NA Digest Sunday, August 25, 1996 Volume 96 : Issue 32

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

Submissions for NA Digest:

Mail to

Information about NA-NET:

Mail to

URL for the World Wide Web: -------------------------------------------------------

From: Ken Jackson <>
Date: Tue, 20 Aug 1996 13:44:53 -0400
Subject: Tom Hull

I regret to inform you that Professor Tom Hull of the Computer Science
Department, University of Toronto, passed away on Thursday, August 15,
of a massive heart attack. As many of you may know, Tom had heart
problems in recent years. Although this slowed him down, it did not
prevent him from working actively and enthusiastically on several
research projects right up until the time of his death.

Tom is survived by his wife, Kae, and two daughters, Diane and Nancy.
Many of us will always remember him as a model gentleman and scholar.

If desired, remembrances may be made to the Heart and Stroke Foundation
of Ontario, 477 Mount Pleasant Rd., 4th Floor, Toronto, Ontario,
Canada, M4S 2L9.


From: Nick Higham <>
Date: Thu, 22 Aug 1996 11:16:42 +0100
Subject: Computer Pioneers Book

I came across the following book of biographies, which includes
several numerical analysts among the 240 or so entries.
There are entries of a page or more for Fritz Bauer, George Forsythe,
Leslie Fox, Magnus Hestenes and Jim Wilkinson, as well as a number of
shorter entries of other familiar names from the world of numerical

editor = "J. A. N. Lee",
title = "Computer Pioneers",
publisher = "IEEE Computer Society Press",
address = "Los Alamitos, California",
year = 1995,
pages = "xiii+816",
isbn = "0-8186-6357-X"

--- Nick Higham


From: Harvey Greenberg <>
Date: Mon, 19 Aug 1996 19:06:14 -0600 (MDT)
Subject: Math Programming Glossary

The Mathematical Programming Glossary is official. Please feel free to
put your own links to it at

(I continue to accept changes.)


From: Michael Todd <miketodd@CS.Cornell.EDU>
Date: Tue, 20 Aug 1996 14:08:23 -0400
Subject: Mathematics Subject Classification for Optimization

The Mathematical Programming Society has set up a committee consisting
of Jose Mario Martinez (, Lex Schrijver
(, and Mike Todd (miketodd@CS.Cornell.EDU), chair,
to provide input to Mathematical Reviews and Zentralblatt fuer Mathematik
on their proposed update of the 1991 Mathematics Subject Classification.
It is not envisioned that this will be a major update, but it needs
to incorporate new areas of research and possibly reorganize
appropriately existing areas. The committee expects to concentrate
its attention on the organization of 90CXX, mathematical programming,
but may also make suggestions on other parts of the classification,
such as 65KXX, 68QXX, 05DXX, and 90BXX.

The existing classification can be found on the world wide web at
URL, or copies may be obtained by
e-mail or regular mail from the committee members.

We welcome suggestions from the mathematical programming community,
which can be sent by e-mail to any or all of the committee members,
or by regular mail to the address below. We would appreciate receiving
input before or during the International Symposium on Mathematical
Programming to be held in Lausanne, Switzerland, in August 1997.

Michael J. Todd
School of Operations Research and Industrial Engineering
Rhodes Hall
Cornell University
Ithaca, NY 14853-3801


From: John Tucker <>
Date: Thu, 22 Aug 96 11:56:00 EST
Subject: Department Chairs Colloquium

Department Chairs Colloquium: Preserving Strength While Meeting Challenges
October 11-12, 1996; Washington, DC
Board on Mathematical Sciences; National Research Council

How to meet high expectations with constrained or diminishing resources.
What have others done? What has worked elsewhere? Where is there guidance
or help? This year's Colloquium spotlights beneficial actions and
successful pathways to strengthening a departments performance and
enhancing its value.
REGISTRATION is $175. Each paid registrant will get the recently published BMS
workshop summary
report "Actions for the Mathematical Sciences in the Changed Environment," and
the BMS report
"Educating Mathematical Scientists." Space is limited and advance registration
is required. To
get more information, Call: 202-334-2421, or Email:
LOCATION: Hyatt Regency Washington on Capitol Hill in Washington, DC (400 New
Jersey Ave.,
NW, Washington, DC). Call 800-233-1234; mention the Board on Mathematical
Sciences Colloquium
on October 11- 12. Rooms are first-come, first-served, and must be reserved by
September 9.
Friday, October 11
10:00 Concurrent Workshops: Workshop for New and Future Chairs, Douglas
Lind, University of Washington; Teacher Preparation, James Lightbourne
(organizer), NSF; AP Statistics: Implications for Post-Secondary
Statistics, Jeffrey Witmer, Oberlin College (organized by CATS); The
Increasing Use of Adjuncts, Joseph Glover, University of Florida
1:15 Keynote Address, Leading Washington, DC science policy figure (to be
2:15 The View from Several Departments: Peter Sarnak, Princeton University;
Dean Isaacson, Iowa State University; Calvin Moore, University of California-
3:45 Actions for the Mathematical Sciences in the Changed Environment, BMS
Chair Avner Friedman, Institute for Mathematics and Its Applications,
University of Minnesota
4:30 Federal Research and Education Programs, Federal Program Managers
Saturday, October 12
8:00 am AMS Task Force on Excellence in Mathematics Scholarship, Task
Force Chair Morton Lowengrub, Dean, Indiana University
8:45 The First Course of a Modern Interdisciplinary Statistics Education,
Garfield, University of Minnesota (Organized by CATS)
9:15 Successful Outreach Activities, Anil Nerode, Cornell University; Robert
Olin, Virginia
Polytechnic Institute and State University; and H. Thomas Banks, North
Carolina State University.
10:45 Concurrent Workshops: Exemplary Mathematics Programs for Women ,
AWM President Chuu-Lian Terng, Northeastern University (organizer), Electronic
Publishing, SIAM Executive Director James Crowley (organizer); A Professional
Masters Degree Program: The Clemson Experience, Robert Fennell, Clemson
University; 21st Century Mathematical Sciences Instruction, John Jungck,
Beloit College
1:30 Technology in the Classroom and Laboratory, David Smith, Duke
2:15 Mathematics Across the Curriculum, James Lightbourne, NSF (organizer)
3:45 An Overview of the MAA Report Quantitative Reasoning for College
Graduates: A Complement to the Standards, Robert Bernhardt, East Carolina
University, and Jimmy Solomon, Georgia Southern University
4:30 JPBM Task Force on the Enhancement of Educational Activities of
Mathematics Faculty, Task Force Chair Alan Schoenfeld, University of


From: Trini Flores <>
Date: Fri, 23 Aug 96 15:06:54 EST
Subject: SIAM Conference on Parallel Processing for Scientific Computing

Eighth SIAM Conference on Parallel Processing for Scientific Computing
March 14-17, 1997
Hyatt Regency Minneapolis
Minneapolis, Minnesota

Deadline for submission of minisymposium proposals: September 16, 1996
Deadline for submission of contributed abstracts: October 1, 1996

For more information, point your Web browser to:


From: Trini Flores <>
Date: Fri, 23 Aug 96 15:06:54 EST
Subject: SIAM Conference on Mathematical Aspects of Materials Science

Second SIAM Conference on Mathematical Aspects of Materials Science
May 12-14, 1997
Holiday Inn Select
Philadelphia, PA

Deadline for submission of minisymposium proposals: September 16, 1996
Deadline for submission of contributed abstracts: October 15, 1996

For more information, point your Web browser to

From: Gerhard Opfer <>
Date: Mon, 19 Aug 1996 15:30:25 +0200 (MET DST)
Subject: Colloquium to Honor Lothar Collatz

The Institute of Applied Mathematics of the University of Hamburg
will host another

Colloquium on Applications of Mathematics
on July 4 and 5, 1997
in Memoriam of Lothar Collatz

The idea is to revitalize the formerly successful colloquia with the same
title which were held in honor of Lothar Collatz. Everyone is welcome to
attend. A presentation of a lecture in the above mentioned theme is encouraged.
The former meetings consisted of parallel sessions and some main lectures.

The following persons have agreed to present a main lecture:

Helmut Pottmann, Vienna, Austria
Mike Powell, Cambridge, England
Peter Rentrop, Darmstadt, Germany
Jochen Werner, Goettingen, Germany

There will be a dinner in the evening of July 4, 1997.

It is intended to find some support for persons from East and South East Europe,
Asia and Central and Southern America.

Those who are interested to come or to receive further information
should send an e-mail message to

indicating their postal address.

The organizers
Klaus Glasshoff Uwe Grothkopf Hans Joachim Oberle Gerhard Opfer


From: Jeanne Butler <>
Date: Tue, 20 Aug 1996 11:39:48 -0500
Subject: Workshop on Parallel Programming on the IBM RS/6000 SP

Workshop on Parallel Programming on the IBM RS/6000 SP
Sunday September 29 - Friday October 4, 1996

Cornell Theory Center
Cornell University
Ithaca, NY

** Space is still available in this workshop **

The Cornell Theory Center (CTC), a nationally funded high-performance
computing and communications center, is offering a one-week workshop,
including lectures and laboratory sessions, on parallel programming
for the IBM SP. CTC's IBM SP, which consists of 512 RISC processors
connected by a high-performance switch, is the largest of its kind in
the world. The SP programming model is distributed memory.

This workshop will offer sessions on the following topics:

- CTC Essentials:
What programmers need to know about CTC's IBM SP system
configuration and administration.

- Using CTC's IBM SP Effectively:
How to design and code programs that make the best use of the
IBM SP's features.

- The Message Passing Interface (MPI) Standard Library:
How to write parallel programs using this message passing

- Parallelization Case Study using MPI and
High Performance Fortran (HPF):
A step-by-step presentation of converting a serial program to
a parallel program, and tuning its performance.

All topics will be presented using a mix of lectures and programming
exercises, giving participants hands-on experience with parallel

A full description of the topics, as well as the preliminary agenda
and registration form, is available online at:

Registrations will continue to be accepted on a space available basis,
until September 3, 1996.


From: Richard Franke <>
Date: Tue, 20 Aug 1996 17:19:46 -0700 (PDT)
Subject: Meeting on Radial Basis Functions

Dear Colleague:

As you know radial basis functions are becoming widely used in neural
networks, approximations, interpolation, partial and integral
differential equations, etc. Profs. Richard Franke, Wendell Nuss,
Rolland Hardy, Supachai Sirayanone and I have been encouraged by
Robert Vichenevtsky to organize a conference on "The theory and
applications of radial basis functions", under the auspices of IMACS.
The proposed time for holding the conference is the week of August 18,
1997 at the Asilomar Conference Center.

The Asilomar Conference Center is located on the tip of the Monterey
Peninsula within a short walking distance from the beach. This center
offers conference rooms, with guest rooms and full dining services
under the American plan at a very reasonable cost. It is within a
short distance of many favorite tourist spots such as the Monterey Bay
Aquarium, Carmel-by-the-Sea, the Big Sur coastline, and Point Lobos.
Please remember summer is peak tourist time.

To reserve the Asilomar Conference Center, we require information as
soon as possible regarding the number of persons who are interested in
attending, and especially those that will definitely attend. We need
a critical mass of attendees whose registration fees will be used to
cover conference room rentals and coffee and refreshment costs. If
enough persons participate, the registration fees can be kept below
$170. You can also reserve a room at the center, or can stay
elsewhere, although there is an additional charge of $7 per day for
participants not staying at the center.

It would helpful to know whether you prefer sessions from 8AM to 12PM,
and have the rest of the day to enjoy the Monterey area, or prefer to
have longer sessions, with lunch and coffee breaks and end the
conference in a fewer number of days.

Please contact either:
Prof. Richard Franke Dr. Edward J. Kansa
Mathematics Dept. Mail Stop L-200
Naval Postgraduate School Lawrence Livermore Nat. Lab.
Monterey, CA 93943-5216 Livermore,CA 94551-9900

Please forward this message to any colleagues who might be interested
in participating in this conference.

Best wishes

Richard Franke, Rolland Hardy, Wendell Nuss, Supachai Sirayanone and
Ed Kansa


From: Michael Olesen <>
Date: Wed, 21 Aug 1996 12:39:25 -0500 (CDT)
Subject: Workshop on Computational Issues in Drug Design

IMA-MSI Workshop
on Mathematical and
Computational Issues in Drug Design
April 14-18, 1997

Organizing committee:
W. Jeffrey Howe, Upjohn Laboratories, chair
Jeffrey M. Blaney, Chiron Corporation
Richard Damkoehler, Washington University
Anton J. Hopfinger, University of Illinois at Chicago
Donald G. Truhlar, University of Minnesota


Drug research and discovery are of critical importance in human
health care and are becoming increasingly expensive, while the
need for new drugs is also increasing. Computational
approaches for drug lead discovery and optimization have proven
successful in many recent research programs. These methods
have grown in their effectiveness not only because of improved
understanding of the basic science -- the biological events and
molecular interactions that define a target for therapeutic
intervention -- but also because of advances in algorithms,
representations, and mathematical procedures for studying such

This workshop will bring together top researchers in computer-
aided drug discovery, computational chemistry, mathematics, and
computer science to present state-of-the-art research in both
the science and the underlying mathematics, and to identify new
problems for possible collaborations. General subject areas of
the workshop will include receptor-based applications such as
binding energy approximations, molecular docking, and de novo
design; non-receptor-based applications such as molecular
similarity, conformational analysis, and structural diversity;
molecular dynamics simulations and protein folding simulations;
plus related issues such as drug delivery modelling and
scientific visualization. The workshop will also focus on the
mathematical procedures and algorithms upon which the
scientific applications are based. These include graph theory
and topology, non-linear multidimensional optimization, the
processing and representation of information obtained from
simulation studies, global optimization and search strategies,
plus performance enhancement through parallel computing

Further information about this conference will be available at If you wish
to be on the mailing list for this conference please send your
name and e-mail address to

Michael J. Olesen
Research Programs Administrator
University of Minnesota
Supercomputer Institute
1200 Washington Avenue South
Minneapolis, MN 55415

office: (612) 624-1356
fax: (612) 624-9565


From: Michael Olesen <>
Date: Wed, 21 Aug 1996 12:46:06 -0500 (CDT)
Subject: Confereence on Modeling in Biochemical Engineering

Modeling in Biochemical Engineering
October 11-12, 1996
Minneapolis, Minnesota


Doraiswami Ramkrishna, Purdue University
Friedrich Srienc, University of Minnesota


National Science Foundation
Biological Process Technology Institute, University of Minnesota
Supercomputer Institute, University of Minnesota
Chemical Engineering & Materials Science Department,
University of Minnesota


This Conference/Workshop will bring together a select group of biochemical
engineers and biologists to discuss in depth the role mathematical modeling is
playing in the area of biochemical engineering and how its contributions to
biotechnology can be enhanced in the future. The role of mathematical modeling
in firming up the foundation of biochemical engineering will be reevaluated.

Additional information is available at

Michael J. Olesen
Research Programs Administrator
University of Minnesota
Supercomputer Institute
1200 Washington Avenue South
Minneapolis, MN 55415

office: (612) 624-1356
fax: (612) 624-9565


From: Scott Mitchell <>
Date: Fri, 23 Aug 1996 16:03:54 -0600
Subject: International Meshing Roundtable Registration

Registration and hotel information is now available for the 5th
International Meshing Roundtable. The Roundtable is October 10-11,
1996, in Pittsburgh.

The early Registration deadline is September 20.
The hotel reservation deadline is September 19.

Past participants and those previously requesting information have
been snail-mailed a registration packet.

You may obtain a registration form online via the web,
You will need to print this out and snail-mail it in with a check or
money order (sorry, Sandia National Labs doesn't accept credit cards).

You may also request a paper packet by emailing Tammy Wilson,

Scott Mitchell
Chair, 5th International Meshing Roundtable


From: Jeremy Du Croz <>
Date: Thu, 22 Aug 1996 17:51:36 +0000 (BST)
Subject: Positions at NAG Ltd, Oxford, UK

NAG produces high quality software for scientific computing, which is used
throughout the world, and is seeking to fill three posts at its headquarters in

Numerical Analyst/Software Developer

to work on the development of software for the NAG numerical libraries (in
Fortran 77, Fortran 90 or C). Expertise in ordinary or partial differential
equations would be an advantage, and initially the work will have a strong
emphasis on the parallelization of algorithms for shared-memory systems. The
ideal candidate is likely to have a good honours degree in a mathematical,
scientific or engineering subject, and experience of numerical computing,
including some in parallel computing. This will be a permanent appointment.

Parallel Programmer/Analyst

to work on the development of parallel numerical library software, primarily for
distributed-memory systems, but also for shared-memory systems. Much of the work
will be undertaken as part of a major product funded by the European Commission,
in collaboration with partners in the UK, Denmark, France and Italy. The ideal
candidate is likely to have a good honours degree in a mathematical, scientific
or engineering subject, and experience of developing parallel numerical
software, preferably in Fortran. This will be a fixed term 2-year appointment.

Implementation/Certification Programmer

NAG uses the term implementation to describe the process of adapting, compiling
and testing software for each target computer system. Each completed version is
then independently certified before release to customers. This role gives the
opportunity to work with a variety of NAG products on a range of systems
including powerful supercomputers, Unix workstations and PCs. If you have a
background in scientific programming (Fortran 77, Fortran 90 or C), enjoy
working in a disciplined manner and paying attention to detail and want to gain
experience of today's technical computing environments then you should apply for
this post. A good level of mathematical awareness is desirable, but numerical
analysis qualifications are not necessary. This will be a permanent appointment.

The posts will be on NAG Administrative, Commercial and Technical Salary Grade
2 to 3 (17,732 to 25,003 pounds p.a.), with generous pension arrangements and
six weeks holiday per year. All the posts will be based in NAG Ltd, Oxford.
Standard terms and conditions for NAG Technical Staff will apply.

For further details and an application form please contact (indicating the
post(s) of interest):

The Administrator, The Numerical Algorithms Group Ltd,
Wilkinson House, Jordan Hill Road, Oxford, UK, OX2 8DR.
Tel: +44 (0)1865 511245 Fax: +44 (0)1865 310139
Email: WWW:

Closing date for applications: 13 September 1996


From: Kendall Atkinson <>
Date: Fri, 23 Aug 1996 20:21:13 -0500 (CDT)
Subject: Positions at The University of Iowa

The Department of Mathematics of The University of Iowa invites
applications for the following positions.

1) Tenure-track beginning or early assistant professorship, starting
in August 1997, in the broadly interpreted area of computational
mathematics. Expertise is desired in areas such as numerical parallel
computing, computer graphics, or computational geometry. Extraordinary
candidates at higher rank may be considered. Selection will be based on
evidence of outstanding research accomplishments or potential, and
teaching ability. A Ph.D. or equivalent training is required.

2) Pending availability of funds, one or more visiting positions for
all or part of the 1997-98 academic year. Selection will be based on
research expertise and teaching ability. Preference will be given to
applicants whose scholarly activity is of particular interest to members
of the current faculty.

Women and minority candidates are especially urged to apply for
the above positions. The University of Iowa welcomes the employment
of professional couples on its faculty and staff, permits the
appointment of faculty couples within the same department, and
permits the sharing of a single appointment by a faculty couple.

Formal screening will begin December 15, 1996; and applications will
be accepted until the positions are filled. To apply, send a complete
vita and have three letters of recommendation sent to:

Professor Bor-Luh Lin, Chair
Department of Mathematics
The University of Iowa
Iowa City, Iowa 52242

For additional information on the University of Iowa, check the WWW site
For the Dept of Mathematics, check the WWW site

The University of Iowa is an Equal Employment Opportunity and
Affirmative Action Employer.


From: Wayne Mastin <>
Date: Wed, 21 Aug 1996 09:57:02 -0500
Subject: Positions at DoD MSRCs

University Positions in Computational Science & Computer Science at DoD MSRCs

Programming Environment and Training (PET)

Research Scientists/Engineers in DoD Computational Technology Areas

Applications are invited for several university Research Engineer/Scientist
positions in connection with the Programming Environment and Training (PET)
support of the DoD High Performance Computing (HPC) Major Shared Resource
Centers (MSRCs).

The DoD High Performance Computing Modernization Program has established four
DoD MSRCs to provide HPC capability throughout the DoD R&D community, providing
top-level computing facilities at the MSRCs together with a commensurate level
of PET support through a team of major universities in HPC research.

The four MSRCs are the following:
Army Corps of Engineers Waterways Experiment Station (CEWES), Vicksburg MS
Air Force Aeronautical Systems Center (ASC), Wright-Patterson AFB OH
Naval Oceanographic Office (NAVO), Stennis Space Center MS
Army Research Laboratory (ARL), Aberdeen Proving Grounds MD

The PET Team of universities (led at the CEWES MSRC by the Center
for Computational Field Simulation at Mississippi State University,
at the ASC MSRC by the Ohio Supercomputer Center at The Ohio State
University, and at the ARL MSRC by Georgia Tech) includes the following:
Center for Computational Field Simulation at Mississippi State University
Ohio Supercomputer Center at The Ohio State University
College of Computing at Georgia Tech
National Center for Supercomputing Applications (NCSA) at the University of
Center for Research in Parallel Computation (CRPC) headquartered at Rice
University, and including Syracuse University, California Institute of
Technology, University of Tennessee
Texas Institute for Computational and Applied Mathematics (TICAM) at the
University of Texas at Austin
Jackson State University
Central State University
Howard University

Positions are in the DoD Computational Technology Areas:
Computational Fluid Dynamics (Mississippi State)
Computational Structural Mechanics (Illinois)
Computational Chemistry and Materials Science (Ohio State)
Computational Electromagnetics and Acoustics (Ohio State)
Climate/Weather/Ocean Modeling (Ohio State)
Signal/Image Processing (Ohio State)
Forces Modeling and Simulation/C4I (Syracuse)
Environmental Quality Modeling (Texas)
Computational Electronics and Nano-electronics (Illinois)
Programming Tools/Emerging Systems (Rice)
Scientific Visualization (Illinois)
Information Technology (Illinois)

The successful applicant will work on-site at a MSRC served by the PET Team
(CEWES, ASC and ARL) but will be employed by a university on the PET team, and
will also work directly with corresponding faculty at the university.
Responsibilities will include maintaining state-of-the-art awareness of
emerging relevant technology, keeping MSRC users up to date on such technology
advances, training MSRC users in this technology through short courses and
graduate courses, and assisting MSRC users in applications code development in
emerging programming environments. Strong demonstrated ability and experience
with code development/application and technology transfer is required.
Particular emphasis will be placed on combined expertise in physical and
computer/computational science.

A PhD, or equivalent experience, in a related field is required, and the level
of closely related experience will be a major consideration. Strong
presentation and interpersonal skills are required. Eligibility for a DoD
SECRET security clearance is required. Salary is competitive and commensurate
with degree and experience.

This is an excellent opportunity to work in a cross-disciplinary mode with a
team of university and DoD researchers on state-of-the-art HPC challenges.

Interested persons should submit a complete resume with details of relevant
interests/expertise/experience, indicating the technology area of expertise,
along with names and addresses of at least three references to

Dr. Joe F. Thompson
NSF Engineering Research Center for Computational Field Simulation
Mississippi State University
P. O. Drawer 6176
Mississippi State, MS 39762

Applications will be routed to the appropriate university. Positions are open
now. Applications will be accepted until the positions are filled. These
universities are affirmative action, equal opportunity employers. Women and
minorities are encouraged to apply.


From: David Silvester <>
Date: Thu, 22 Aug 96 15:52:13 BST
Subject: Postdoctoral Position at UMIST

Postdoctoral research assistant postition at UMIST.

Applications are invited for a postdoctoral research assistantship
for a project on the ``Analysis of numerical methods for incompressible
fluid dynamics''. Candidates should have a background in the numerical
analysis of partial differential equations, and have a Ph.D or expect
to have submitted a Ph.D thesis in a mathematical discipline before the
start of the project.

The post is funded by the EPSRC and is a joint project between Dr. David
Silvester at UMIST and Dr. Andy Wathen at the University of Oxford. The
project will run for three years from 1st October 1996 (negotiable), and
the RA will transfer from Manchester to Oxford after the first eighteen
months. Informal enquiries by email to
or to are welcomed.

Letters of application together with two copies of a CV and the names
and addresses of two referees should be sent to
Dr. David Silvester, Mathematics Department, UMIST, PO Box 88,
Manchester M60 1QD, United Kingdom
to arrive not later than 30 September 1996.


From: Richard Brualdi <>
Date: Mon, 19 Aug 1996 13:41:17 -0500 (CDT)
Subject: Revised Contents, Linear Algebra and its Applications

Revised Contents Volume 245

Jin-Hsien Wang (Kaohsiung, Taiwan, Republic of China)
Product of Invertible Operators of Quadratic Type 1

Stewart W. Neufeld (Winnipeg, Canada)
A Diameter Bound on the Exponent of a Primitive Directed Graph 27

Ral Andrade and Alicia Labra (Santiago, Chile)
On a Class of Baric Algebras 49

I. Gohberg (Tel-Aviv, Israel), M. A. Kaashoek, and J. Kos (Amsterdam, The
Netherlands) The Asymptotic Behavior of the Singular Values of Matrix Powers
and Applications 55

Naum Krupnik (Ramat-Gan, Israel) and Steffen Roch (Leipzig, Germany)
On Invertibility Symbols in Banach Algebras 77

J. Rudolph (Stuttgart, Germany)
Duality in Time-Varying Linear Systems: A Module Theoretic Approach 83

J. W. Hoffmann (Kaiserslautern, Germany) and P. A. Fuhrmann (Beer Sheva, Israel)
On Balanced Realizations of Bounded Real and Positive Real Functions 107

Zhi-hao Cao, Jin-jun Xie (Shanghai, People's Republic of China), and Ren-Cang
Li (Berkeley, California) A Sharp Version of Kahan's Theorem on Clustered
Eigenvalues 147

Kirill A. Kopotun (Edmonton, Alberta, Canada)
A Note on the Convexity of the Sum of Subpermanents 157

Keith G. Woodgate (London, United Kingdom)
Least-Squares Solution of F = PG Over Positive Semidefinite Symmetric P 171

Sambhavi Lakshminarayanan (New York, New York) and R. Chandrasekaran
(Richardson, Texas) Tessellation and g-Tessellation of Circulants, Q6, and
Qt6 191

Ettore Fornasini and Maria Elena Valcher (Padova, Italy)
On the Spectral and Combinatorial Structure of 2D Positive Systems

Patrick J. Rabier and Werner C. Rheinboldt (Pittsburgh, Pennsylvania)
Classical and Generalized Solutions of Time-Dependent Linear
Differential-Algebraic Equations 259

M. Koppinen (Turku, Finland)
Three Automorphism Theorems for Triangular Matrix Algebras 295

D. J. Hartfiel (College Station, Texas)
Similitudes and the I1-Norm 305

Hern n Abeledo (Washington, D.C.) and Yosef Blum (Haifa, Israel)
Stable Matchings and Linear Programming 321

Nicolau C. Saldanha and Carlos Tomei (Rio de Janeiro, Brazil)
The Accumulated Distribution of Quadratic Forms on the Sphere 335

J. A. Dias de Silva (Lisboa, Portual)
New Conditions for Equality of Decomposable Symmetrized Tensors 353

Author Index 373


From: SIAM <>
Date: Thu, 22 Aug 96 09:32:08 EST
Subject: Contents, SIAM Matrix Analysis

SIAM Journal on Matrix Analysis and Applications
October 1996, Volume 17, Number 4

Minimal Residual Method Stronger than Polynomial Preconditioning
V. Faber, W. Joubert, E. Knill, and T. Manteuffel

Stability Theory for Linear Inequality Systems
M. A. Goberna, M. A. Lopez, and M. Todorov

A Characterization and Representation of the Drazin Inverse
Wei Yimin

Computing the Smallest Eigenvalue of an M-Matrix
Xue Jungong

On Linear Least-Squares Problems with Diagonally Dominant Weight Matrices
Anders Forsgren

Deflation Techniques for an Implicitly Restarted Arnoldi Iteration
R. B. Lehoucq and D. C. Sorensen

On the Dynamics of the Linear Process Y(k)=A(k)Y(k-1) with Irreducible Matrices
Marc Artzrouni

Extensions of G-Based Matrix Partial Orders
S. K. Jain, S. K. Mitra, and H. J. Werner

Some Noninterior Continuation Methods for Linear Complementarity Problems
Christian Kanzow

On Tridiagonalizing and Diagonalizing Symmetric Matrices with Repeated
Christian H. Bischof and Xiaobai Sun

An Approximate Minimum Degree Ordering Algorithm
Patrick R. Amestoy, Timothy A. Davis, and Iain S. Duff

On the Solution of a Nonlinear Matrix Equation Arising in Queueing Problems
Dario Bini and Beatrice Meini

Group Invariance and Convex Matrix Analysis
A. S. Lewis

Stabilizing the Generalized Schur Algorithm
S. Chandrasekaran and Ali H. Sayed

Best Available Bounds for Departure from Normality
Steven L. Lee

Generalized Monotone Affine Maps
Jean-Pierre Crouzeix and Siegfried Schaible

Every Normal Toeplitz Matrix is Either of Type I or of Type II
Takashi Ito

Preconditioning Strategies for Hermitian Toeplitz Systems with Nondefinite
Generating Functions
Stefano Serra

Interval P-Matrices
Jiri Rohn and Georg Rex

Inverses of Unipathic M-Matrices
J. J. McDonald, M. Neumann, H. Schneider, and M. J. Tsatsomeros

Normal Toeplitz Matrices
Douglas R. Farenick, Mark Krupnik, Naum Krupnik, and Woo Young Lee

Author Index


End of NA Digest