NA Digest Sunday, June 24, 2007 Volume 07 : Issue 26

Today's Editor:
Tamara G. Kolda
Sandia National Labs

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From: Endre Suli <>
Date: Sat, 23 Jun 2007 00:55:45 +0100 (BST)
Subject: 2007 Leslie Fox Prize Winners

We are happy to announce the winners of the 13th Leslie
Fox Prize in Numerical Analysis, who presented their
papers to an audience of students and colleagues on June
22, 2007 at the Oxford University Computing Laboratory.

First Prize:

Ioana Dumitriu (University of Washington)
Yoichiro Mori (University of British Columbia)

Second Prize:

Timo Betcke (University of Manchester)
Laurent Demanet (Stanford University)
Daniel Kressner (Technical University Berlin)
Emre Mengi (University of California at San Diego)
Sheehan Olver (University of Cambridge)

Photographs of the finalists have been posted on

There was a very strong entry of 29 submissions for
this year's competition and the Adjudicators had an
exceptionally difficult task to decide on the shortlist.

A fuller report of the occasion will be forthcoming.

The 2007 Leslie Fox Prize Adjudicators:

Endre Suli (University of Oxford, Chair)
Andrew Stuart (University of Warwick)
Nick Higham (University of Manchester)


From: Felipe Cucker <>
Date: Wed, 20 Jun 2007 22:14:19 -0400
Subject: FoCM'2008 at Hong Kong, Jun 2008

Foundations of Computational Mathematics Conference
Hong Kong, June 2008

The next Foundations of Computational Mathematics conference will take
place at the City University of Hong Kong in Hong Kong, China, on 16-26
June 2008.

The conference, organised by the Society for Foundations of
Computational Mathematics, is the sixth in a sequence that commenced
with the Park City, Rio de Janeiro, Oxford, Minneapolis and Santander
FoCM meetings.

The conference will follow a well-tested format: plenary invited
lectures in the mornings and theme-centred parallel workshops in the
afternoons. Confirmed plenary speakers include:


The workshops to be held at FoCM 2008 are:

* Approximation theory * Asymptotic analysis
* Computational algebraic geometry * Computational dynamics
* Computational number theory * Foundations of numerical PDEs
* Geometric integration and computational mechanics
* Image and signal processing * Information-based complexity
* Learning theory
* Multiresolution and adaptivity in numerical PDEs
* Numerical linear algebra * Optimization
* Real-number complexity * Relations with computer science
* Special functions and orthogonal polynomials
* Stochastic computation

The FoCM conferences are designed to bring together workers in
computational mathematics and theoreticians in mathematics and in
computer science. While presenting plenary talks by foremost world
authorities and maintaining the highest technical level in the
workshops, the emphasis will be on multidisciplinary interaction
across subjects and disciplines, in an informal and friendly
atmosphere. We hope that it will be an opportunity to meet colleagues
from different subject areas and identify the wide-ranging (and often
surprising) common denominator of our research.

The preliminary website of the conference is at, where a list of the
workshops and their organizers can be found. More information about FoCM
and details of previous FoCM conferences can also be obtained there.
If you are interested in presenting a talk at one of the workshops,
please contact the relevant workshop organizers.

Felipe Cucker, Local Coordinator of FoCM 2008


From: "Int. J. Tomogr. Stat." <>
Date: Fri, 22 Jun 2007 23:37:34 -0700 (PDT)
Subject: Call for Papers : IJMS

International Journal of Mathematics and Statistics
ISSN 0973-8347

Call for Papers

Papers are invited for the International Journal of Mathematics &
Statistics (IJMS). The IJMS is a peer-reviewed journal, published in
Spring and Autumn i.e. two times a year. The IJMS publishes refereed,
well-written original research articles, and studies that describe the
latest research and developments in the area of applied mathematics
and statistics. This is a broad-based journal covering all branches of
mathematics and statistics. It's also published interdisciplinary

Manuscripts can be sent to the IJMS via e-mail to Editor-in-Chief. In
accordance with usual practice, papers previously published and are
under consideration for publication elsewhere cannot be accepted, and
authors must agree not to publish accepted papers elsewhere without
the prior permission of IJMS.

Detailed instructions on how to prepare your manuscript are available
at "Instructions for Author".


From: Jennifer Scott <>
Date: Thu, 21 Jun 2007 10:25:33 -0400
Subject: Research Scientist Position in Numerical Optimization at RAL

A permanent full-time research position is available at the STFC
Rutherford Appleton Laboratory to work in the Numerical Analysis Group
( The Group is one of the leading
numerical analysis groups in the UK and is internationally known for its
research and development of algorithms and software for the solution of
large sparse systems of linear equations, and of large-scale linear and
nonlinear optimization problems. The position is intended to enhance these
activities, particularly in the area of optimization and will be within a
research project led by Iain Duff, Nick Gould and Jennifer Scott. We are
seeking promising and highly motivated candidates with proven experience
in theoretical and practical optimization, with a bias towards solving
large-scale problems and a working knowledge of the solution of related
sparse/structured linear systems of equations. An important aspect of the
job will be the design and development of high-quality software for
inclusion within the Group's software libraries (HSL and GALAHAD) that
are used worldwide by academics and commercial organisations.

Candidates should possess a Ph.D. or equivalent degree in a
mathematics-related subject, with a strong emphasis on numerical analysis.
Applicants must be able to demonstrate their ability to perform independent
research and be able to work both on their own and
as part of a small team. Applicants must be able to communicate effectively
in both spoken and written English. Experience of programming in Fortran and
of parallel computing is highly desirable.

The salary will be in the range 24,638-35,543 GBP. Additional benefits
include an excellent working environment, a final salary pension scheme,
a generous leave allowance, and travel opportunities.

For an informal discussion about this post, please contact Dr Jennifer Scott
on +44 (0)1235 445131 or email

Applications may be made online at
For further information about the recruitment process, please contact Mandy
Spelzini on +44 (0)1235 445872 or e-mail quoting
Post Reference Number SPBU048

Deadline for Applications: 20 August 2007
Interview Date: Wednesday 10 September 2007


From: "Stefan Vandewalle" <>
Date: Sat, 23 Jun 2007 19:04:16 +0200
Subject: PhD & postdoc positions, Scientific Computing, K.U.Leuven (Belgium)

Subject: PhD and postdoc positions at the Scientific
Computing Research Group, K.U.Leuven (Belgium)

The Scientific Computing Research Group of the Department
of Computer Science, K.U.Leuven (Belgium) has several open
positions at the PhD and post-doctoral level. Candidates
should have a solid background in applied mathematics,
numerical analysis and/or computational science.

The positions are available on the projects:

Stochastic and fuzzy finite elements: numerical simulation
of dynamical systems with uncertain parameters
Multiscale simulation: numerical coarse-graining and
coupling of models across scales

Candidates for the postdoctoral positions must have research
experience and international publications on these particular

Candidates for the PhD-positions can find more information
about being a doctoral researcher at the K.U.Leuven via the

The positions start on October 1st, 2007 or any mutually
agreeable time after that date. The PhD-positions are
initially for two years, with the possibility of an
extension for another two years. Positions at the post-doctoral
level are for one year, with possibility of extension.

Electronic applications including a CV, a list of publications,
and the names of two possible references, are most welcome.


From: Yves Lucet <>
Date: Thu, 21 Jun 2007 12:26:42 -0400
Subject: Postdoc position, Medical Imaging, BC Cancer Agency, Kelowna, Canada

The Centre for the Southern Interior (British Columbia Cancer Agency), a
multi-disciplinary diagnostic, treatment and research organization dedicated
to cancer care in Kelowna BC, has an immediate opening for a post doctoral
Fellow in Medical Imaging with a 1 year (renewable) initial appointment.

This project will investigate and implement computerized methods for analyzing
breast density in digital mammograms. The methods will provide not only
efficient means to measure breast density, but also reproducible estimates
that will reduce errors of mammographic density measurements. Successful
candidate will also have opportunity to participate in other clinical research
activities at the cancer centre.

The ideal candidate has (i) a PhD in Physics, Mathematics, Computer Science,
Statistics or a related field, (ii) has strong programming skills, and (iii)
will start in September 2007. The project brings together a team of
researchers from the BC cancer agency, Screening Mammography Program of BC and
the University of British Columbia. Depending on the successful candidate’s
inclination and progress, opportunities for an additional temporary teaching
appointment at the University, for practical medical physics experience at the
BC Cancer Agency, or for a one-year extension will be explored.

More information about the position can be found at
For additional information please call: 250-712-3915 or e-mail Qualified applicants should submit a resume with the
names of three referees before 31st July 2007.

Address applications to:
Rasika Rajapakshe, Ph.D. FCCPM
BC Cancer Agency – Centre for the Southern Interior
399 Royal Avenue, Kelowna, BC V1Y 5L3, Canada


From: Hans Munthe-Kaas <>
Date: Thu, 21 Jun 2007 17:19:06 +0100
Subject: PostDoc + PhD - Bergen - Trondheim

Two positions, one Post Doc (2 years) + one PhD scholarship (3 years)
are available in Bergen and Trondheim (Norway) in the project
SpadeAce - Structure Preserving Algorithms for Differential
Equations, Applications, Computation, Education.

Interested candidates should contact Hans Munthe-Kaas
( as soon as possible.

Postdoctoral position:

A 2-year postdoctoral position is open within the project «SpadeAce -
Structure Preserving Algorithms for Differential Equations:
Applications Computation Education». The project is a cooperation
between research groups at University of Bergen (UiB), NTNU in
Trondheim and University of Oslo. The position will be affiliated
with either NTNU or UiB. A combination of one year at each of NTNU
and UiB is also possible. The candidate will participate in an
international research network devoted to the development of
structure preserving (geometric integration and compatible
discretization) algorithms for solving differential equations. The
project is in particular focusing on applications within mathematical
physics and continuum mechanics. We seek a candidate with background
from numerical analysis of differential equations, or possibly a
candidate with background from mathematical physics with interest in
developing new numerical algorithms. Knowledge of geometric
integration or compatible discretizations is an advantage.

PhD Scholarship:

At the Department of Mathematics, University of Bergen we have an
open PhD fellowship position for 3 years. The fellowship is financed
by the Norwegian research council through the project «SpadeAce ?
Structure Preserving Algorithms for Differential Equations:
Applications Computation Education».
The project is a cooperation between research groups at University of
Bergen, NTNU in Trondheim and University of Oslo. The candidate will
participate in an intnernational research network devoted to the
development of structure preserving (geometric integration and
compatible discretization) algorithms for solving differential
equations. The project is in particular focusing on applications
within mathematical physics. We seek a candidate with background from
some of the fields: numerical analysis and program development,
differential geometry or mathematical physics.

Best regards,
Hans Munthe-Kaas


From: BernhardMller <>
Date: Tue, 19 Jun 2007 13:03:39 +0200
Subject: PhD position in CFD at NTNU, Norway

PhD Position in the Computational Fluid Dynamics Research Group

At the Norwegian University of Science and Technology, a PhD
scholarship is available in the Computational Fluid Dynamics Research
Group at the Division of Fluids Engineering, Department of Energy and
Process Engineering, Faculty of Engineering Science and Technology.
We have been active in multiphase flow simulations and have had close
collaboration with SINTEF, The Foundation for Scientific and
Industrial Research at the Norwegian Institute of Technology.

The objective of the current PhD project 'Lattice Boltzmann Method for
Multiphase Flow Simulation' is to develop, analyze and apply lattice
Boltzmann methods for multiphase flow simulation. As the approach
originates from a microscopic description of fluid flow, modeling of
multiphase flow is expected to be easier in phase space than in
physical space. Microscopic multiphase models will be analyzed and
compared to macroscopic ones. After implementation and validation for
multiphase benchmark test cases, the lattice Boltzmann methods will be
applied to study the interaction of drops with liquid films in gas

The PhD candidate is expected to hold a master's degree in a subject
relevant for the PhD project and to have
* good knowledge of fluid dynamics,
* good knowledge of scientific computing, and
* good programming skills.
Some acquaintance with multiphase flow or molecular gasdynamics will
be useful.

The PhD scholarship is limited to 4 years. The annual gross salary
will be between NOK 325 600 and NOK 348 900. It is required that the
person employed satisfies the requirements for PhD students,
participates in the course program of the PhD studies and finishes the
PhD degree within 4 years. For 25 % of the time, the candidate will
assist the Division of Fluid Dynamics in teaching obligations.

Further information about the position may be obtained from
Professor Bernhard Müller (,
Professor Tor Ytrehus (, and
Dr. Maria Fernandino (

Applications, marked with IVT-60/07, grade transcripts and other
enclosures should be sent electronically through
Application deadline: 10 July 2007.


From: Stephen Langdon <>
Date: 20 Jun 2007 18:27:36 +0100
Subject: PhD Studentship, Department of Mathematics, University of Reading, UK

Mathematical Modelling of Terahertz Scattering

The goal is to develop analytical and computational methods for the
simulation of scattering of terahertz (THz) beams by sample geometries. Use
of THz spectroscopy and imaging is currently being explored for use in
numerous applications, such as defect-detection in materials and medical
imaging for cancer diagnosis, for which an accurate understanding of the
scattering of THz beams by complex objects is essential. Because of the
widths of the beams relative to the wavelengths involved, diffraction is a
very significant aspect of propagation and poses an extra challenge that
has to be accounted for in understanding scattering at THz frequencies.
Emphasis will be put upon developing an efficient approximate mathematical
description of the THz beam, via 1) a mathematical analysis of the
interaction of the beam with simple canonical shapes, and 2) a comparison
of mathematical results with corresponding experimental data. The primary
output from the project will be a novel, accurate and computationally
efficient description of the scattering of a THz beam, which will prove
invaluable for future applications of THz imaging and spectroscopy.

Start date: October 2007, or as soon as possible thereafter. Student
stipend: £12,600 in 2007-8, plus home/EU tuition fees for three years.
Applicants should possess a first degree in Mathematics (or related
subject) at grade 2:1 (or equivalent). Closing date for applications:
Friday 20th July, 2007. Application forms may be obtained from Please contact
Nick Biggs (, John Bowen (
or Stephen Langdon ( for further details.


From: Nick Higham <>
Date: Wed, 20 Jun 2007 11:56:24 +0100
Subject: 5 PhD positions in Manchester CICADA project

Five 4-year PhD studentships are available as part of the Centre
for Interdisciplinary Computational and Dynamical Analysis (CICADA)
project, which is joint between the School of Computer Science, School
of Mathematics and School of Electrical and Electronic Engineering
at The University of Manchester.

Applicants should have or expect to receive a good honours degree in
mathematics, computer science, control engineering or a related
discipline and show excellent promise for research.

The studentships pay fees at UK/EU rates and a maintenance award at
the EPSRC level which is currently GBP 12,600 per annum. To apply,
send a CV to Professor David Broomhead (

More details are at:

---Nick Higham


From: "Gladwell, Ian" <>
Date: Wed, 20 Jun 2007 14:11:57 -0500
Subject: Contents, ACM Transactions on Mathematical Software, Vol 33, No 2

Table of Contents
ACM Transactions on Mathematical Software, June 2007, Volume 33, Number 2

For more information, including abstracts and access to full text,

Hong Zhang, Barry Smith, Michael Sternberg, Peter Zapol
SIPs: Shift-and-invert parallel spectral transformations,
Article No. 9, 19 pages

Nicholas I. M. Gould, Jennifer A. Scott, Yifan Hu
A numerical evaluation of sparse direct solvers for the solution of
large sparse symmetric linear systems of equations, Article No. 10, 32

Steven Benson, Manojkumar Krishnan, Lois Mcinnes, Jarek Nieplocha,
Jason Sarich
Using the GA and TAO toolkits for solving large-scale optimization
problems on parallel computers, Article No. 11, 21 pages

J. C. Meza, R. A. Oliva, P. D. Hough, P. J. Williams
OPT++: An object-oriented toolkit for nonlinear optimization, Article
No. 12, 27 pages

Laurent Fousse, Guillaume Hanrot, Vincent Lefevre, Patrick Pelissier,
Paul Zimmermann
MPFR: A multiple-precision binary floating-point library with correct
rounding, Article No. 13, 15 pages

Howard C. Elman, Alison Ramage, David J. Silvester
Algorithm 866: IFISS, a Matlab toolbox for modelling incompressible
flow, Article No. 14, 18 pages

David F. Crouse
Remark on Algorithm 515: Generation of a vector from the
lexicographical index combinations, Article No. 15, 2 pages


From: ijcsm <>
Date: Mon, 11 Jun 2007 23:02:07 -0400
Subject: Contents, Intl. Journal of Computing Science and Mathematics (IJCSM)

International Journal of Computing Science and Mathematics (IJCSM)
Volume 1 - Issue 1 - 2007

The first issue of International Journal of Computing Science and
Mathematics has just been published. Please note

that this issue is available from the IJCSM home page
( ) and is also the free sample issue.

The issue is currently with printers for production of the hard copy
version, which will also be sent to all

Editorial Board members for circulation to relevant colleagues and other
experts in the field.

Table of Contents

1 - 15
Computational method for acoustic wave focusing
A.G. Ramm, S. Gutman

16 - 27
Stable multi-dimensional model reduction and IIR filter design
J. Abouir, A. Cuyt

28 - 41
Radial function collocation solution of partial differential equations in
irregular domains
V. Pereyra, G. Scherer, P. Gonzalez Casanova

42 - 57
On the development of effective algorithms for the numerical solution of
singularly perturbed two-point boundary

value problems
Steven Capper, Jeff Cash, Francesca Mazzia

58 - 97
Mathematical models of electrical discharges in air at atmospheric pressure:
a derivation from asymptotic analysis
Pierre Degond, Brigitte Lucquin-Desreux

98 - 106
A brief introduction to integrable systems
C. Brezinski

107 - 114
Chaos, diversity, turbulence and sustainable development
Jacques C.J. Nihoul

115 - 127
The realtime Vision System for small-sized target tracking
Andrey A. Boguslavsky, Sergey M. Sokolov

128 - 146
Riccati equations arising in boundary control of fluid structure interactions
I. Lasiecka, A. Tuffaha

147 - 156
A note on bar instabilities in very wide rivers
Philip Hall


From: Arieh Iserles <>
Date: Wed, 20 Jun 2007 13:34:31 -0400
Subject: Contents, Acta Numerica 16 (2007)

The contents of Acta Numerica 16 (2007) are

S.D. Bond & B.J. Leimkuhler, "Molecular dynamics and the accuracy of
numerically computed averages"

Mike Cullen, "Modelling atmospheric flows"

K.W. Morton & T. Sonar, "Finite volume methods for hyperbolic
conservation laws"

Vadim Shapiro, "Semi-analytic geometry with R-functions"

Eitan Tadmor, "Filters, mollifiers and the computation of the Gibbs

Nico Temme, "Numerical aspects of special functions"


From: "Peter J. Olver" <>
Date: Tue, 19 Jun 2007 12:23:53 -0500
Subject: Contents: Foundations of Computational Mathematics v. 7 n. 2

Foundations of Computational Mathematics
Volume 7 Number 2

"Lower Bounds and Nonuniform Time Discretization for Approximation of
Stochastic Heat Equations"
by Thomas Muller-Gronbach, Klaus Ritter
Pages 135 - 181

"Finiteness Theorems in Stochastic Integer Programming"
by Matthias Aschenbrenner, Raymond Hemmecke
Pages 183 - 227

"Integration and Optimization of Multivariate Polynomials by Restriction
onto a Random Subspace"
by Alexander Barvinok
Pages 229 - 244

"Optimality of a Standard Adaptive Finite Element Method"
by Rob Stevenson
Pages 245 - 269

End of NA Digest