NA Digest Saturday, December 20, 2003 Volume 03 : Issue 51

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

Submissions for NA Digest:

Mail to

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


From: Iain Duff <>
Date: Fri, 19 Dec 2003 10:25:08 GMT
Subject: SVG Meeting

Fellow nadigesters ...

I have been asked to say a few words at the dinner to commemorate the
60th birthdays of Mike Saunders, Jim Varah, and Alan George in Palo Alto
this January. Although I know these fine gentlemen fairly well, I would
very much welcome any material, comments, anecdotes that you think might
be useful to me ... due reference will be given for particularly
memorable titbits.

Merry Christmas and Happy New Year

Iain Duff


From: Trevor Misfeldt <>
Date: Mon, 15 Dec 2003 10:19:28 -0800
Subject: New C# Statistical Library

CenterSpace Software is pleased to announce the release of NMath Stats 1.0


NMath Stats contains a data table class with functions for computing
descriptive statistics, such as mean, variance, standard deviation,
percentile, median, quartiles, geometric mean, harmonic mean, RMS,
kurtosis, skewness, and many more; PDF, CDF, inverse CDF, and random
variable moments for a variety of probability distributions, including
normal (Gaussian), Poisson, chi-square, gamma, beta, Student's t, F,
binomial, and negative binomial; Combinatorial functions, such as
factorial, log factorial, binomial coefficient, and log binomial; Multiple
linear regression; Basic hypopthesis tests, such as z-test, t-test, and
F-test, with calculation of p-values, critical values, and confidence
intervals; Analysis of variance (ANOVA).

If you are interested in evaluating NMath Stats, we offer a free
fully-functional trial version, distributed in binary form only for a
14-day evaluation period. Purchased product includes source code, user
documentation, help files and examples.

Trevor Misfeldt
CEO, CenterSpace Software


From: Vincent Heuveline <>
Date: Wed, 17 Dec 2003 16:42:54 +0100 (CET)
Subject: Free Visualization Software - HiVision

This is to announce that a new, open source release (GNU licence) of the
visualization software HiVision can be downloaded from

HiVision is a visualization platform including advanced visualization
techniques for the analysis and exploration of data supplied
by numerical simulation. Although primarily developed for
visualization in the area of computational fluid dynamics as part of the
HiFlow Project (, the HiVision framework is discipline
independent and may be advantageously used in various areas such as
structural mechanics and reactive flow simulation. HiVision has been
developed using the powerful C++ Visualization Toolkit library (VTK)
and for the graphical user interface, the Qt library. The main features
supported in release 2.0 are the following:

- 2D/3D unstructured grids (quadrangle, hexahedron, triangle, tetraeder),
- Scalar data: texture mapping, transparency, colorbar,
cutplanes, isolines, isosurfaces
- Vector data: interactive creation, streamlines, pathlines, glyphs,
- Stereo rendering,
- Animation (based on MPEG),
- Mouse based interaction.

Your HiVision Team: S. Boenisch, V. Heuveline


From: Bob Stern <>
Date: Fri, 19 Dec 2003 11:33:26 -0500
Subject: New Book on Partial Differential Equations Software

New from CRC Press:
Ordinary and Partial Differential Equation Routines in
C, C++, Fortran, Java, Maple and MATLAB by H. J. Lee and
W. E. Schiesser

This book provides a set of library ODE/PDE integration
routines written in six widely accepted and used languages.
The ODE integrators are based on embedded Runge Kutta (RK)
pairs, and include the RK pairs in the ode23 and ode45 Matlab

The discussion of ODE integration includes truncation error
monitoring and control, h and p refinement, stability and
stiffness, and explicit and implicit algorithms. Stiff
systems are discussed and illustrated through an ODE

The extension to PDEs is by the method of lines (MOL) with
finite difference approximation of the spatial (boundary
value) derivatives. Example PDE applications include an
analysis of the collapse of the World Trade Center towers.

The book should be of interest to applied mathematicians,
scientists and engineers interested in computing solutions
to ODE/PDE systems. The source code for all of the library
routines is available from the authors to facilitate use,
modification and extension to new problems; see

for information about the source code.

Ordering information for the book is available from:

CRC Press
2000 NW Corporate Boulevard
Boca Raton, Florida 33431, USA


From: Kai Diethelm <>
Date: Mon, 15 Dec 2003 16:29:05 +0100
Subject: Conference in Bordeaux on Fractional Differentiation

The First IFAC workshop on
Fractional differentiation and its applications (FDA 04)
will be held on July 19th and 20th, 2004, at the ENSEIRB Engineering School,
Bordeaux, France.

In the last two decades, fractional differentiation (fractional calculus) has
played a very important role in various fields such as mechanics, control
theory, robotic and image and signal processing. In this last field, some
important considerations such as modeling, curve fitting, filtering, pattern
recognition, edge detection, systems identification, stability,
controllability, observability and robustness are now linked to long-range
dependence phenomena.

Fractional differentiation and its applications in the modeling of mechanical
systems, in automatic control and in signal and image processing is thus now
an important issue for the international scientific community.

This workshop thus aims at gathering the experts in the field of fractional
differentiation and its applications, and all interested researchers, coming
from universities and industries, in order to make the point on the state of
the art and on current research lines in theory, methodology, applications and
tools, including numerical algorithms.

Full information about the workshop is available at

Important dates:
January 15, 2004: Submission of manuscripts
March 15, 2004: Notification of acceptance
April 15, 2004: Final manuscripts and registration
July 19-20, 2004: Workshop


From: Hoai An Le Thi <>
Date: Tue, 16 Dec 2003 23:24:44 +0100
Subject: Conference in France on Information Systems and Management Sciences

Fifth International Conference on Computer Sciences:


July 1-3, 2004, Metz, France


The conference will cover several fields of Management Sciences and Information
Systems: Computer Sciences, Information Technology, Mathematical Programming,
Optimization and Operations Research and related areas. It should allow
researchers and practitioners to discuss recent developments in models and
solutions methods for decision making in Engineering and Information Systems.
Contributions to the solution of real-life problems are particularly

Papers may fit in one of the following main topic areas, and that in
unlisted but related sub-topics are also welcome:

Area 1: Optimization and Decision Making
Area 2: Data Mining Theory, Systems and Applications
Area 3: Computer Vision and Image Processing

Special sessions, dedicated to ''Optimization in Industry'', ''Genomics,
Bioinformatics'' and ''Clustering Analysis'' and commercial presentations are
envisaged. Companies interested in presenting their products/sofwares/
methodologies or researchers interested in holding a special section are
invited to contact the conference secretariat. Further information on the
Conference can be found in the website of the Conference

Le Thi Hoai An, LITA - UFR MIM, Metz University, France


Hans-Hermann Bock, RWTH Aachen, Germany - Data mining
Ali Mohammad-Djafari, CNRS-Supelec, France - Image Processing
Radu Horaud INRIA, Rhone-Alpes, France - Computer vision
Patrice Marcotte, University of Montreal, Canada - Transportation and Logistic
Panos Pardalos, University of Florida, USA - Global Optimization and its
Jean Loup Risler, CNRS-University of Evry, France - Genomics and Bioinformatics
Yinyu Ye, Stanford University, USA - Management Sciences and Engineering
Henry Wolkowicz, University of Waterloo, Canada - SDP and its applications


Alexander Bockmayr, University of Nancy, France
Hans-Hermann Bock, RWTH Aachen, Germany
Ali Mohammad-Djafari, CNRS-Supelec, France
Edwin Diday, University of Paris Dauphine, France
G. Govaert, University of Compie`ne, France
Radu Horaud, INRIA Rhone-Alpes, France
Reiner Horst, University of Trier, Germany
Dieter Krash, Metz University, France
Le Thi Hoai An, Metz University, France
Yves Lechevallier, INRIA Roquencourt, France
Patrice Marcotte, University of Montre'al, Canada
Maurice Margenstern, Metz university, France
Panos Pardalos, University of Florida, USA
Jean Loup Risler, CNRS-University of Evry, France
Jean Paul Penot, University of Pau, France
Pham Dinh Tao, INSA-Rouen, France (Co-Chair)
Michel Thera, University of Limoges, France
Nguyen Van Thoai, University of Trier, Germany
Yinyu Ye, Stanford University, USA (Co-Chair)
Henry Wolkowicz, University of Waterloo, Canada
Zhijun Wu, University of Iowa, USA
Djamel Zighed, University of Lyon, France


Paper submission: March 30, 2004
Author notification: April 20, 2004
Early registration: May 5, 2004
Last version of accepted papers: May 5, 2004
Conference dates: July 1 to 3, 2004
Paper submission to special issues: October 30, 2004.


From: Ida Tassens <>
Date: Thu, 18 Dec 2003 14:22:02 +0100
Subject: Symposium in Belgium on Networks and Systems

16th International Symposium on Mathematical Theory of Networks and
Systems(MTNS 2004), Katholieke Universiteit Leuven (K.U.Leuven-Belgium),
July 5-9, 2004 (on-line registration and submission possible)

MTNS is one of the main conferences in the general area of mathematical
systems and control theory. The symposium is interdisciplinary and is aimed
at mathematicians, engineers and researchers interested in any aspect of
systems theory. MTNS is usually organized every two years and traditionally
covers areas involving a wide range of research directions in mathematical
systems, networks and control theory.

MTNS 2004 will be held on the campus of the Katholieke Universiteit Leuven
(K.U.Leuven - Belgium) in July 2004. The symposium program will include
plenary and semi-plenary lectures, mini-symposia, mini-courses, contributed

More information: or at the conference secretariat :

Ida Tassens,
Bart Motmans,
ESAT-SCD, K.U.Leuven
Kasteelpark Arenberg 10 B-3001 Leuven Belgium
T: +32-(0)16321709 F: +32-(0)16321970

Bart De Moor, K.U.Leuven (Chair)
Vincent Blondel, U.C.L (co-Chair)
Paul Van Dooren, U.C.L. (co-Chair)
Jan Willems, K.U.Leuven (co-Chair)


From: Volker Reichelt <>
Date: Thu, 18 Dec 2003 21:27:33 +0100 (CET)
Subject: Workshop in Germany on Fluid Multiphase Systems

WORKSHOP Announcement

Collaborative Research Center 540, RWTH Aachen, Germany
29-30 March, 2004


The Collaborative Research Center (CRC) 540 "Model-based Experimental Analysis
of Kinetic Phenomena in Fluid Multi-phase Reactive Systems" is a
multidisciplinary initiative of eleven research groups at RWTH Aachen and FZ
Juelich. It is funded by the Deutsche Forschungsgemeinschaft (DFG) since 1999.

Our goal is to develop a work process which allows the robust and efficient
improvement of our physical understanding leading to predictive mathematical
models. This work process integrates methods which have been studied separately
in the majority of cases, namely:

* development of experimental setup and measurement techniques,
* design of experiments with high information content,
* development of hypotheses and model structures, as well as
* data analysis and model structure adaption.

Within our work process high-resolution measurement techniques, numerical
simulation on different scales, as well as model-based methods for experimental
design and data analysis are employed. The development is performed by the
analysis of a number of challenging modeling problems. A detailed presentation
of our work can be found on our website:


The workshop will be held from March 29 to March 30, 2004 at RWTH Aachen
University, Aachen, Germany. The topics of the workshop will be:

* mass transfer in liquid mixtures and gel matrices,
* transport phenomena in single liquid drops and films,
* measurement techniques,
* modeling on different scales,
* inverse problems.

Invited talks from experts in these fields will be given as well as from CRC
540. The workshop is intended to bring researchers from the different areas
together. Since the range of topics is large the talks are intended to give an
overview rather than technical details.

The workshop will further offer a poster session which will be open for external


The following invited speakers have already confirmed their participation of
the workshop:

* S.V. Alekseenko, Russian Academy of Sciences, Russia - transport
in liquid films
* L.T. Biegler, Carnegie Mellon University, USA - inverse problems/optimization
for PDEs
* L. Gladden, University of Cambridge, UK - magnetic resonance in chemical
* M. Kraume, TU Berlin, Germany, investigation of single drops
* V.M.M. Lobo, University of Coimbra, Portugal - diffusion in electrolytes and
* C.C. Pantelides, Imperial College, UK - multi-scale modelling
* C. Schuette, FU Berlin, Germany - data analysis and simulation
* C. Tropea, TU Darmstadt, Germany - kinetics of evaporation and drying


More information can be found on the following webpage:


Andre Bardow (
Ernesto Kriesten (

Lehrstuhl fuer Prozesstechnik
(Process Systems Engineering)
RWTH Aachen
52056 Aachen

Phone: +49-(0)241-8094668
Fax: +49-(0)241-8092326


From: Nathalie Revol <>
Date: Fri, 19 Dec 2003 16:52:12 +0100 (CET)
Subject: Special Issue of TCS on Real Numbers and Computers

Special issue: Real Numbers and Computers
Guest editors: Marc Daumas and Nathalie Revol.

IMPORTANT DATES (tentative planning):
- Deadline for submissions of manuscripts: January 5th, 2004
(full papers only; extended abstracts will be rejected)
- Notification of acceptance/rejection: April, 2004
- Deadline for reception of final papers: July, 2004
- Parution: beginning of 2005

Efficient manipulation of real numbers in computers is still a
challenge. Many interesting theoretical and algorithmic problems are
linked with that topic and belong to quite distant fields such as
computer science, number theory, numerical analysis, computer algebra
and logics. A number of TCS special issues on real numbers and
computers has previously appeared (162 (1), 210(1), 279 (1-2) and 291
(2)), as follow-up to the RNC meetings on these topics. The last
meeting was RNC5 which took place in Lyon in September 2004, cf:
However, this call for papers is open to authors who did not attend RNC5.

Scientists working on questions related to real computer arithmetic
are encouraged to present the theoretical or algorithmic aspects of
their results, even if they did not attend the RNC5 conference. Survey
and tutorial articles may be suitable if clearly identified as
such. Topics include (but are not restricted to) the following list:
- any computational number system
- implemented by a software package or in hardware,
- floating and fixed point,
- serial, on line arithmetic,
- continued fractions,
- exact computations,
- multiple precision,
- interval and stochastic arithmetics.

The submission should contain a scholarly exposition of ideas,
techniques, and results, including motivation and a clear comparison
with related work. More details may be given in an appendix. Authors
may submit additional background reference material that is not widely
available. Submissions must not substantially duplicate work
published or submitted for publication elsewhere.

Prepare a PostScript or PDF version of your full 10-20 pages paper
preferably using Elsevier latex style

The file should either be uploaded to the special issue Internet site
(see url below) or be sent by e-mail to
and before January 5th. Please find upload site
and additional information at

Make sure that your PostScript or PDF file can be printed on a
standard laser printer. Another possible check is to view it by

Language: English.

We wish you a Merry Christmas and a Happy New Year 2004!


From: Paul Matthews <>
Date: Mon, 15 Dec 2003 13:59:22 +0000 (GMT)
Subject: Faculty Positions at University of Nottingham

University of Nottingham
School of Mathematical Sciences

Applications are invited for the following posts in the Division of
Applied Mathematics. The Unit of Assessment for Applied Mathematics was
graded 5 in the 2001 Research Assessment Exercise and the successful
candidates will be expected to contribute strongly to maintaining and
enhancing our research record.

Reader in Applied Mathematics

Candidates should have achieved research distinction in a branch of
applied mathematics and should have strong research leadership potential.
Salary will be within the range 35,251 - 39,958 per annum, depending
on qualifications and experience. Please quote ref. RUB/574S.

Lecturer in Applied Mathematics

Candidates should have achieved research distinction or have strong
research potential in a branch of applied mathematics. Salary will be
within the range 22,191 - 33,679 per annum, depending on
qualifications and experience. Please quote ref. RUB/575S.

Applications are particularly encouraged from candidates with research
accomplishments in computational applied mathematics, and from those whose
research activity complements current activity in the Division,
particularly in modelling applications such as fluid mechanics, materials,
complex systems, and medicine and biology. Candidates for both posts
should be strongly committed to high quality teaching.

Informal enquiries may be addressed to Professor O E Jensen, tel: 0115 951
3866 or Email: Information about the
Division of Applied Mathematics is available at:

Further details and application forms are available on the WWW at or from the Human
Resources Department, Highfield House, The University of Nottingham,
University Park, Nottingham, NG7 2RD. Tel: 0115 951 3262. Fax: 0115 951
5205. Please quote relevant reference number. Closing date: 30 January


From: Martin Berzins <>
Date: Sun, 14 Dec 2003 14:26:35 -0700 (MST)
Subject: Postdoctoral Position at University of Utah

Postdoctoral Researcher in Adaptive Mesh Refinement at University of Utah

A postdoctoral researcher is required to work on adaptive mesh
refinement (AMR) algorithms for The Center for the Simulation of
Accidental Fires and Explosions (C-SAFE), a DOE ASCI ASAP Level 1
center at the University of Utah in Salt Lake City.

This position requires experience in numerical algorithm development
and extensive programming expertise in C++. Specific experience with
cartesion mesh refinement (Structured AMR), while not required, is
highly desirable. The applicant should have a solid mathematics
background and some experience with CFD algorithms (preferably
multiprocessor/parallel codes). Experience with Lagrangian particle
simulations is also valuable, but not necessary.

The research aspects of the project will involve developing novel mesh
refinement algorithms for combined fixed mesh and particle codes being
used for modeling complex transient reacting fluid-structure
interactions. Development aspects include helping develop and extend
the existing parallel MPI C++ software framework and integrating new
AMR algorithms into the framework. The applicant will be ultimately
responsible for this portion of the software development.

Ability to work as part of a large multidisciplinary team is
essential. The applicant will work closely with chemical and
mechanical engineers in developing AMR algorithms for combustion
and structural mechanics, and with computer scientists in the
development of the AMR S/W framework.

C-SAFE Overview: C-SAFE focuses specifically on providing
state-of-the-art, science-based tools for the numerical simulation of
accidental fires and explosions, especially within the context of
handling and storage of highly flammable materials. The objective of
C-SAFE is to provide a system comprising a problem-solving environment
in which fundamental chemistry and engineering physics are fully
coupled with non-linear solvers, optimization, computational steering,
visualization and experimental data verification. More details may be
found at

This position is with the University of Utah's Scientific Computing
and Imaging (SCI) Institute ( The applicant
will work with Dr. Martin Berzins and Dr. Steve Parker and with a
multidisciplinary team of faculty, staff, and students.

Please apply to Dr. Greg Jones (jones@sci.utah.ed). Projected closing
date for applications is Jan 31, 2004.

Salary Range: 50 - 60K (Depending on experience.)
Benefits: The University of Utah offers a very competitive
benefits package. See
Start date: Feb, 2004.


From: Francesc Arandiga <>
Date: Thu, 18 Dec 2003 09:59:00 +0100 (MET)
Subject: Postdoctoral Position at the University of Valencia

The Numerical Analysis group at the Department of Applied Mathematics,
University of Valencia (see "") OFFERS TWO post-doctoral
positions for 2004.

These positions comply with the "mobility rules of
the EU" (see')
and are financed by the European Union through the Research Training
Network "Breaking Complexity", ("")

The research activities to be carried out by the applicants involve (but
are not restricted to) Nonlinear approximation theory,
data and image compression, wavelet-like techniques for the numerical
solution of hyperbolic PDEs.

The applicants should submit a short CV, a letter stating their research
interests and a recommendation letter.

Correspondence should be sent to (e-mail is OK):

Rosa Donat
Departament of Matematica Aplicada.
Universitat de Valencia.
C/ Dr. Moliner 50, 46100 Burjassot.
Valencia (SPAIN)
tel 34-96 354 47 27,
fax 34 96 354 40 85,


From: Joke Blom <>
Date: Fri, 19 Dec 2003 12:59:38 +0100 (CET)
Subject: Two PhD positions at CWI, Amsterdam

CWI is an internationally renowned research institute in mathematics and
computer science, located in Amsterdam, The Netherlands. The focus is on
fundamental research problems, derived from societal needs.

The research group "Nonlinear PDEs: Analysis and Scientific Computing"
at CWI has two 4-year positions for

PhD Students in Numerical Mathematics/Scientific Computing

on projects financed by the Netherlands Organisation for Scientific
Research, NWO, research program "Computational Life Sciences".

Project 1:
Mathematics and Computation for the Systems Biology of Cells

This project consists of 3 PhD positions. The other two are at SCS(UvA)
(Dr. Jaap Kaandorp), and at CWI (Prof. dr. Jan van Schuppen) / IMBW(VU)
(Prof. dr. Hans Westerhoff), respectively.

Research topic:

- development of novel multi-adaptive numerical algorithms for biochemical
reaction-diffusion problems with widely differing spatial and temporal scales,
for problems where the chemical scheme is space dependent and where in part
of the domain other, particle-based, solution methods can be used,
- implementation of these algorithms in a computational model
where flexibility and ease-of-use are the main requirements, and
- error estimation to assure that numerical errors do not overshadow
modelling errors.

More information about the project can be found at or contact
Joke Blom, e-mail:, tel.: +31 20 5924263, or
Dr. Mark Peletier, e-mail:, tel.: +31 20 5924226.

Project 2:
Simulation of developmental regulatory networks

This project consists of 2 PhD positions, one at CWI and the other at
SCS/UvA (Dr. Jaap Kaandorp).

Research topic: the development of numerical methods and software for a
hybrid discrete-continuum model where moving and deformable
cells in which biochemical reactions take place exchange species with the
surrounding environment modelled as a continuum in which species diffuse and
decay. Efficiency of the software is of utmost importance since the model
will be used in combination with optimization algorithms to explore large
parameter spaces and to select specific spatial and temporal expression

More information about the project can be found at or contact
Joke Blom, e-mail:, tel.: +31-20-5924263, or
Prof. dr. Jan Verwer,, +31-20-5924095.

Applications are invited from candidates with an MSc in (numerical)
mathematics, scientific computing or computational science, (computational)
physics, computational fluid dynamics, or a comparable expertise.
Candidates are also expected to have an active interest in life science

The salary with related employment conditions is according to regulations
for OIOs (Onderzoekers in Opleiding) in the "CAO-onderzoekinstellingen"
(collective employment agreement Dutch research institutes).
Moreover CWI offers attractive working conditions, including flexibility,
child care, and help with housing for foreigners.

You are invited to send an application, no later than January 31 2004, to

Joke Blom,
P.O. Box 94079,
1090 GB Amsterdam,
the Netherlands,

with mentioning of "PhD Vacancy MAS1 - RegNet" and/or
"PhD Vacancy MAS1 - CellMath".
Your application should provide a concise description of your
mathematical education, your CV, examination marks and if possible
a copy of your M.Sc thesis. Students who are about to finish
their M.Sc thesis are also encouraged to apply.


From: Raimondas Ciegis <>
Date: Wed, 17 Dec 2003 13:43:34 +0200 (WET)
Subject: Contents, Mathematical Modelling and Analysis

Mathematical Modelling and Analysis
ISSN 1392-6292
Electronical edition is available at:
Volume 8, Number 4, 2003


C. Cattani
Harmonic wavelets describing solitary wave propagation in materials
with microstructure . . . . . . . . . . . . . . . . . . . . . . . . 267

E. Lesauskien{\.e}, K. Du{\v c}inskas
Universal kriging for spatio-temporal data . . . . . . . . . . . . 283

H.-D. Liess, A. Ilgevi{\v C}ius
Analytical versus numerical calculations of physical problems.
The benefits of its combination . . . . . . . . . . . . . . . . . . 291

V.I. Mazhukin, M.M. Chuiko, A.M. Lapanik
Dynamic adaptation method for axisymmetric Stefan problems . . . . 303

I. Parts, A. Pedas
Collocation approximations for weakly Volterra integro-differential
equations . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 315

I. Tammeraid
Convergence acceleration and linear methods . . . . . . . . . . . 329

C. Timofte
Parabolic problems with dynamical boundary conditions in perforated
media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

G. Zayats, R. Kusin, V. Kapcevich
Modelling of plastic deformation of porous powder materials . . . . 351


End of NA Digest