the web page


From: Matthew Richardson <>
Date: Wed, 30 Mar 2005 19:21:04 -0800
Subject: Conference at Banff Centre on Knowledge Capture

Third International Conference on Knowledge Capture
October 2-5, 2005, The Banff Centre, Banff, Canada

Submission deadline: May 6, 2005
in cooperation with the AAAI

Topics of interest include, but are not limited to:
* Knowledge acquisition tools
* Advice taking systems
* Authoring tools
* Learning apprentices
* Knowledge engineering and modeling methodologies
* Knowledge extraction systems
* Knowledge management environments
* Mixed-initiative decision-support tools
* Knowledge-based markup techniques
* Acquisition of problem-solving knowledge
* Knowledge capture for the Semantic Web

About the venue
The Banff Centre:
Banff National Park:


Program Co-Chairs: Peter Clark, Boeing
Guus Schreiber, Free University Amsterdam
Treasurer: Jim Blythe, USC/ISI
Local Arrangements Chair: Rob Kremer, University of Calgary
Workshop and Tutorial Chair: Marie desJardins, Univ of Maryland, Baltimore
Publicity Chair: Matthew Richardson, Microsoft
Sponsorship Co-Chairs: Yolanda Gil, USC/ISI
David Leake, Indiana University


From: Marina Meila <>
Date: Thu, 31 Mar 2005 17:46:57 -0800 (PST)
Subject: Conference in Vancouver on Neural Information Processing Systems

CALL FOR PAPERS: Neural Information Processing Systems - NIPS 2005
December 5-8 Vancouver, BC

Deadline for Paper Submissions: June 3, 2005

Submissions are solicited for the Nineteenth Annual meeting of an inter-
disciplinary Conference (December 6-8) which brings together researchers
interested in all aspects of neural and statistical processing and computation.
The Conference will include invited talks as well as oral and poster
presentations of refereed papers. It is single track and highly selective.
Preceeding the main Conference will be one day of Tutorials (December 5),
and following it will be two days of Workshops at Whistler/Blackcomb ski
resort (December 9-10).

Papers are solicited in all areas of neural information processing,
including (but not limited to) the following:

* Algorithms and Architectures
* Applications
* Brain Imaging
* Cognitive Science and Artificial Intelligence
* Control and Reinforcement Learning
* Emerging Technologies
* Learning Theory
* Neuroscience
* Speech and Signal Processing
* Visual Processing
* Demonstrations

For full information please refer to the NIPS website


From: Rajkumar Buyya <>
Date: Fri, 01 Apr 2005 21:08:16 +1000
Subject: Conference in Melbourne on e-Science and Grid Technologies

e-Science 2005 Conference: Call for Participation
International Conference on e-Science and Grid Technologies
Dec. 5-8, 2005, Melbourne, Australia

Sponsored/Organised By [*-pending approval]:
IEEE Computer Society's Technical Committee on Scalable Computing*
Society for Industrial and Applied Mathematics*
University of Melbourne, Australia
Queen's University, UK


The e-Science 2005 conference, sponsored by the IEEE Computer Society and
Society for Industrial and Applied Mathematics (approval pending), is
designed to bring together leading international and interdisciplinary
research communities, developers, and users of e-Science applications and
enabling IT technologies. The conference serves as a forum to present the
results of the latest research and product/tool developments, and
highlight related activities from around the world.

The following topics concerning e-Science and Grid Computing are of
interest, but not limited to:

* Enabling Technologies: Internet and Web Services
* Collaborative Science Models and Techniques
* Problem Solving Environments
* Application Development Environments
* Programming Paradigms and Models
* Resource Management and Scheduling
* Grid Economy and Business Models
* Autonomic and Self-Organising Grid Networks
* Virtual Instruments and Access Management
* Sensor Networks and e-Science
* Security Challenges
* Software and Social Engineering
* e-Science & Grid applications in Physics, Biology, Astronomy,
Chemistry, Finance, and Engineering.


Honorary Chair:
Ian Foster, Argonne National Lab and Univ. of Chicago, USA

General Chairs:
Raj Buyya, GRIDS Lab, University of Melbourne, Australia
Ron Perrott, Belfast e-Science Centre, Queen?s University, UK

Program Chair:
Heinz Stockinger, University of Vienna, Austria


From: Jerzy Wasniewski <>
Date: Thu, 31 Mar 2005 11:07:09 +0200 (METDST)
Subject: Workshop in Poland on HPC Linear Algebra Libraries

Workshop on
HPC Linear Algebra Libraries for Computers
with Multilevel Memories

to be held in conjunction with the

PPAM05 Conference on Parallel Processing
and Applied Mathematics

September 11-14, 2005, Poznan, Poland

There are still a few places for contributed, either 20 or 30 minutes
talks on this workshop. Extended abstracts no more than two pages should
be sent before April 15, 2005.
The extended abstracts and the papers of this Workshop should be sent to
Jerzy Wasniewski <>.

For more information related to PPAM05 Conference please visit the PPAM2005

The workshop organizer:

Jerzy Wasniewski
Technical University of Denmark
Informatics & Mathematical Modeling
DK-2800 Lyngby, Denmark


From: Dongming Wang <>
Date: Fri, 1 Apr 2005 17:29:46 +0200
Subject: Workshop in China Symbolic-Numeric Computation

International Workshop on Symbolic-Numeric Computation
Xi'an, China, July 19-21, 2005

A satellite workshop of ISSAC 2005


* Submission deadline: April 10, 2005

* Invited speakers: Robert M. Corless Matu-Tarow Noda
Victor Y. Pan Hans J. Stetter


From: Ronnie Sircar <sircar@Princeton.EDU>
Date: Sun, 27 Mar 2005 23:28:02 -0500
Subject: Workshop in Montreal on Financial Mathematics

Workshop on Stochastic Modeling in Financial Mathematics, Montreal,
Canada, June 1-5, 2005.
For details and speaker information, please visit:


From: C. Roos <>
Date: Fri, 01 Apr 2005 11:11:20 +0200
Subject: Faculty Position at TU Delft, Netherlands

Because of the expected retirement of the current professor, TU Delft has
opened a vacancy for a full professorship Algorithms in the Computer Science
Department and is looking for candidates. More information can be found on
the web links: (partly in Dutch)


From: Max Gunzburger <>
Date: Mon, 28 Mar 2005 14:35:15 -0500
Subject: Faculty Position at Florida State University

Florida State University
School of Computational Science

The School of Computational Science at Florida State University is
seeking to fill a position at the Assistant Professor level in the area
of computational solution of partial differential equations. In
particular, it seeks candidates with expertise in the analysis,
numerical analysis, and algorithmic design and development for
stochastic partial differential equations. A Ph.D. in mathematics or a
related discipline and postdoctoral experience are required for the
position, as is a demonstrable excellence in research and a genuine
commitment to teaching. Tenure-earning status would be in the
Department of Mathematics or another appropriate department.

A CV and research and teaching statements should be sent electronically
to Max Gunzburger at At least 3 letters of
reference should be sent to Max Gunzburger, DSL400, School of
Computational Science, Florida State University, Tallahassee FL
32309-4120. Applications from underrepresented groups are especially
encouraged. Applications will be reviewed as they are received and
until the position is filled.


From: Chetan Gadgil <>
Date: Thu, 31 Mar 2005 10:23:18 -0500
Subject: Summer Student Opportunities at GlaxoSmithKline

2005 Summer Student Opportunities at GlaxoSmithKline
Scientific Computing and Mathematical Modeling

The Scientific Computing and Mathematical Modeling group at
GlaxoSmithKline seeks talented advanced undergraduate and graduate
students in applied mathematics, mathematical biology, computational
systems biology, and computer science for Summer 2005.

The Scientific Computing and Mathematical Modeling (SCMM) group applies
mathematical and computational techniques to a variety of challenging
problems in pharmaceutical research. Our group works on mathematical
models related to the biology of disease states and drug interventions,
the chemistry and physics of drug formulations and delivery devices, and
the structure and network characteristics of large biochemical pathways in
cells. In addition, we develop sophisticated computational tools that are
used to build and calibrate mathematical models. This involves model
formulation, efficient numerical solutions, processing large quantities of
experimental data, and visualizing the results of model-generated
computational experiments.

Possible projects in computer science include implementing optimization
algorithms, developing tools for parallel computations, and developing
graphical representations of pathways and pathway properties. Projects for
students with an applied mathematics background include development of
network analysis tools, analysis of metabolic pathway simulation
algorithms, development of optimization algorithms, and stability analysis
of dynamical systems. Other projects involving mathematical modeling and
computational biology may involve bone remodeling, blood coagulation and
receptor mediated signal transduction processes involved in cancer and

We seek mature, motivated self-starters who can successfully integrate
sophisticated mathematics and computer software with real-world biological
problems. All students are expected to have graduate-level expertise in
the area directly related to their summer project. This typically requires
advanced training and experience in at least one of the following areas:
mathematical biology, scientific computing, mathematical modeling,
numerical analysis and optimization, differential equations and
computational systems biology. All students must be proficient in at least
one programming language, preferably Matlab. Students with a computer
science background are expected to be familiar with parallel programming
techniques. Students with an applied mathematics background are expected
to have graduate-level expertise in areas such as optimization and
numerical analysis, graph theory, and stability analysis. Students
interested in computational biology projects are expected to have prior
experience in developing mathematical models of biological processes.
While the ability to work autonomously is desired, the student will have
the opportunity to interact with a larger team composed of other
computational scientists and R&D researchers under the guidance of an SCMM
mentor. The internship positions may be located at our facilities in the
Philadelphia area, Research Triangle Park, NC, or near London in the UK.

Applicants can apply through our website:, Job Code Requisition Number:
16032 . Developing talent through equality of opportunity, M/F/D/V.


From: Iain Duff <>
Date: Tue, 29 Mar 2005 11:26:11 +0100 (BST)
Subject: Contents, IMA Journal of Numerical Analysis


Contents of Volume 25, Number 2

R. Andreani, E. G. Birgin, J. M. Martinez and J. Yuan
Spectral projected gradient and variable metric methods for optimization
with linear inequalities.
pp 221-252

J. Wu and Y. Lu
A superconvergence result for the second order Newton-Cotes formula for
certain finite-part integrals.
pp 253-263

Z. Li, M. R. Osborne and T. Prvan
Parameter estimation of ordinary differential equations.
pp 264-285

P. F. Tupper
A test problem for molecular dynamics integrators.
pp 286-309

T. Apel and C. Pester
Clement-type interpolation on spherical domains - interpolation error
estimates and application to a posteriori error estimation.
pp 310-336

P. Pozzi
The discrete Douglas problem: convergence results.
pp 337-378

I. G. Graham, W. Hackbusch and S. A. Sauter
Finite elements on degenerate meshes: inverse-type inequalities and
pp 379-407

G. Kunert
A posteriori $H^1$ error estimation for a singularly perturbed reaction
diffusion problem on isotropic meshes.
pp 408-428


From: CMFT <>
Date: Tue, 29 Mar 2005 23:07:02 +0200 (CEST)
Subject: Contents Compututational Methods and Function Theory


(Abstracts online available at

The Apollonian Metric: Quasi-Isotropy and Seittenranta's Metric, Pages 249-273
P. A. H&auml;st&ouml;

On a Problem of A. Eremenko, Pages 275-282
I. V. Ostrovskii

Behaviour of Kernel Functions under Homotopic Variations of Planar Domains, Pages 283-298
E. Schippers

Unicity Theorems for Meromorphic Functions and their Derivatives, Pages 299-314
J. Chang, M. Fang, D. Yang

Badly Approximable Unimodular Functions in Weighted L^p Spaces, Pages 315-326
A. B. Aleksandrov

Extending a Theorem of Bergweiler and Langley Concerning Non-Vanishing Derivatives, Pages 327-339
E. F. Clifford

On Maximum Modulus Points and Zero Set for an Entire Function of either Zero or Infinite Order, Pages 341-354
A. E. &Uuml;reyen

Description of Inverse Polynomial Images which Consist of Two Jordan Arcs with the Help of Jacobi's Elliptic Functions, Pages 355-390
F. Peherstorfer, K. Schiefermayr

A Carleman-Nevanlinna Theorem and Summation of the Riemann Zeta-Function Logarithm, Pages 391-403
A. A. Kondratyuk

On a Problem of MacLane Concerning Arc Tracts, Pages 405-418
K. F. Barth, P. J. Rippon

Quadrilaterals and John Disks, Pages 419-434
O. J. Broch

Local Decomposition of Planar Harmonic Mappings, Pages 435-446
A. Lyzzaik, D. Bshouty

On an Asymptotic Equality Between the Minimum and the Maximum of &delta;-Subharmonic Functions of Zero Genus, Pages 447-460
I. Chyzhykov, O. Skaskiv

Notes on Certain Star-Shift Invariant Subspaces, Pages 461-474
J. R. Akeroyd, K. Karber

Extremal Point Methods for Robin Capacity, Pages 475-496
M. Stiemer


End of NA Digest