NA Digest Sunday, July 18, 2004 Volume 04 : Issue 29

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

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From: Nils Wagner <>
Date: Mon, 12 Jul 2004 10:24:57 +0200
Subject: Nonlinear Matrix Equation

Dear NA readers,

Consider the following matrix equations

M X \Lambda^2 + D X \Lambda + K X = 0 (1)
X_0^H (X-X_0) = 0 (2)

where M,D,K are $n \times n$ real matrices.
X denotes a m-dimensional complex subspace
\Lambda is a square complex matrix of order m<<n.

One way to solve these equations for X, \Lambda is to apply the
vec-operator to (1), (2) followed by Newton's method.
However, this approach becomes inefficient in case of large problems.

Any pointer on this problem would be appreciated.

Nils Wagner


From: J. A. Hules <>
Date: Tue, 13 Jul 2004 15:31:43 -0700
Subject: INCITE 2005 Call for Proposals

The National Energy Research Scientific Computing (NERSC) Center at the
U.S. Department of Energy's Lawrence Berkeley National Laboratory
solicits proposals for large allocations of computing resources. The
Innovative and Novel Computational Impact on Theory and Experiment
(INCITE) program will award a total of 5.5 million processor hours and
100 terabytes of mass storage on the systems described at
<>. The program seeks computationally intensive
research projects of large scale, with no requirement of current
Department of Energy sponsorship, that can make high-impact scientific
advances through the use of a large allocation of computer time and data
storage at the NERSC facility. A small number of large awards is

Successful proposals will describe high-impact scientific research in
terms suitable for peer review in the area of research and also
appropriate for general scientific review comparing them with proposals
in other disciplines. Applicants must also present evidence that they
can make effective use of a major fraction of the 6,656 processors of
the main high performance computing facility at NERSC. Applicant codes
must be demonstrably ready to run in a massively parallel manner on that
computer (the IBM SP, Seaborg).

Eligibility: Principal investigators engaged in scientific research with
the intent to publish results in the open peer-reviewed literature are
eligible. This program specifically encourages proposals from
universities, other research institutions and industry. Industry is
specifically solicited to propose challenging problems that may be
solved using high performance computing research. There is no
requirement of current sponsorship by the Office of Science of the
Department of Energy, which sponsors the NERSC Center.

Application Process: Applications will be accepted only electronically,
following instructions found at
<>. Proposals will be
accepted until midnight PDT Wednesday, September 8, 2004. Awards are
expected to be announced by November 8, 2004, and access to the NERSC
facilities for the awardees will be established on December 1, 2004, and
remain in effect until November 30, 2005. Questions about the
application procedure should be directed to <>.


From: Taketomo Mitsui <>
Date: Mon, 12 Jul 2004 17:13:33 +0900
Subject: SciCADE Conference in Nagoya

2005 International Conference
Scientific Computation and Differential Equations
(SciCADE 2005)

Nagoya Conference Center (NCC), Nagoya, Japan
May 23 - 27, 2005

This meeting is concerned with scientific computing involving the
numerical solution of differential equations:
* ordinary differential equations
* partial differential equations
* dynamical systems
* differential algebraic equations
* software
Emerging numerical techniques in applications will be emphasized.
These include:
o optimization and optimal control
o inverse problems
o chemical and mechanical engineering
o molecular dynamics
o geometric integrators
o computer graphics
o validated computation
and more.

Please visit to our Web site for more details at

Previous Scicade meetings have been held approximately every two
years, with the six most recent taking place in Auckland (New Zealand),
Stanford (California), Grado (Italy), Fraser Island (Australia),
Vancouver (Canada) and Trondheim (Norway).

The meeting format includes plenary talks, minisymposia and
contributed talks as in the past SciCADE series.

Plenary speakers:
- Paul Barton (MIT)
- John C. Butcher (Auckland)
- Desmond J. Higham (Glasgow)
- Willem H. Hundsdorfer (CWI)
- Per Christian Moan (Oslo)
- Yoshio Oyanagi (Tokyo)
- Christof Schuette (Berlin)
- Masahiro Yamamoto (Tokyo)

Current list of minisymposium organizers includes:
Barbara Zubik-Kowal, Haruo Yoshida, Nobito Yamamoto,
Bob Skeel, Marlis Hochbruck, Ernst Hairer, Jason E. Frank,
Wayne Enright, Gustaf Soderlind, Ruediger Weiner,
Ewa B. Weinmueller, Daisuke Furihata, Guido Vanden Berghe,
Takashi Suzuki, Arieh Iserles

In addition the following will be featured:

> A New Talent Invited Speaker.
(For the application to New Talent Program, please visit to
our Web page.)
> The Dahlquist Prize for 2005.

International Scientific Committee (ISC) of the conference:
Tom Mitsui (Nagoya, Chair), Kevin Burrage (Brisbane),
Toshiyuki Koto (Nagoya), Christian Lubich (Tuebingen),
Brynjulf Owren (Trondheim), Linda Petzold (Santa Barbara)
and Zhong-Ci Shi (Beijing)

Important dates:
Submissions of title and abstracts for talks: Mar 15, 2005
Deadline for early bird registration fee: Mar 31, 2005
Last deadline for registration: Apr 20, 2005

We very much hope you will take part in this event.


From: Ruediger Seydel <>
Date: Mon, 12 Jul 2004 10:17:57 +0200 (MEST)
Subject: Faculty Position at University of Cologne

Professor (C3/W2)

Applications are invited from candidates with research focus
in Numerical Mathematics / Scientific Computing.
Candidates are expected to contribute to the teaching program
of the Mathematical Institute, and to take part in the
self-administration of the institute. Candidates must be able
to engage in research programs that exist in the Mathematical
Institute ( In particular we expect
cooperation with the Fraunhofer Institute for Algorithms and
Scientific Computing (SCAI). Candidates must be prepared to
lecture in German.

Applications from women will be given preference in cases of
equivalent relevance, competence and achievement. A related
employment policy is in place for disabled applicants.
Applications with the usual documents should be sent to the
Dean of the Faculty for Mathematics and Natural Sciences,
University of Cologne, Albertus-Magnus-Platz, D-50923 Cologne,
Germany. The deadline for applications is September 6, 2004.


From: Mary Ann Freeman <>
Date: Fri, 16 Jul 2004 15:51:20 -0400
Subject: Development Position at the MathWorks

The MathWorks is seeking a statistical software developer to join the
Math development team in Natick, MA. This team is responsible for the
math toolboxes such as Symbolic, Optimization, and Statistics.

For this position we seek someone with a Masters degree and 3-5 years
industry experience, or a PhD, in Statistics or in Applied Math with a
statistics concentration. We require experience with MATLAB or a
similar technical computing language. We prefer someone with commercial
software experience.

For more information on this position, visit
and click on "Search Jobs".

Mary Ann Branch Freeman
The MathWorks, Inc.


From: David Silvester <>
Date: Tue, 13 Jul 2004 14:27:33 +0100 (BST)
Subject: MSc Studentships at University of Manchester

The University of Manchester has EPSRC funding for prospective students
on their one year MSc programme in Applied Numerical Computing
starting September 2004. This programme develops mathematical and
computing skills of value in industry. For further details see

Applicants should have a First or Upper Second Class degree (or
equivalent qualification) in a subject which has a substantial
mathematics component. No knowledge of computing is assumed.
According to EPSRC requirements, candidates must be resident in the EC
to be eligible for remission of fees, and resident in the UK to be eligible
for a maintenance grant. (Certain other restrictions also apply).
Candidates will be considered for these studentships on application to
the admissions tutor: Professor N.J. Higham (


From: Peter Sweby <>
Date: Tue, 13 Jul 2004 14:41:04 +0100
Subject: PhD Studentships at University of Reading

The following studentships are avaible in the Mathematics Department of
the University of Reading, UK.

1. A three-year EPSRC Doctoral Training Studentship is available for a
suitably qualified student to start in October 2004.

2. A three year EPSRC CASE studentship with AWE Aldermaston is available
for a suitably qualified student to start in October 2004. The project
involves investigation of mesh-induced errors in CFD simulations of
converging compressible flow.

Applicants should have a good Bachelors or Masters degree in a
Mathematical or related science. Both studentships provide full funding
(fees + stipend) for UK students. All enquiries to Sue Davis
(, Tel: 0118-378-8991) at Department of
Mathematics, The University of Reading, PO Box 220, READING RG6 6AX.

Dr Peter K Sweby
Head of Department
Department of Mathematics
School of Mathematics, Meteorology & Physics
The University of Reading
Whiteknights PO Box 220
Reading RG6 6AX
+44 118 378 8675


From: Natalia Kopteva <>
Date: Tue, 13 Jul 2004 17:28:22 +0100
Subject: PhD Studentship at University of Limerick

Applications are invited for a 3-year PhD studentship starting October 2004.
The project "Numerical analysis of nonlinear singularly perturbed
reaction-diffusion equations" is funded by Science Foundation Ireland (SFI)
under the Basic Research Grants Programme 2004. The studentship will provide
fees plus the standard postgraduate stipend, currently EUR12,700 p.a., as
well as contributions to research expenses and conference fees. To apply for
the position, submit your full CV, including contact information for at
least two referees, and a covering letter explaining your research
interests. The closing date for applications is 10 August 2004, but later
applications might be considered if the position is not filed by that date.
Further details are given at

Enquiries and applications should be sent by email (preferably) or fax or
snail mail to Dr. Natalia Kopteva: <>, Department of
Mathematics and Statistics, University of Limerick, Limerick, Ireland, fax:
+ 353 - 61 - 334927.


From: Peter Olver <>
Date: Tue, 13 Jul 2004 22:16:22 -0500
Subject: Contents, Foundations of Computational Mathematics

Foundations of Computational Mathematics
Volume 4 Number 3

Counting Solutions to Equations in Many Variables over Finite Fields
Alan G. B. Lauder
p. 221

Decidability of Chaos for Some Families of Dynamical Systems
Alexander Arbieto, Carlos Matheus
p. 269

Counting Integer Flows in Networks
W. Baldoni-Silva, J. A. De Loera, M. Vergne
p. 277

Modeling Language Evolution
Felipe Cucker, Steve Smale, Ding-Xuan Zhou
p. 315


End of NA Digest