NA Digest Saturday, May 31, 2003 Volume 03 : Issue 22

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

Submissions for NA Digest:

Mail to

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


From: Alan George <>
Date: Thu, 29 May 2003 16:22:53 -0400
Subject: Margaret Wright to Receive Honorary Doctorage from Waterloo

Margaret Wright will receive an honorary doctorate (D.Math) from the
University of Waterloo at its spring convocation this June 14, 2003.
Margaret received her PhD in Computer Science from Stanford University
in 1976, and remained there in its famed Department of Operations
Research until 1988. Subsequently she spent 14 years with the Computing
Sciences Research Center at Bell Laboratories, rising to Head of the
Scientific Computing Research Department in 1997. Currently, she is
Chair of the Computer Science Department at New York University.

Margaret is widely known and respected internationally for her many
contributions to the field of continuous optimization. She, together
with colleagues Phillip Gill, Walter Murray, and Michael Saunders, has
led a revolution in the development of stable algorithms and software
for solving a wide variety of problems in numerical optimization.

Margaret has also been active in service to the mathematical community.
She served as President of the Society for Industrial and Applied
Mathematics (SIAM) in 1995-6, and serves or has served on numerous
senior federal government advisory committees and editorial boards. She
was elected to the National Academy of Engineering in 1997, and was
chosen Emmy Noether Lecturer by the Association of Women in Mathematics
in 2000. She was selected as the Forsythe Lecturer by the Stanford
Computer Science Department in 2000 as well. In 2001 she received the
American Mathematical Society Award for Distinguished Public Service.

Congratulations to Margaret from her many friends and colleagues in the
scientific computing community!

Alan George


From: Dirk Laurie <>
Date: Thu, 29 May 2003 08:50:26 +0200
Subject: Archimedes Was Not An Idiot

In the idiosyncratic but delightful book "Real Computing made Real"
by Forman S. Acton (1996), there appears (p.172) under the heading
"ARCHIMEDES, DESPAIR!" the iteration
s_{n+1} = 2^n sqrt(2(1-sqrt(1-(s_n/2^n)^2)))
for n=2,3,... with s_2=2 sqrt 2
which in infinite precision converges to pi, but is numerically unstable.
The formula earlier appears (p.17) in another very pleasing book
"Essentials of Numerical Analysis" by Peter Henrici (1982), in a
discussion starting with the words "Following Archimedes ..." as
y_{k+1} = 2^(k+1) sqrt((1/2)(1-sqrt(1-(2^(-k)y_k)^2)))
with y_1=2, which gives y_k=s_k. Anyone who has seen what Archimedes
actually did (e.g. look at Heath's translation) will realize that
to attribute this grotesque and useless formula to the world's first
numerical analyst is a monstrous distortion. The original algorithm is
t_{k+1} = c_k + t_k
c_{k+1} = sqrt(1+t_{k+1}^2)
which gives
2^k n_0 / c_k < pi < 2^k n_0 / t_k
when started with t_1=sqrt(3), c_1=2, n_0=3. Elegant, simple and stable.

The question I pose to NA-netters is: who started this slander? Can 1982
really be the first year in which it appeared?

Dirk Laurie


From: Jose Roman <>
Date: Thu, 29 May 2003 15:01:37 +0200
Subject: Software for Eigenvalue Problems Available

SLEPc: Scalable Library for Eigenvalue Problem Computations

We are pleased to announce the release of SLEPc 2.1.5, a parallel
software library for the solution of large sparse eigenvalue problems on
parallel computers. It can be used for the solution of problems
formulated in either standard or generalized form, both Hermitian and
non-Hermitian, with either real or complex arithmetic.

SLEPc is built on top of PETSc, the Portable Extensible Toolkit for
Scientific Computation ( It can be
considered an extension of PETSc providing all the functionality
necessary for the solution of eigenvalue problems. SLEPc includes
several eigensolvers as well as interfaces to other libraries such as
ARPACK. It also provides built-in support for spectral transformations
such as shift-and-invert.

This software should be considered as part of an ongoing project and we
plan to continue its improvement by adding more solvers and tools.
Please send bug reports, questions, and requests for new features to

The SLEPc team
Vicente Hernandez, Jose E. Roman, Vicent Vidal
Universidad Politecnica de Valencia, Spain


From: Olavi Nevanlinna <>
Date: Tue, 27 May 2003 11:00:48 +0300
Subject: New Book, Meromorphic Functions and Linear Algebra

New monograph from AMS:
Meromorphic Functions and Linear Algebra - Olavi Nevanlinna, Helsinki
University of Technology - AMS, 2003, 136 pp., Hardcover, ISBN
0-8218-3247-6, List: $49, All AMS Members: $39, FIM/18

The book shows how one can have perturbation theory for the
resolvent under low rank updatings. For example, if the spectrum of
a matrix collapses under such an updating, then necessarily the
eigenvectors become badly conditioned. This qualitative phenomenon
is made quantitative by measuring the resolvent as a meromorphic
function. Applications are given to Krylov methods and to power

For more information please visit:


From: Ali Sayed <>
Date: Thu, 29 May 2003 19:09:42 -0700
Subject: New Book, Fundamentals of Adaptive Filtering

New Book Announcement

Ali H. Sayed

John Wiley & Sons, NY, 2003
Hardcover 1168 pages.
ISBN 0-471-46126-1


This graduate-level textbook offers a comprehensive and
up-to-date treatment of adaptive filtering; a vast and fast-moving
field. The book is logically organized, specific in its presentation
of each topic, and far-reaching in scope. Throughout the
presentation, special emphasis is placed on geometric constructions
and linear algebraic and formulations.

The textbook offers a fresh, broad, and systematic treatment of
of the field; it illustrates extensive commonalities that exist
among different classes of adaptive algorithms and even among
different filtering theories. The book also provides a uniform
treatment of the subject matter, addressing some existing
limitations, providing additional insights, and detailing
extensions of current theory.

The book is designed to be self-contained, with careful attention
given to appendices, problems, examples, and a variety of
practical computer projects. The bibliography is up-to-date
with extensive commentaries on how the contributions relate
to each other in time and in context.

Each chapter includes concepts that reinforce the principles
covered, bibliographic notes for further study, numerous
problems that vary in difficulty and applications, 24 computer
projects that illustrate real-life applications, and several
helpful appendices.

MATLAB programs that solve all computer projects are avaliable
for download by all readers from the publisher's website at The computer
projects feature topics such as linear and decision feedback
equalization, channel estimation, beamforming, tracking of
fading channels, line and acoustic echo cancellation, active
noise control, OFDM receivers, CDMA receivers, and even
finite precision effects.

A complete solutions manual for all problems in the book is
available to instructors upon request.


1. Optimal Estimation.
2. Linear Estimation.
3. Constrained Linear Estimation.
4. Steepest-Descent Algorithms.
5. Stochastic-Gradient Algorithms.
6. Steady-State Performance of Adaptive Filters.
7. Tracking Performance of Adaptive Filters.
8. Finite-Precision Effects.
9. Transient Performance of Adaptive Filters.
10. Block Adaptive Filters.
11. The Least-Squares Criterion.
12. Recursive Least-Squares.
13. RLS Array Algorithms.
14. Fast Fixed-Order Filters.
15. Lattice Filters.
16. Laguerre Adaptive Filters.
17. Robust Adaptive Filters.

About the Author:

A. H. Sayed is Professor of Electrical Engineering at UCLA.
He is a Fellow of IEEE for his contributions to adaptive
filtering and estimation algorithms.

Read the preface of the book and download a sample chapter at


From: David F Griffiths <>
Date: Fri, 30 May 2003 17:05:40 +0100
Subject: Dundee NA Conference

Tuesday 24 June - Friday 27 June, 2003


The conference will be held at the West Park Conference Centre,
University of Dundee starting at 9am on Tuesday and concluding at
lunchtime on Friday. The deadline for registration is: 6 June.

Details of registration/accommodation fees are available at the
conference web site:

by clicking on the "Register" button.

All participants will be alerted by email when the timetable of talks
is posted on the web site.

Conference Secretaries:
David Griffiths
Alistair Watson

Contact (email preferred)

Dr David F. Griffiths
Numerical Analysis Conference
Department of Mathematics
The University of Dundee
Dundee DD1 4HN
Scotland, UK

Telephone: +44(1382)344467/344471
FAX : +44(1382)345516


From: Shi Zhong-ci <>
Date: Mon, 26 May 2003 08:47:53 +0800 (CST)
Subject: Conference in Beijing Postponed

Dear Colleagues,

Due to the present SARS situation in Beijing, after consulting with
related associations, we have decided to postpone the proposed
International Conference on Control, Partial Differential Equations
and Scientific Computing, dedicated to late Prof. J.-L. Lions,
Beijing, Sept 7-11, 2003(NA-Digest, V.03, #10) to Sept 13-16 of 2004.

We are very sorry for the inconvenience caused to all participants.
We are expecting that you may accept this considerable change and
will be able to attend the conference in the later date.

Thank you and best regards,

Zhong-Ci Shi and Chi-Wang Shu
Co-chairs, Scientific Committee and


From: Laurence Yang <>
Date: Mon, 26 May 2003 05:54:43 -0300
Subject: Workshop in Taiwan on High Performace Computing

According to many requests, the new deadline for paper submission is granted
until June 1, 2003.

We fully understand that due to the issue of SARS, you become hesitated to
submit a paper. If you have been considering submitting a paper, we urge you
to submit it. We will try to print and distribute the proceedings even if
you can not travel and present your paper, and we will also offer the best
selected papers for a parallel computing journal.


The 5th Workshop on High Performance Scientific and Engineering Computing with
Applications (HPSECA-03)

Kaohsiung, Taiwan, ROC
October 6-9 (Monday-Thursday), 2003

in conjunction with

Workshop Organizers:

Prof. Yi Pan (General Co-Chair)
Department of Computer Science
Georgia State University
Atlanta, GA 30303, USA

Prof. Robert van de Geijn (General Co-Chair)
Department of Computer Science
University of Texas at Austin
Austin, TX 78712, USA

Prof. Laurence Yang (Program Chair)
Department of Computer Science
St. Francis Xavier University
Antigonish, B2G 2W5, NS,Canada


From: Julio Banga <>
Date: Mon, 26 May 2003 11:22:18 +0200
Subject: Workshop in Barcelona Computing for the Food Sector

AFoT 2003
27-28 November 2003, BARCELONA, Spain

Call for Papers

Authors from industry and academia are invited to submit short abstracts
through the web site

*Deadline*: July 10th 2003.
Instructions at


The main objective of this second edition of the AFoT Workshop is to provide
a thorough introduction into the most important issues regarding the use of
Information Technologies, Mathematical and Computing techniques in the context
of the food processing sector. Topics of interest include novel IT-related
methods and tools (e.g. web-based simulation and decision support systems)
plus all the traditional computer simulation techniques (especially regarding
distributed process systems), as well as signal processing techniques for
advanced sensors.

Workshop Venue

International Centre for Numerical Methods in Engineering.
UPC Campus Nord
Gran Capit=E0, s/n
08034- Barcelona



E. Balsa-Canto, CIMNE-UPC, Spain
J. R. Banga, IIM-CSIC, Spain

Scientific committee

A.A. Alonso, IIM-CSIC, Spain
A. K. Datta, Cornell University, USA
P. de Jong, NIZO Food Research, The Netherlands
T. Jongen, Unilever Research, The Netherlands
B. Nicola=EF, K. U. Leuven, Belgium
G. van Straten, Wageningen U., The Netherlands
G. Trystran, ENSIA-INRA, France

Organising committee

S. Aguilar, DAUMAR S.A., Spain
C. de Prada, Univ. Valladolid , Spain
X. Gimeno, DAUMAR S.A., Spain
A. Font, CIMNE, Spain
F. Guzm=E1n, CIMNE, Spain
J. M. Iglesias, DAUMAR S.A , Spain
J. Mora, CIMNE, Spain
E. O=F1ate, CIMNE, Spain

More information at


From: Simon Shaw <>
Date: Sat, 31 May 2003 12:30:49 +0000
Subject: Workshop at Brunel on Constitutive and Computational Vicoelasticity

Workshop on Viscoelastic Constitutive Modelling and Computation

25 June 2003
Brunel University

To be held on June 25, immediately after the MAFELAP 2003 conference
(, this workshop will focus
on nonlinear modelling and subsequent computational simulation of
viscoelastic solid polymers. The invited speakers are:

RA Schapery (Texas)
Constitutive modelling of nonlinear viscoelastic solids

OG Harlen (Leeds)
Molecular models of viscoelastic flows

HT Banks (NCSU)
Molecular-based continuum models for tensile deformations of rubber

AR Johnson (US Army)
An approximate dissipation function for large strain rubber
thermo-mechanical analysis

A Tessler (NASA)
Computationally suitable hierarchical higher-order bending theories
modelling complete through-thickness deformation

The workshop will take place in Brunel's Graduate School
(Uxbridge campus, room PH055) beginning at 9:00AM and finishing
at 5:30PM. There is no charge for attendance but participants
will be expected to meet their own travel and lunch costs.

For more information please visit


From: Pablo Negro <>
Date: Tue, 27 May 2003 12:41:46 -0400
Subject: Conference in Puerto Rico on Continuation Methods in Elasticity

Dear Colleague:

The Department of Mathematics of the University of Puerto Rico at Humacao,
through a grant by the National Security Agency, is organizing a conference
series on Global Continuation Methods in Nonlinear Elasticity. The
conference program consists of a five-day seminar of ten lectures to
stimulate interest and mathematical research among the mathematical
community of Puerto Rico, the Caribbean, and the U.S.A., on recent
developments in degree theoretic techniques and their applications to
problems in nonlinear elastostatics. The conference is programmed for the
week of August 4-8, 2003. The principal lecturer for the conference series
will be Tim Healey from Cornell University. In addition to the lecture
series, we will have additional invited talks and discussion groups.
Anybody with an interest in nonlinear elasticity, nonlinear partial
differential equations, or degree theoretic methods, is welcome to
participate. Partial or full support will be given to a limited number of
participants. The application deadline is July 15, 2003. Further information
about the conference, application materials, and lodging can be found at the
conference web site at

Or by directly contacting the conference organizers

Pablo V. Negr


From: Kirsten Wilden <>
Date: Tue, 27 May 2003 14:28:18 -0400
Subject: ACM-SIAM Symposium on Discrete Algorithms

ACM-SIAM Symposium on Discrete Algorithms (SODA04)
Conference Program Chair: Ian Munro, University of Waterloo
Location: Astor Crowne Plaza Hotel, New Orleans, LA
Dates: January 11-13, 2004

The Call for Presentations is now available at

For additional information, contact the SIAM Conference Department at


From: Sizwe Mabizela <>
Date: Wed, 28 May 2003 14:54:53 +0200
Subject: Faculty Positions at the University of Cape Town, South Africa

University of Cape Town


The Department is a large and dynamic organisation with an
establishment of over thirty faculty members. We seek to make four new

Applications are sought for posts at all levels, from Lecturer to
Professor, in all fields of interest to the Department (see our
website at for details of research groups). We
particularly encourage applications from candidates with research and
teaching interests in one or more of Algebra, Algebraic Geometry,
Algebraic Topology, Computational/Numerical Mathematics, Cosmology and
General Relativity theory, Fluid and Solid Mechanics, Formal Aspects
of Computing, Industrial Mathematics (Partial Differential Equations
and Applications). Applications are also welcomed from candidates
whose activities include the application of one or more of these
disciplines in physics and/or engineering.

With Professor GFR Ellis due to retire at the end of 2004, the
Department seeks an outstanding scientist in the fields of Cosmology
and General Relativity at the level of professor, although
applications at other ranks are also welcome.

Applications will be considered in all areas of Gravitational Physics,
but preference will be given to candidates who work in the following
areas: mathematical cosmology, physics of the early Universe,
theoretical and/or data analysis aspects of the Cosmic Microwave
Background, and Relativistic Astrophysics.

Applicants for senior positions should have good teaching and strong
international research records, and the ability to raise research
funding and develop strong research programmes in their fields of
interest. Candidates should indicate for which level of position they
are applying. Level of appointment will be commensurate with
experience and standing of applicants.

The remuneration packages are negotiable and include highly
competitive benefits.

Please send a letter of application, your CV (no certificates), a
one-page summary of your CV, and details (tel/email) of 3 referees, to:

Staff Recruitment & Selection (Ref: 727)
University of Cape Town
South Africa 7701.

Review of applications will begin on 15 July 2003 and will continue
until the positions are filled.

For further information,
tel: +27 21 650-2220;
fax: +27 21 650-2138;

The University is fully committed to employment equity
( and particularly welcomes
applications from suitably qualified black South Africans, women and
persons with disabilities.


From: Wim Michiels <>
Date: Mon, 26 May 2003 16:06:00 +0200
Subject: Postdoctoral / Ph.D. Position at K.U. Leuven

Postdoctoral / Ph.D. position on "Numerical methods for stability
and control of forced systems with time-delay"

In the Scientific Computing Research Group of the Department of
Computer Science of the K.U. Leuven a research position is available
for a Postdoctoral researcher or a Ph.D. student on a project in the
area of control of forced systems with time-delay. The project is of
a multidisciplinary nature, with focus on theory, as well as
implementation (development of numerical tools) and applications.
The theoretical part consists of research on generalizations and
extensions of the stability theory of time-varying and periodic
control systems and the theory of vibrational control towards
classes of systems with time-delay.
The implementation part is devoted to the development of tools for
the numerical stability and bifurcation analysis of forced systems
with time-delay.
Applications include vibrational control and control of chatter in
mechanical tools (such as rotating cutting and milling machines).
This part will of the research will be in close collaboration with
other research groups.
The Scientific Computing Research Group participates in a Belgian
interuniversity network on systems and control (IAP-V, Inter-
university Attraction Pole on Dynamical Systems and Control:
Computation, Identification and Modelling, see ). Therefore the researcher
will be encouraged to participate actively in this network and
to collaborate with other teams within the network.
Candidates preferably have a background in the field of control
of time-delay systems or in numerical bifurcation analysis.
The position is available for 2 years (postdoc) or 4 years
(Ph.D. student).
Interested candidates should send their C.V. to Dirk Roose,
Department of Computer Science, K.U. Leuven, Celestijnenlaan 200A,
3001 Heverlee, Belgium,


From: Jesse Barlow <>
Date: Tue, 27 May 2003 10:13:34 -0400 (Eastern Standard Time)
Subject: Special Issue of Computational Statistics and Data Analysis

Special Issue of Computational Statistics and Data Analysis
Matrix Computations and Statistics II

A number of interesting and important ideas have resulted from the
relationship between matrix computations and statistics. Well known examples
include the solution of least squares problems, computation of the singular
value decomposition and its generalizations, estimation of principal
components, computation of canonical correlations, several cluster analysis
algorithms, and the solution of total least squares problems.

A previous special issue on this area featured papers on multidimensional
scaling, an application to web search engines, an algorithm for seemingly
unrelated regression models, an error measurement model for motion analysis,
and a survey on alternating least squares problems. These papers left the
impression that the overlap between matrix computations and statistics is a
fertile area of research.

Thus we propose a second special issue on matrix computations and statistics
The editors would like to receive papers on any of the topics listed above
and also topics such as latent semantic indexing, structured total least
squares, cluster analysis, complete orthogonal decompositions, data compression,
linear discriminant analysis, dimension reduction/feature extraction, and
applications of statistical matrix computing to other scientific disciplines.

The editors for this special issue will be

Jesse L. Barlow
Department of Computer Science and Engineering
The Pennsylvania State University
University Park, PA 16802-6106

Patrick J.F. Groenen
Econometric Institute
Erasmus University Rotterdam
Room H11.23
P.O. Box 1738
3000 DR Rotterdam, The Netherlands

Haesun Park
4-192 EE/CS
Department of Computer Science and Engineering
University of Minnesota
Minneapolis, MN 55455

Hongyuan Zha
Department of Computer Science and Engineering
The Pennsylvania State University
University Park, PA 16802-6106

The deadline for submission to this special issue is December 1, 2003.
Manuscripts submitted to this special issue will be refereed according to
standard procedures for Computational Statistics and Data Analysis.


From: Hans Schneider <>
Date: Tue, 27 May 2003 16:51:30 -0500 (CDT)
Subject: Special Issue of LAA on Matrices and Mathematical Biology

Special issue on Matrices and Mathematical Biology

Second call for papers
Submission deadline extended to 30 November 2003

In the last decade the field of mathematical biology has expanded very
rapidly. Biological research furnishes both data on and insight into the
workings of biological systems. However, qualitative and quantitative
modelling and simulation are still far from allowing current knowledge to
be organized into a well-understood structure. Further, the diversity
present in mathematical biology, coupled with the absence of a single
unifying approach, has inspired the formation of entirely new scientific
disciplines such as bioinformatics.

Theoretical research activity in mathematical biology is
naturally of an interdisciplinary character. It involves
mathematical and statistical investigations, sometimes in
combination with techniques originating from the computational
sciences. In many of these approaches, linear algebra is key to
solving the mathematical problems which arise. For instance, in
some population models, the asymptotic rate of increase of the
population turns out to be the spectral radius of a certain
matrix associated with the population, while the other
eigenvalues also yield information on the evolution of the
population's structure. Conversely, problems in mathematical
biology can enrich linear algebra. For example, in attempting to
measure the influence of a single matrix entry on a simple
eigenvalue, linear algebraists frequently employ the derivative
of that eigenvalue with respect to the entry. However, some
biologists have proposed the use of the elasticity, or a
logarithmic derivative, of an eigenvalue with respect to a matrix
entry in order to measure the effect on that eigenvalue of
perturbing a matrix entry. Thus linear algebraists are challenged
to deepen and develop the understanding of the ways in which the
effects of changes in the ecological conditions on the
populations can be measured through further theoretical

A recent book by Caswell on matrix population models makes extensive use
of linear algebraic techniques. Quoting from the introduction to that
book: "Matrix population models -- carefully constructed, correctly
analyzed, and properly interpreted - provide a theoretical basis for
population models... A goal of this book is to raise the bar of what
constitutes rigorous analysis in population models.... The work of the
population biologist is too important to settle for less." But Caswell's
call for careful mathematical construction and analysis applies to areas
beyond the subject of population models; clearly a rigorous approach would
benefit all areas of interaction between biology and mathematics.

The Special Issue of LAA dedicated to Matrices and Mathematical Biology is
intended to both foster and accelerate cross fertilization between those
working primarily in linear algebra and those working primarily in
mathematical biology. The editors hope that such an issue of LAA will be
of benefit to both fields.

This special issue will be open for all submissions containing new and
meaningful results that advance interaction between linear algebra and
mathematical biology. The editors welcome submissions in which linear
algebraic methods play an important role for novel approaches to problems
arising in mathematical biology, or in which investigations in
mathematical biology motivate new tools and problems in linear algebra.
Survey papers which discuss specific areas involving the interaction
between biology and linear algebra, particularly where such interaction
has been successful, are also very welcome.

Areas and topics of interest for the special issue include, but are not
limited to:

metabolistic pathways
statistical data analysis
linear algebra problems in graph partitioning
matrix population models
model discrimination in biokinetics
linear algebra problems in network analysis and synchronization
subspace oriented eigenvalue problems
aggregation/disaggregation or related techniques
hidden Markov models
epidemic models
modelling phylogenetic trees

All papers submitted must meet the publication standards of Linear Algebra
and its Applications and will be refereed in the usual way. They should be
submitted to one of the special editors of this issue listed below by 30
November 2003.

Michael Dellnitz
Department of Mathematics and Computer Science
University of Paderborn
D-33095 Paderborn

Steve Kirkland
Department of Mathematics and Statistics
University of Regina
Regina, Saskatchewan
S4S 0A2

Michael Neumann
Department of Mathematics
University of Connecticut
Storrs, Connecticut O6269-3OO9

Christof Schuette
Department of Mathematics & Computer Science
Numerical Mathematics/Scientific Computing
Free University Berlin
Arnimallee 2-6
D-14195 Berlin


From: J. Numer. Math. <>
Date: Mon, 26 May 2003 16:26:00 +0400
Subject: Contents, Journal of Numerical Mathematics

Vol.11, No.2, 2003, pp.75-177


Regularity estimates for elliptic boundary value problems
with smooth data on polygonal domains
C.Bacuta, J.H.Bramble, and J.Xu

Duality-based adaptivity in the hp-finite element method
V.Heuveline and R.Rannacher

Coercive combined field integral equations

Data-sparse elliptic operator inverse based on
explicit approximation to the Green function

Improved discretization error estimates
for first-order system least squares
T.Manteuffel, S.McCormick, and C.Pflaum


From: ScienceDirect <>
Date: Fri, 30 May 2003 08:33:06 -0400 (EDT)
Subject: Contents, Linear Algebra and its Applications

Linear Algebra and its Applications Volume 368, Pages 1-388 (15 July 2003)

An SVD-like matrix decomposition and its applications, Pages 1-24
Hongguo Xu

Completions of partial P-matrices with acyclic or non-acyclic associated graph,
Pages 25-51
C. Jordan, J. R. Torregrosa and A. M. Urbano

Existence and construction of nonnegative matrices with complex spectrum,
Pages 53-69
Oscar Rojo and Ricardo L. Soto

Inequalities for numerical invariants of sets of matrices, Pages 71-81
Jairo Bochi

On the positive definite solutions of the matrix equations Xs+/-ATX-tA=In,
Pages 83-97
Xin-Guo Liu and Hua Gao

Some determinantal inequalities for Hadamard product of matrices, Pages 99-106
Shencan Chen

The number of nonconstant invariant polynomials of matrices with several
prescribed blocks, Pages 107-116
Gloria Cravo and Fernando C. Silva

Enumeration of orbits on cycles for linear and affine groups, Pages 117-127
Daniele A. Gewurz

Null spaces of correlation matrices, Pages 129-157
Wayne Barrett and Stephen Pierce

Total dilations, Pages 159-169
Jean-Christophe Bourin

The doubly graded matrix cone and Ferrers matrices, Pages 171-190
Geir Dahl

On semigroups of normal matrices, Pages 191-195
Bojana Zalar

The dynamic feedback equivalence over principal ideal domains, Pages 197-208
Jose A. Hermida-Alonso and M. T. Trobajo

The edge-isoperimetric problem on the 600-vertex regular solid, Pages 209-228
L. H. Harper and D. Dreier

Additive mappings on von Neumann algebras preserving absolute values,
Pages 229-241
M. Radjabalipour

Lattices generated by orbits of subspaces under finite singular unitary group
and its characteristic polynomials, Pages 243-268
You Gao

An improved upper bound for Laplacian graph eigenvalues, Pages 269-278
Kinkar ch. Das

A Schur complement approach to a general extrapolation algorithm, Pages 279-301
C. Brezinski and M. Redivo Zaglia

Positive definite Hankel matrices of minimal condition, Pages 303-314
J. M. Varah

Partitioning the edge set of a bipartite graph into chain packings: complexity
of some variations, Pages 315-327
D. de Werra

Effect of linear perturbation on spectra of matrices, Pages 329-342
R. Alam and S. Bora

The continuous-time Rayleigh quotient flow on the sphere, Pages 343-357
R. Mahony and P. -A. Absil

Finite Blaschke products of contractions, Pages 359-370
Hwa-Long Gau and Pei Yuan Wu

Asymptotic similarity-preserving linear maps on , Pages 371-378
Guoxing Ji

On the Laplacian spectral radius of a tree, Pages 379-385
Ji-Ming Guo


From: ScienceDirect <>
Date: Fri, 30 May 2003 08:33:06 -0400 (EDT)
Subject: Contents, Nonliner Analysis

Nonlinear Analysis Volume 54, Issue 4, Pages 591-799 (August 2003)

Regularity of minimizers of vectorial integrals with p-q growth, Pages 591-616
Giovanni Cupini, Marcello Guidorzi and Elvira Mascolo

On some anisotropic reaction-diffusion systems with L1-data modeling the
propagation of an epidemic disease, Pages 617-636
Mostafa Bendahmane, Michel Langlais and Mazen Saad

Multiple solutions of Neumann problem for elliptic equations, Pages 637-650
Chun-Lei Tang

Some remarks on a three critical points theorem, Pages 651-665
Gabriele Bonanno

On the convergence of solutions of multivalued parabolic equations and
applications, Pages 667-682
Z. Denkowski, S. Migorski and N. S. Papageorgiou

Microlocal analysis in nonlinear thermoelasticity, Pages 683-705
Ya-Guang Wang

On the solution sets of differential inclusions and the periodic problem in
Banach spaces, Pages 707-754
Ralf Bader and Wojciech Kryszewski

On an Airy function of two variables, Pages 755-772
Tadashi Miyamoto

Weak asymptotics method and the interaction of infinitely narrow
[delta]-solitons, Pages 773-799
V. G. Danilov and G. A. Omel'yanov


End of NA Digest