- Today's Editor:
- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Block Givens
- Resources for Computational Science Education
- Availability of MUMPS 4.3
- New Applications of Rational Approximation Theory
- New Book on Solitons and the Schrodinger Equation
- SIAM Conference on Numerical Combustion
- SIAM Conference on Parallel Processing for Scientific Computing
- ACM Symposium on Applied Computing
- IBM Herman Goldstine Postdoctoral Fellowship
- New Journal, Computational Methods and Function Theory
- Contents, Nonlinear Analysis
- Contents, Numerical Methods for Partial Differential Equations
- Contents, Mathematics of Control, Signals, and Systems
- Subscribe, unsubscribe, change address, or for na-digest archives:
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-------------------------------------------------------

From: John Halleck <John.Halleck@utah.edu>

Date: Fri, 29 Aug 2003 09:25:19 -0600 (MDT)

**Subject: Block Givens**

About three years ago I posted a request here for information on a Block

form of the Givens Rotation (i.e. a Givens or Givens like transformation

where the elements of the array are themselves Matrices). The replies I

got were all basicly "I don't have anything on Block Rotations, but here

is stuff on Block Reflectors". I appreciate, by the way, everyone's mail

at the time.

Now I've finally derived something that I think "fits the bill".

Has anyone seen something like this before?

Is this known under some other name?

Short summary:

I assume that

Notation:

A' means A transpose.

\A means A inverse.

Concatenation means multiply.

If I have [ X ] and want to zero the Y component with

[ Y ]

an orthogonal block matrix transformation, then I:

set B to have the value Y\X

set A to the upper triangular Cholesky factor of \(I+B'B)

set C to the upper triangular Cholesky factor of \(I+BB')

The matrix I want is then:

[ A AB' ]

[ -CB C ]

Of course, I require that the various needed inverses exist, and that

the matrices are conformable (specificly, Y need not be square ).

Send me email if you want the long summary: proof of orthogonality,

demonstration that it zeros the element Y, and a demonstration that

[for example] A is really upper_triangular_choleskey( X' \(X'X+Y'Y) X )

(which is a form most folk doing Givens should find more familiar),

etc.

-- John.Halleck@utah.edu

------------------------------

From: Dianne O'Leary <oleary@cs.umd.edu>

Date: Thu, 28 Aug 2003 13:16:41 -0400 (EDT)

**Subject: Resources for Computational Science Education**

The magazine Computing in Science and Engineering

(http://computer.org/cise/), published by IEEE and AIP, provides some

useful resources for computational science education.

The Computing Prescriptions column highlights a different computational

technique each issue. Past columns include articles on least squares

computations, Monte Carlo simulations, and multi-precision arithmetic.

The Education column focuses on educational issues.

Your Homework Assignment provides sample projects for computational

science courses. Past columns include image processing (linear algebra),

robot arm control (ordinary differential equations), and data clustering

problems (optimization).

Dianne O'Leary

------------------------------

From: Jean-Yves L Excellent <Jean-Yves.L.Excellent@ens-lyon.fr>

Date: Fri, 29 Aug 2003 16:25:17 +0200

**Subject: Availability of MUMPS 4.3**

We would like to announce the availability of MUMPS 4.3.

MUMPS (``MUltifrontal Massively Parallel Solver'') is a package for

solving linear systems of equations of the form A x = b, where the

matrix A is sparse and can be either unsymmetric, symmetric positive

definite, or general symmetric.

The main features of the package include the input of the matrix in

assembled format (distributed or centralized) or elemental format,

error analysis, iterative refinement, and return of a Schur complement

matrix. MUMPS is available in various arithmetics (real or complex,

single or double).

The software is written in Fortran 90 and both a Fortran 90 and a

C interface are provided. The parallel version is based on MPI.

A sequential version (MPI free) is also available.

MUMPS can be obtained free of charge at either

http://www.enseeiht.fr/apo/MUMPS/

or

http://www.ens-lyon.fr/~jylexcel/MUMPS/

The MUMPS team.

------------------------------

From: Annie Cuyt <Annie.Cuyt@ua.ac.be>

Date: Mon, 25 Aug 2003 17:28:03 +0200 (CEST)

**Subject: New Applications of Rational Approximation Theory**

Dear all,

In the past few years we have been rather successful in applying results

from rational approximation theory to some new technological problem

areas. For some problem domains we need univariate rational functions

(such as Pade approximants, rational interpolants, Pade-type approximants,

rational interpolants with prescribed poles, ...), while some applications

require multivariate rational approximants. Below we list papers or

talks in which some of the obtained results are discussed. These can be

downloaded from http://win-www.uia.ac.be/u/cant/.

We are very interested in receiving pointers to more and other problems that

could perhaps benefit from the use of rational models. The problems (1)

and (4) were for instance suggested to us by Weibo Gong (Massachusetts)

and Gene Golub (Stanford), respectively. All information can be emailed to

{Annie.Cuyt, Brigitte.Verdonk}@ua.ac.be. Many thanks in advance!

List of papers and talks available from http://win-www.uia.ac.be/u/cant/:

(1) network traffic models -> goto publications-preprints: [3] and [8]

(2) meta-modelling in electromagnetics -> goto conference talks

(3) development of high-precision function libraries -> goto conference talks

(4) 2- and 3-dimensional shape reconstruction -> in preparation

(5) multivariate pole detection -> goto publications-papers: [37]

(6) systems theory (image processing, ...) -> goto publications-papers: [53]

(7) closed queueing networks -> goto publications-papers: [9]

Prof. Dr. Annie CUYT

Mathematics & Computer Science

University of Antwerp (UIA)

Middelheimlaan 1

B-2020 Antwerpen

Belgium

Email annie.cuyt@ua.ac.be

http://www.uia.ac.be/u/cant

------------------------------

From: Julie Haenisch <Julie_Haenisch@pupress.princeton.edu>

Date: Mon, 25 Aug 2003 15:22:24 -0400

**Subject: New Book on Solitons and the Schrodinger Equation**

New from Princeton University Press

Semiclassical Soliton Ensembles for the Focusing Nonlinear Schr=F6dinger

Equation (AM-154)

By Spyridon Kamvissis, Kenneth D. T-R McLaughlin, and Peter D. Miller

http://pup.princeton.edu/titles/7561.html

This book represents the first asymptotic analysis, via completely

integrable techniques, of the initial value problem for the focusing

nonlinear Schr=F6dinger equation in the semiclassical asymptotic regime. This

problem is a key model in nonlinear optical physics and has increasingly

important applications in the telecommunications industry.

------------------------------

From: Kirsten Wilden <wilden@siam.org>

Date: Mon, 25 Aug 2003 11:51:00 -0400

**Subject: SIAM Conference on Numerical Combustion**

International Conference on Numerical Combustion (NC04)

Location: Hilton Sedona Resort & Spa, Sedona, Arizona

Dates: May 9-12, 2004

The Call for Presentations for this conference is available at:

http://www.siam.org/meetings/nc04/

Deadlines:

Minisymposium proposals: November 5, 2003

Minisymposium abstracts: December 3, 2003

Contributed abstracts in lecture or poster format: December 3, 2003

For additional information, contact SIAM Conference Department at

meetings@siam.org

------------------------------

From: Connie Young <cyoung@siam.org>

Date: Tue, 26 Aug 2003 12:46:38 -0400

**Subject: SIAM Conference on Parallel Processing for Scientific Computing**

Information regarding paper and poster competitions and travel awards for

the Eleventh Conference on Parallel Processing for Scientific Computing is

now available. Please visit http://www.siam.org/meetings/PP04/ for more

information.

DEADLINE DATES

Minisymposium proposals: August 28, 2003

Minisymposium abstracts: September 21, 2003.

Contributed abstracts in lecture or poster format: September 21, 2003.

Abstracts submitted for consideration for a student award: September 21, 2003.

Travel support applications: September 21, 2003.

AWARDS

Poster Competition

This competition is open to all poster contributors. Participation is

through submission of a 75 word abstract by September 21, 2003. A judging

panel will review posters at the poster session during the conference. A

winner will be selected in each of the three categories: algorithms,

applications, and software. The winners will receive a monetary award of

$200 and a certificate. Awards will be distributed on-site during the

conference.

Student Paper Prize Competition

This competition will consider contributions whose primary author is a

student (non-student co-authors are allowed). The paper can be part of a

minisymposium or a contributed session.

We will select the top eight contributions based on an extended abstract

and award them travel support grants of $750 each (total $6,000). To the

top three student presentations (judged during the conference) we will

provide monetary awards of $500 each (total $1,500) and a certificate.

Awards will be distributed on-site during the conference.

Travel support for Post-doctoral Junior Researchers

We can grant 12 awards, each of $750 (total $9,000) to offset expenses for

participating in the conference to post-doctoral junior researchers. The

selection will be based on an application and the acceptance of their

contributed paper/poster. Awards will be distributed on-site during the

conference.

Please visit http://www.siam.org/meetings/PP04/ for more information.

------------------------------

From: Adrian Sandu <asandu@cs.vt.edu>

Date: Thu, 28 Aug 2003 17:04:45 -0400 (EDT)

**Subject: ACM Symposium on Applied Computing**

2004 ACM SYMPOSIUM ON APPLIED COMPUTING (SAC'04)

SPECIAL TRACK ON COMPUTATIONAL SCIENCES

NICOSIA, CYPRUS, MARCH 14-17, 2004

Over the past 18 years, the ACM Symposium on Applied Computing

(SAC) has become a primary forum for applied computer scientists

and application developers from around the world to interact and

present their work. SAC'04 is sponsored by the ACM Special

Interest Group in Applied Computing (SIGAPP). The most recent

previous ACM SAC conferences were held in Villa Olmo, Como, Italy

(SAC'00); Las Vegas (SAC'01); Madrid, Spain (SAC'02); Melbourne,

Florida (SAC'03).

Authors are invited to contribute original papers to the

Computational Sciences Track hosted by SAC '04. Major topics

include, but are not limited to, parallel and high performance

computing, numerical and non-numerical algorithms, computational

applications in science and engineering, etc.

CONFERENCE WEB PAGE:

http://www.acm.org/conferences/sac/sac2004

http://www.cs.mtu.edu/~asandu/Conferences/SAC04/sac04-cs.html

IMPORTANT DATES:

Sept. 6, 2003 -- Last day for paper submission

Oct. 18, 2003 -- Author notification of acceptance

Nov. 8, 2003 -- Camera-ready copy due

Mar. 9-12, 2003 -- Conference

SUBMISSIONS AND INQUIRIES:

Adrian Sandu

Department of Computer Science

Virginia Polytechnic Institute and State University

Email: asandu@mtu.edu

------------------------------

From: Anshul Gupta <anshul@watson.ibm.com>

Date: Thu, 28 Aug 2003 11:02:22 -0400 (EDT)

**Subject: IBM Herman Goldstine Postdoctoral Fellowship**

2004-2005 IBM Herman Goldstine Postdoctoral Fellowship

The Mathematical Sciences Department of the IBM Thomas J. Watson

Research Center invites applications for its 2004-2005 Herman Goldstine

Postdoctoral Fellowship for research in mathematical and computer

sciences. The fellowship provides scientists of outstanding ability an

opportunity to advance their scholarship as resident department members

at the Research Center. The Research Center is located in Westchester

County, less than an hour north of New York City.

The Mathematical Sciences Department provides an atmosphere in which

basic research is combined with work on technical problems arising in

industry. Currently, about 100 permanent members, academic visitors,

and post-doctoral fellows are pursuing research in pure and applied

mathematics and in theoretical and exploratory computer science. Areas

of research include: Algorithms (approximation, randomized, and on-line);

Coding theory; Cryptography; Data mining (machine learning, pattern

recognition, and computational statistics); Dynamical systems and

differential equations; Economics (auctions, decision theory, game theory,

and experimental economics); High-performance computation (including

scientific computing and parallel computing); Numerical analysis;

Optimization (discrete, continuous, and stochastic); Probability theory

(computational finance, queuing, stochastic models, and risk management);

Statistics (time-series, multivariate analysis, design, and reliability);

Supply-chain and operations management (optimization and performance

modeling).

Close interaction with permanent department members is expected, but

fellows are free to pursue their own research interests.

One fellowship will be awarded. Candidates must have a Ph.D. degree

after September 1999 or should expect to receive one before the

fellowship commences in the second half of 2004. The stipend is expected

to be between \$87,000 and \$107,000, depending on the area and length

of experience.

Applications will be accepted between September 1, 2003 and December 20,

2003. For complete and updated details, including the application

procedure, please visit the following web-site:

http://www.research.ibm.com/math/goldstine.html

IBM is committed to work-place diversity, and is proud to be an

equal-opportunity employer.

------------------------------

From: CMFT Journal <cmft@wmax03.mathematik.uni-wuerzburg.de>

Date: Tue, 26 Aug 2003 13:28:06 +0200 (MET DST)

**Subject: New Journal, Computational Methods and Function Theory**

COMPUTATIONAL METHODS AND FUNCTION THEORY (CMFT)

CMFT is a new international mathematics journal which publishes carefully

selected original research papers in complex analysis (in a broad sense),

and on applications or computational methods related to complex analysis.

Survey articles of high standard and special current interest can be

considered for publication as well. Contributed papers should be written

in English (in rare cases exceptions may be considered), and in a lucid,

expository style. Papers should normally not exceed 30 printed pages.

Editors-in-Chief: S. Ruscheweyh (Wuerzburg), E.B. Saff (Vanderbilt)

Homepage: http://www.cmft.de

Email: office@cmft.de

Publisher: Heldermann Verlag, Lemgo (http://www.heldermann.de)

One volume (2 issues) per year. 300 pages per issue.

Sample copies upon request from the Wuerzburg office or the publisher.

TABLE OF CONTENTS

COMPUTATIONAL METHODS AND FUNCTION THEORY Volume 2 (2002), Number 1

(Abstracts online available at http://www.heldermann.de/CMF/cmf02.htm)

Asymptotic Behaviour of the Conformal Representation of a Jordan

Domain with a Small Hole in Schauder Spaces, Pages 1-27

M. Lanza de Cristoforis

Eisenstein Series in Complexified Clifford Analysis, Pages 29-65

R. S. Krau=DFhar

A Note on the Functional Equation f^n+g^n+h^n=3D1 and some Complex

Differential Equations, Pages 67-85

K. Ishizaki

Optimal Recovery and Extremum Theory, Pages 87-112

G. G. Magaril-Il'yaev, K. Yu. Osipenko, V. M. Tikhomirov

Semiduality of Small Sets of Analytic Functions, Pages 113-135

J. Grahl

Efficient Analytic Continuation of Power Series by Matrix Summation

Methods, Pages 137-153

N. Arakelian, W. Luh

Minimal Surfaces Whose Gauss Map Covers Periodically the Pointed

Upper Half-sphere Exactly Once, Pages 155-174

Z. Abdulhadi, D. Bshouty, W. Hengartner

Separation Principles and Riemann-Hilbert Problems, Pages 175-190

G. Semmler, E. Wegert

On the Poisson Representation of a Function Harmonic in the Upper

Half-Plane, Pages 191-213

S. Gerg=FCn, I. V. Ostrovskii

Complete Function Systems and Decomposition Results Arising in

Clifford Analysis, Pages 215-228

D. A. Lakew, J. Ryan

Minimal Harmonic Measure on Complementary Regions, Pages 229-247

R. W. Barnard, L. Cole, A. Solynin

Recent Results in the Geometry of Kleinian Groups, Pages 249-256

F. W. Gehring, T. H. Marshall, G. J. Martin

Normal Families of Meromorphic Functions whose Derivatives Omit a

Function, Pages 257-265

X. Pang, D. Yang, L. Zalcman

Geometrical Characterization of p-Hyperelliptic Planar Klein Surfaces,

Pages 267-279

B. Estrada

A Criterion for Quasi-simple Plane Curves, Pages 281-291

C. N. Genthner, S. Ruscheweyh, L. Salinas

On a Result of Chuang Related to Hayman's Alternative, Pages 293-297

J. D. Hinchliffe

------------------------------

From: Science Direct <sciencedirect@prod.lexis-nexis.com>

Date: Tue, 26 Aug 2003 12:31:25 -0400 (EDT)

**Subject: Contents, Nonlinear Analysis**

TABLE OF CONTENTS

Nonlinear Analysis Volume 55, Issue 3, Pages 191-333 (November 2003)

Some results on positive solutions of equations including the p-Laplacian

operator, Pages 191-207

Celine Azizieh

A note on the dynamics of an oscillator in the presence of strong friction,

Pages 209-216

H. Amann and J. I. Diaz

Multiple solutions to p-Laplacian equation with singularity and cylindrical

symmetry, Pages 217-232

Benjin Xuan

Global existence and nonexistence for a class of degenerate parabolic systems,

Pages 233-244

Weibing Deng, Li Yuxiang and Xie Chunhong

Positive doubly periodic solutions of nonlinear telegraph equations,

Pages 245-254

Yongxiang Li

Existence and interrelation between set and fuzzy differential equations,

Pages 255-268

V. Lakshmikantham and A. A. Tolstonogov

An inverse source problem for the wave equation, Pages 269-284

Bui An Ton

Perron-type stability theorems for neutral equations, Pages 285-297

T. A. Burton

A stacking theorem approach for fuzzy differential equations, Pages 299-312

Ravi P. Agarwal, Donal O'Regan and V. Lakshmikantham

Coexistence of three species in a strongly coupled elliptic system,

Pages 313-333

Kwang Ik Kim and Zhigui Lin

TABLE OF CONTENTS

Nonlinear Analysis Volume 55, Issues 1-2, Pages 1-189 (October 2003)

Nonlinear ergodic theorems for general curves defined on general semigroups,

Pages 1-14

Gang Li and Jong Kyu Kim

Variational problem for vortices attached to seamounts, Pages 15-24

Jonas Nycander and Behrouz Emamizadeh

Krasnoselskii's fixed point theorem for weakly continuous maps, Pages 25-31

Cleon S. Barroso

The first eigenvalue of the p-Laplacian on a compact Riemannian manifold, Pages 33-46

Shigeo Kawai and Nobumitsu Nakauchi

Varying boundary conditions in a general class of elliptic problems of mixed

type, Pages 47-72

Santiago Cano-Casanova and Julian Lopez-Gomez

Positive solutions for sublinear periodic parabolic problems, Pages 73-82

T. Godoy, U. Kaufmann and S. Paczka

Existence of positive solutions for some nonlinear elliptic equations on

unbounded domains with cylindrical ends, Pages 83-101

Kazuhiro Kurata, Masataka Shibata and Kazuo Tada

On weak solutions for hyperbolic differential inclusion with discontinuous

nonlinearities, Pages 103-113

Jong Yeoul Park, Hyun Min Kim and Sun Hye Park

Exact multiplicity for periodic solutions of Duffing type, Pages 115-124

Hongbin Chen, Yi Li and Xiaojie Hou

Existence, uniqueness and continuous dependence for implicit semilinear

functional differential equations, Pages 125-139

A. G. Rutkas and L. A. Vlasenko

First and invariant integrals in stability problems, Pages 141-152

Luigi Salvadori and Francesca Visentin

Degenerate branching points of autonomous Hamiltonian systems, Pages 153-166

Wiktor Radzki

Positive solutions for elliptic equations involving critical Sobolev exponents

and Hardy terms with Neumann boundary conditions, Pages 167-186

Pigong Han and Zhaoxia Liu

A technical note concerning one example, Pages 187-189

Duan Bednaik and Karel Pastor

------------------------------

From: S. White <stwhite@wiley.com>

Date: Tue, 26 Aug 2003 14:46:37 -0400

**Subject: Contents, Numerical Methods for Partial Differential Equations**

Numerical Methods for Partial Differential Equations

Volume 19, Issue 6=A0(November 2003)

http://www3.interscience.wiley.com/cgi-bin/jhome/35979

Articles in the Current Issue:

Error estimates for finite volume element methods for general second-order

elliptic problems

Haijun Wu, Ronghua Li

pp. 693-708

Mixed finite element approximation of an MHD problem involving conducting

and insulating regions: The 3D case

J. L. Guermond, P. D. Minev

pp. 709-731

Solution of solute transport in unsaturated porous media by the method of

characteristics

Jozef Kaur, Mohammed Shuker Mahmood

pp. 732-761

An optimal nonlinear Galerkin method with mixed finite elements for the

steady Navier-Stokes equations

Yinnian He, Aiwen Wang, Zhangxin Chen, Kaitai Li

pp. 762-775

Bivariate spline method for numerical solution of time evolution

Navier-Stokes equations over polygons in stream function formulation

Ming-Jun Lai, Chun Liu, Paul Wenston

pp. 776-827

Multipole fast algorithm for the least-squares approach of the method of

fundamental solutions for three-dimensional harmonic problems

I. Saavedra, H. Power

pp. 828-845

A high-order compact boundary value method for solving one-dimensional heat

equations

Haiwei Sun, Jun Zhang

pp. 846-857

------------------------------

From: Corry Magrijn <magrijn.secsup@tip.nl>

Date: Wed, 27 Aug 2003 22:34:13 +0200

**Subject: Contents, Mathematics of Control, Signals, and Systems**

TABLE OF CONTENTS

Mathematics of Control, Signals, and Systems (MCSS)

Volume 16 (2003), Number 1

D. D'Alessandro,

Controllability of one spin and two interacting spins.

MCSS 16 (2003), 1-25.

A. Feintuch,

Orthogonal embeddings of linear time-varying systems.

MCSS 16 (2003), 26-43.

D.M. Boskovic, A. Balogh and M. Krstic,

Backstepping in infinite dimension for a class of

parabolic distributed parameter systems.

MCSS 16 (2003), 44-75.

P. Benner, V. Hernandez and A. Pastor,

The Kleinman iteration for nonstabilizable systems.

MCSS 16 (2003), 76-93.

------------------------------

End of NA Digest

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