URL for the World Wide Web:
http://www.netlib.org/na-net/na_home.html
-------------------------------------------------------
From: Jean Claude Berges <Jean-Claude.Berges@cnes.fr>
Date: Thu, 20 Feb 97 17:43:17 +0100
Subject: Query on Sparse Linear Least Squares Problem
Dear NA-Netters,
I have to solve some sparse linear least squares problems;
Min||Ax -b||
where A is a real sparse full rank matrix (m,n) , m>>n
m = 40 000
n = 800
Number of non zero / (m*n) = 0.025
I used already the LSQR algorithm of Ch.C. Paige and M.A.Saunders but,
I am looking for :
-> direct algorithms/ freeware codes like QR factorization,
-> others iteratives algorithms/ freeware codes.
If you have some information or code (Fortran77 or C) for my problem, please
let me know. Any reference would be helpful.
Thanks.
Jean Claude BERGES
French Space Center ( DGA/T/TI/MS/MN)
18,Av. Edouard Belin
31401 TOULOUSE Cedex 04 - FRANCE
E-mail : Jean-Claude.Berges@cst.cnes.fr
------------------------------
From: PARASOL Mailing List <parasol-mail@genias.de>
Date: Fri, 21 Feb 97 11:21 MET
Subject: PARASOL - Parallel Sparse Matrix Solvers
Dear Colleague,
PARASOL is a long term research ESPRIT IV project (Domain 4, Task 4.2)
which started on January 1st, 1996 and will last 3 years. Within the
project, new parallel algorithms will be developed: for the direct
solution of sparse systems of linear equations, for the iterative
solution of such systems based on either multigrid or domain decom-
position, and for their preconditioning. These algorithms will be
available in the public domain.
If you are working in this area and are interested in more information
about PARASOL please have a look at http://www.genias.de/parasol/ or
at our current newsletter http://www.genias.de/parasol/Newsletters.html.
Kind Regards, Lars Kurth
P.S.: To remove your name from this mailing list, please send an empty mail
to "parasol-mail@genias.de" with the subject "unsubscribe". To subscribe
to this mailing list, please send an empty mail to "parasol-mail@genias.de"
with the subject "subscribe".
------------------------------
From: George Miel <miel@CS.UNLV.EDU>
Date: Wed, 19 Feb 1997 14:07:33 -0800
Subject: Seeking Help With High Performance Computing Workshop
The Mechanical Engineering Dept at UNLV is conducting a
two day workshop on computational conductive heat transfer
on March 27-28 sponsored by NSF and others. We are looking
for established experts on High Performance Computing that
can interact with the participants (total of about 30). Their
area of expertise needs not be specifically on heat transfer but
rather on scalable parallel machines as applied to similar
scientific computation. We are able to provide support for
airfare, two hotel nites, and nourishment during the workshop.
Do you know qualified individuals (including yourself) that
might be interested? Time is of the essence as we need to
finalize our plans soon. Interested individuals should
contact me as soon as possible.
George Miel
Dept. of Mathematical Sciences
University of Nevada at Las Vegas
miel@cs.unlv.edu
------------------------------
From: Volker Mehrmann <volker.mehrmann@Mathematik.TU-Chemnitz.DE>
Date: Tue, 18 Feb 1997 11:26:25 MET
Subject: Temporary Change of Address for Volker Mehrmann
Temporary change of address.
> From March 1. to August 31. 1997 I will spend my sabbatical
at the Computer Science Dept. of the Univ. of Victoria.
Please note my coordinates for the period March 1. -- August 31. 1997:
Volker Mehrmann
Dept. of Computer Science
P.O. Box 3055
Victoria, B.C. Canada V8W 3P6
email: mehrmann@csr.uvic.ca
------------------------------
From: Tibor Csendes <csendes@sol.cc.u-szeged.hu>
Date: Sat, 22 Feb 1997 10:43:04 +0100 (MET)
Subject: New Book in Global Optimization
Title: Developments in Global Optimization
Edited by Immanuel M. Bomze, Tibor Csendes, Reiner Horst and Panos M. Pardalos
Publisher: Kluwer Academic Publishers (kluwer.wkap.com)
1997
Summary: In recent years global optimization has found applications in many
interesting areas of science and technology including molecular biology,
chemical equilibrium problems, medical imaging and networks. The collection of
papers in this book indicates the diverse applicability of global optimization.
Furthermore, various algorithmic, theoretical developments and computational
studies are presented.
The volume contains fully referred and selected papers of the Third Workshop on
Global Optimization, Szeged, Hungary, December 10-14, 1995.
Contents:
A. Neumaier: NOP - A Compact Input Format for Nonlinear Optimization Problems,
1-18.
S. Dallwig, A. Neumaier and H. Schichl: GLOPT - A Program for Constrained
Global Optimization, 19-36.
M.N. Vrahatis, D.G. Sotiropoulos and E.C. Triantafyllou: Global Optimization
for Imprecise Problems, 37-54.
D. Ratz: New Results on Gap-Treating Techniques in Extended Interval Newton
Gauss-Seidel Steps for Global Optimization, 55-72.
P.L. De Angelis, P.M. Pardalos and G. Toraldo: Quadratic Programming with Box
Constraints, 73-93.
I. Bomze, M. Pelillo and R. Giacomini: Evolutionary Approach to the Maximum
Clique Problem: Empirical Evidence on a Larger Scale, 95-108.
C. Stephens: Interval and Bounding Hessians, 109-119.
A. Strekalovsky and I. Vasiliev: On Global Search for Non-Convex Optimal
Control Problems, 121-133.
C.J. Price: A Multistart Linkage Algorithm Using First Derivatives, 135-152.
J. Hichert, A. Hoffmann and H.X. Phu: Convergence Speed of an Integral Method
for Computing the Essential Supremum, 153-170.
Z.B. Zabinsky and B.P. Kristinsdottir: Complexity Analysis Integrating Pure
Adaptive Search (PAS) and Pure Random Search (PRS), 171-181.
J.D. Pinter: LGO - A Program System for Continuous and Lipschitz Global
Optimization, 183-197.
Ya.D. Sergeyev: A Method Using Local Tuning for Minimizing Functions with
Lipschitz Derivatives, 199-216.
K.A. Dill, A.T. Phillips and J.B. Rosen: Molecular Structure Prediction by
Global Optimization, 217-234.
A. Pfening and M. Telek: Optimal Renewal Policy for Slowly Degrading Systems,
235-251.
W. Bollweg, H. Kroll and H. Maurer: Numerical Prediction of Crystal Structures
by Simulated Annealing, 253-288.
I. Garcia, P.M. Ortigosa, L.G. Casado, G.T. Herman and S. Matej:
Multidimensional optimization in image reconstruction from projections,
289-299.
K. Holmqvist, A. Migdalas and P.M. Pardalos: Greedy Randomized Adaptive Search
for a Location Problem with Economies of Scale, 301-313.
B. Imreh, F. Friedler, L.T. Fan: An Algorithm for Improving the Bounding
Procedure in Solving Process Network Synthesis by a B&B Method, 315-348.
Audience: All researchers and students working in mathematical programming.
Published in February 1997, xi+348 pp.; hardbound. ISBN 0-7923-3451-4
Additional information: http://www.inf.u-szeged.hu/~globopt
To order the book, you can:
E-mail kluwer@world.std.com.
Fax Kluwer at 617-871-6528.
Phone Kluwer at 617-871-6600.
------------------------------
From: Jerzy Wasniewski <unijw@unidhp1.uni-c.dk>
Date: Sat, 15 Feb 1997 17:38:59 +0100 (MET)
Subject: Fourth European PVM/MPI Users' Group Meeting
The Fourth European PVM/MPI Users' Group Meeting
is organized by
Marian Bubak, Jack Dongarra and Jerzy Wasniewski
in Cracow, POLAND, November 3 - 5, 1997
For more information contact: www: http://www.cyf-kr.edu.pl/pvmpi97
ftp: ftp://ftp.cyf-kr.edu.pl/pvmpi97 or email: pvmpi97@cyf-kr.edu.pl
Best regards,
Jerzy
------------------------------
From: Jerzy Wasniewski <unijw@unidhp1.uni-c.dk>
Date: Sat, 15 Feb 1997 17:39:59 +0100 (MET)
Subject: Hewlett-Packard High Performance Computing Meeting
The Hewlett-Packard High Performance Computing Meeting
is Organized by Marian Bubak
in Cracow, Poland, November 5 - 8, 1997
For more information contact: www: http://www.cyf-kr.edu.pl/hiper97
ftp://ftp.cyf-kr.edu.pl/hiper97 or email: hiper97@cyf-kr.edu.pl
Best regards,
Jerzy
------------------------------
From: Michael Overton <olof98@overton.cs.nyu.edu>
Date: Sat, 15 Feb 97 23:05:25 EST
Subject: Conference in Honor of Olof Widlund
We are very pleased to announce
A NUMERICAL ANALYSIS CONFERENCE IN HONOR OF
OLOF B. WIDLUND
ON THE OCCASION OF HIS 60th BIRTHDAY
Fri January 23 - Sat January 24, 1998
COURANT INSTITUTE
NEW YORK
The program will consist of technical talks in the day
time, with no parallel sessions. Social events are
planned for both evenings. We expect substantial
participation from Olof's many coworkers and colleagues,
including many of his former students. The primary technical
emphasis of the conference will be domain decomposition, but
other areas of numerical analysis and applied mathematics
will also be represented.
The costs of the conference will be kept as low as possible.
Because it will end on Saturday night, participants will be
able to take advantage of discounted airfares. Special NYU
discounted prices will be available for hotel rooms.
There will be no registration fee.
The conference is open to everyone. Mark your calendar and
send email if you would like be added to the mailing list for
subsequent announcements.
Petter Bjorstad, Michael Overton, Barry Smith and Daniel Szyld,
organizers.
Email: olof98@cims.nyu.edu
------------------------------
From: Trini Flores <flores@siam.org>
Date: Wed, 19 Feb 97 09:44:57 EST
Subject: SIAM Conference on Applied Linear Algebra
Sixth SIAM Conference on Applied Linear Algebra
October 29-November 1, 1997
Snowbird Ski and Summer Resort
Snowbird, Utah
Deadline for submission of minisymposium proposals EXTENDED TO: APRIL 1, 1997.
Deadline for submission of contributed abstracts: APRIL 1, 1997.
The minisymposium proposal form and LaTeX macros for submitting
abstracts can be accessed electronically through the conference Web
homepage at
http://www.siam.org/conf.htm
For more information about plenary speakers and their topics of
presentations,or how to submit minisymposium proposals and contributed
papers, visit
http://www.siam.org/meetings/la97/la97home.htm
or contact SIAM. Telephone: 215-382-9800 Fax: 215-386-7999
E-mail: meetings@siam.org
------------------------------
From: Fritz Keinert <keinert@iastate.edu>
Date: Fri, 21 Feb 1997 10:30:22 CST
Subject: Midwest Numerical Analysis Day 1997
SECOND CALL FOR PARTICIPANTS
MIDWEST NUMERICAL ANALYSIS DAY 1997
Saturday, April 12, 1997
Iowa State University, Ames, Iowa
Information about the conference is available at
http://www.math.iastate.edu/Midwest_NA_Day. Confirmed featured
speakers are Ivo Babuska (Univ. of Texas at Austin), Joe Flaherty
(RPI), and Petter Bjorstad (Univ. of Bergen, Norway, currently at IMA,
Minneapolis).
If you are interested in presenting a 20-minute talk, submit a title
and abstract by March 17, 1997, either through the conference web
page, via e-mail to naday@iastate.edu, or to one of the organizers:
Roger Alexander (alex@iastate.edu, (515) 294-7579) and Fritz Keinert
(keinert@iastate.edu, (515) 294-5223). No registration is required to
simply attend.
The joint annual meeting of the Iowa sections of MAA/ASA/IMATYC will
be held in the same building on the same day. There will be
opportunity to hear talks or socialize with participants from both
conferences. The featured speaker at the other meeting will be Roger
Horn (Univ. of Utah).
------------------------------
From: Petr Prikryl <prikryl@beba.cesnet.cz>
Date: Sat, 22 Feb 1997 17:55:42 +0100 (MET)
Subject: Numerical Modeling in Continuum Mechanics
Charles University Prague Czech Technical University Prague
Ruprecht-Karls-Universit\"at Heidelberg
Second Announcement
NUMERICAL MODELLING IN CONTINUUM MECHANICS
Theory, Algorithms, Applications
The Third Summer Conference
Prague (Czech Republic), September 8 - 11, 1997
Chairmen:
Miloslav Feistauer, Faculty of Mathematics and Physics, Institute of
Numerical Mathematics, Charles University Prague
Karel Kozel, Faculty of Mechanical Engineering, Department of
Technical Mathematics, Czech Technical University Prague
Rolf Rannacher, Institute of Applied Mathematics,
Ruprecht-Karls-Universitaet Heidelberg
Program Committee:
M. Feistauer, P. Le Tallec, K. Kozel, A. Quarteroni, R. Rannacher
Invited Plenary Speakers:
D. N. Arnold (USA), I. Babuska (USA), H.-G. Bock (FRG), R. Glowinski (USA),
P. Le Tallec (France), A. Quarteroni (Italy), Ch. Schwab (Switzerland),
J. Struckmeier (FRG), A. Valli (Italy), W.-L. Wendland (FRG), J.-R. Whiteman
(Great Britain)
Topics:
Fluid Dynamics
Non-Newtonian and Viscoelastic Flows
Porous Media Flows
Material, Structures and Optimization
Structural Mechanics
Call for Papers:
The program of the conference will include invited 50 minute lectures
and 20 minute communications. Please, apply to the contact address,indicate
your intention to give a communication and send us a 15 line abstract.
(This is necessary for acceptance of your communication.) All invited
lectures and communications can be published in the conference proceedings.
All papers will be reviewed. Detailed information will be given later.
Social Program:
The participants will have the opportunity to visit historical parts of
Prague, one of the oldest and most beautiful European towns, full of
romanesque, gothic and baroque churches, palaces and monuments, and to
take part in the Welcome Party and a Concert.
Fees:
The basic fee is 500 US $, which covers Conference Fee, Welcome Party,
Concert, accomodation in double room (4 nights), meals (4x breakfast and
lunch) and refreshment during the conference. It also entitles
participants to receive a copy of the Conference Program, Abstract
Booklet and Proceedings.
The basic fee for accompanying persons is 250 US $, which includes
accomodation + breakfast (4x), Concert and Welcome Party.
Some reduction will be available for a limited number of PhD students
and participants from East European countries.
Important Dates:
February 28, 1997: Submittance of the Registration Form
April 30: Notification of acceptance of the communication
May 31: Payment of the Conference Fee
September 7: Arrival, registration
September 8-11: Scientific program
September 11 or 12: Departure
In view of air travel restrictions, it is possible to arrive already on
September 6 (Saturday).
Contact Address:
Prof. Dr. Miloslav Feistauer, DrSc.
Charles University Prague
Faculty of Mathematics and Physics
Institute of Numerical Mathematics
Malostranske nam. 25
118 00 Praha 1
Czech Republic
E-mail: nmicm97@ms.mff.cuni.cz
Phone: +42 2 21914223, +42 2 21914225
Fax: +42 2 535229
------------------------------
From: Steven Leon <SLEON@umassd.edu>
Date: Fri, 21 Feb 1997 15:55:34 -0500 (EST)
Subject: ATLAST Linear Algebra Workshop
ATLAST Linear Algebra Workshop
July 30 -- August 2, 1997
University of Wisconsin
Madison, Wisconsin
Workshop Presenter -- Lila Roberts
ATLAST is an NSF Project to Augment the Teaching of Linear Algebra
through the use of Software Tools. This is the sixth year of ATLAST
workshops. So far over 400 faculty nationwide have participated in
14 ATLAST workshops and approximately 50 of these faculty have also
participated in one of two invited ATLAST Developers Workshops held
during the summers of 1994 and 1996. A third Developers Workshop is
planned for June 25-28 at the University of California San Diego.
Workshop participants learn about existing software for linear
algebra and are trained in the use of the MATLAB software package.
Attendees will design classroom lessons that incorporate computer
software making use of ATLAST materials that were developed in previous
workshops. These materials are included in "ATLAST Computer Exercises
for Linear Algebra", Prentice-Hall, 1997. A selection of the lesson
plans that are developed will be included on the ATLAST Web page and
some may also be included in the next edition of the ATLAST book.
The first two days of the workshop will be devoted to learning to use
MATLAB and learning how to incorporate software into linear algebra
classes. There will also be discussions on general teaching issues and
linear algebra curriculum. The last two days of the workshop will be
spent working in teams to design lesson plans.
The ATLAST Project provides room and board for participants attending
the workshops.
The ATLAST Project Director is Steven J. Leon and the Assistant Director
is Richard Faulkenberry. Both are in the Mathematics Department of the
University of Massachusetts Dartmouth. The ATLAST project has been
supported by two National Science Foundation Faculty Enhancement grants
and an Education Seed Grant from the International Linear Algebra Society.
Royalties from the ATLAST book are also used to support the project.
All teachers of undergraduate linear algebra courses at colleges or
universities in the USA are invited to apply for the workshop.
The deadline for applications is April 30, 1997. The workshop is limited
to thirty participants and late applications will be accepted on a space
available basis. A screening committee will review applications and
notify applicants of its decisions early in May.
More information about the ATLAST Project and an application form are
available from the ATLAST web page:
http://www.umassd.edu/ATLAST/welcome.html
or by contacting
Steven J. Leon
ATLAST Project Director
Department of Mathematics
University of Massachusetts Dartmouth
North Dartmouth, MA 02747-2300
Telephone: (508) 999-8320
FAX: (508) 910-6917
E-mail: ATLAST@UMASSD.EDU
------------------------------
From: Jack Dongarra <dongarra@cs.utk.edu>
Date: Fri, 21 Feb 1997 06:56:39 -0500
Subject: Research Position at the University of Tennessee
Position available at the University of Tennessee
A research position is available in parallel scientific computing at
the University of Tennessee. The research will include development
of parallel numerical algorithms and of scalable parallel libraries.
This position offers an exceptional opportunity for
innovative research in scientific computing on advanced architectures,
and will involve participation in collaborative projects as part of
the ScaLAPACK effort, described at http://www.netlib.org/scalapack/.
Candidates must have a PhD in computer science, mathematics, or a related
discipline. Expertise in parallel computing and object oriented programming
is required, and expertise in scientific computing is highly desirable.
A strong research capability in numerical methods, with emphasis on
numerical linear algebra techniques for solving large-scale problems,
is essential.
The position is for a period of one year, and will be renewable subject
to availability of funds and satisfactory performance. Additional
benefits of the position include a competitive salary, travel
opportunities, access to state-of-the-art computational facilities
(including both parallel architectures and high-performance workstations),
and collaborative research opportunities in a very active research
program in advanced scientific computing.
The position is available immediately. Applications will be accepted
until the position is filled.
Inquiries should be directed to:
Jack Dongarra
Computer Science Department
University of Tennessee
Knoxville, TN 37996-1301
Phone: 423-974-8295
Fax: 423-974-8296
email: dongarra@cs.utk.edu
http://www.netlib.org/utk/people/JackDongarra.html
------------------------------
From: Head of Department <head@ma.man.ac.uk>
Date: Fri, 21 Feb 1997 14:28:30 GMT
Subject: Faculty Position at Manchester University
From the Head of Department
The Department of Mathematics, Pure & Applied
The University of Manchester
The Beyer Chair in Applied Mathematics is the senior chair of applied
mathematics at Manchester University. Particulars of this Chair, which
fell vacant on the resignation of Professor Phil Hall, and which is
now being advertised, are available from the WWW: click on `Beyer
Chair' at
http://www.ma.man.ac.uk/
or use
http://www.ma.man.ac.uk/Beyer
Applied mathematicians who have a distinguised research record and
wish to be considered for this chair should, QUOTING reference 119/97,
send one copy of their application (giving full details of their
experience, qualifications, and the names of 3 referees, in a form
suitable for photocopying) to:
The Registrar & Secretary,
The University,
Manchester M13 9PL,
England,
The CLOSING date for receipt of applications by the Secretary and
Registrar of the University is May 1st 1997.
------------------------------
From: Gene Golub <golub@sccm.Stanford.EDU>
Date: Sat, 22 Feb 97 15:14:43 PST
Subject: Fellowships at Stanford University
Stanford University
Program in Scientific Computing and Computational Mathematics
NSF Graduate Research Traineeships -- Fall 1997
Exceptionally well-qualified undergraduates are urged to apply
for these NSF Fellowships, supporting graduate study towards
the PhD Degree within the Program in Scientific Computing and
Computational Mathematics.
Further information about the Program may be obtained from
our web-page:
http://www-sccm.Stanford.edu
or by contacting Andrew Stuart:
stuart@sccm.stanford.edu (415-723-8142)
The Fellowships are available to US Citizens and Permanent Residents only.
Closing Date: March 10th
------------------------------
From: Dorothy Bollman <bollman@RUMMAT1.UPR.CLU.EDU>
Date: Sat, 15 Feb 1997 09:38:20 -0500 (EST)
Subject: Faculty Positions at the University of Puerto Rico at Mayaguez
FACULTY POSITIONS AT THE UNIVERSITY OF PUERTO RICO AT MAYAGUEZ
The Mathematics Department of the University of Puerto Rico at Mayaguez
anticipates two tenure-track positions for the academic year 1997-98.
One is for an applied/computational statistian. The other is for a
computational mathematician with some background in computer science,
preferably computer architecture. Ph.D. prefered. Knowledge of Spanish
a plus, although not required.
Interested persons may send a CV and have three letters of reference sent to:
Dorothy Bollman, Chair
Department of Mathematics
University of Puerto Rico
Mayaguez, PR 00681-5000
------------------------------
From: Kristian Witsch <witsch@zeta.numerik.uni-duesseldorf.de>
Date: Thu, 20 Feb 1997 10:53:53 +0100
Subject: Position at University of Duesseldorf
Am Mathematischen Institut der Heinrich-Heine-Universitaet Duesseldorf
ist sofort eine
Universitaetsprofessur (C4)
fuer Angewandte Mathematik
(nachfolge Prof. Dr. B. Doering)
wiederzubesetzen. Der/ Die zukuenftige Stelleninhaber/in soll in der Forschung
ein aktuelles Gebiet der Angewandten Mathematik und in der Lehre auch das
Fach Numerische Mathematik vertreten.
Einstellungsvoraussetzung sind Habilitation oder gleichwertige wissenschaftliche
Leistungen gemaess 49 UG NW.
Die Universitaet strebt an, den Anteil der Frauen am wissenschaftlichen Personal
zu erhoehen, und begruesst daher besonders Bewerbungen von Wissenschaftlerinnen.
Die Bewerbung geeigneter Schwerbehinderter ist erwuenscht.
Bewerbungen mit tabellarischem Lebenslauf, wissenschaftlichem Werdegang,
Schriftenverzeichnis und Verzeichnis der abgehaltenen Lehrveranstaltungen
werden bis zum 1. April 1997 erbeten an den Dekan der
Mathematisch-Naturwissenschaftlichen Fakultaet der Heinrich-Heine-Universitaet
Duesseldorf, Universitaetsstr. 1, D-40225 Duesseldorf.
Sie finden unsere Homepage im Internet unter
http://www.mathematik.uni-duesseldorf.de
------------------------------
From: James Uber <juber@dolphin.cee.uc.edu>
Date: Mon, 17 Feb 1997 10:42:34 -0500
Subject: Ph.D. Fellowships at University of Cincinnati
Interdisciplinary Ph.D. Fellowships:
The University of Cincinnati Earth System Science Program announces
the availability of several Ph.D. graduate student fellowships,
beginning Fall 1997. With support from the National Science
Foundation, each fellow will receive a full tuition scholarship and a
monthly stipend, plus funds for research supplies, travel to meetings,
and support of a summer sabbatical at an off-campus location. Due to
financial support requirements, all fellows must be either
U.S. citizens or permanent residents. While the scope of research
topics is broad and flexible, we are specifically seeking one or more
individuals with interests in: 1) studying spatially distributed
real-time control of disinfectant residual in water distribution
systems, and 2) studying societies as complex adaptive systems, with an
emphasis on understanding the role of watershed hydrology and climate
in societal organization. These two opportunities are described
below, along with contact information.
1. Real-Time Spatially-Distributed Disinfectant Control
in Water Distribution Networks
The question we wish to answer is stated quite simply: How best to
control the spatio-temporal distribution of disinfectant residual
within a water distribution network? The actual problem is not simple,
however, due to complex system dynamics and chemical kinetics. The
looped distribution network (i.e., it is not a spanning tree) is a
multiple-input multiple-output, spatially extended dynamic system with
significant time delays. The network hydraulics, which govern
disinfectant transport on a system scale, are driven by external
consumer loads and time varying pump operations, and it is typical
that network flows will change dramatically and frequently, both in
magnitude and direction. Coupled with these dynamics are complex
disinfectant kinetics that depend on the pipe material at a physical
location, the water source(s), and the type of disinfectant addition
at the source(s) (multiple disinfectants are sometimes used). Further,
the reactions with chlorine (the most common disinfectant) produce
byproducts that evidence suggests are carcinogenic. This evidence has
led to tightening lower and upper limits on acceptable chlorine
concentrations within the network, and thus to a real need for more
advanced control approaches and for a better understanding of
disinfectant decay kinetics.
Our plans for this work include the development and adaptation of
control-theoretic approaches for real-time spatially-distributed
control of multiple simultaneous disinfectant additions. Activities
that fall within the project scope include: 1) development of
appropriate modeling and simulation methods, 2) consideration of
system robustness in the face of uncertain fluctuations in water
demands, and 3) optimal location of disinfectant additions to minimize
control effort.
Applications are encouraged from individuals in any branch of
engineering or the physical sciences; applicants should demonstrate a
high degree of creativity along with strong quantitative and
programming skills, and are expected to interact with chemists,
electrical and environmental engineers, and utility personnel
participating on the research team. For more information including
application materials, contact Prof. Jim Uber (Environ. Hydrology,
513-556-3643, Jim.Uber@uc.edu) or Prof. Marios Polycarpou (Elec. &
Comp. Eng. & Comp. Sci., 513-556-4763, Marios.Polycarpou@uc.edu).
2. Spatially Distributed, Multi-Agent Models of Socioeconomic Organization.
The selected fellow will investigate the nature of societal adaptation
to the watershed environment, coupled with climate variability in the
form of spatially or temporally variable precipitation. Historically,
the evolution of societies has been impacted by the spatial and temporal
distribution of water resources over the landscape. For example, the
ancient Maya of northwestern Belize are theorized to have migrated
upland from swamp margins to higher elevations, despite a regional
climate that is arid four months out of twelve. Was this adaptation,
as opposed to remaining in the swamp margins, one visible aspect of
Maya self-organization toward a "critical" state - characterized by
large populations and high degrees of resource utilization? In an
attempt to address such questions, the fellow will be involved with
current work on spatially distributed dynamic models of socioeconomic
adaptation, in the context of spatial and temporal water resource
dynamics over a cellular --- possibly fractal --- landscape. On this
landscape reside a discrete number of agents, representing households;
these agents occupy land, engage in production and consumption of a
single good, and in the process require locally available water
resources. Further, the agents enter into exchange agreements with
other agents belonging to their social network, migrate in response
to stress, and reproduce or die according to their ability to produce
and consume in sufficient quantities. Applications are encouraged from
individuals in the physical and natural sciences, economics, and
engineering; applicants should demonstrate a high degree of
creativity along with strong quantitative skills, and are expected to
interact with hydrologists, engineers, and social scientists
participating on the research team. For more information including
application materials, contact Prof. Jim Uber (Environ. Hydrology,
513-556-3643, Jim.Uber@uc.edu) or Prof. Ali Minai (Elec. &
Comp. Eng. & Comp. Sci., 513-556-4783, Ali.Minai@uc.edu).
------------------------------
From: SIAM <jean-bart@siam.org>
Date: Thu, 20 Feb 97 11:43:21 EST
Subject: Contents, SIAM Review
SIAM Review
March 1997, Volume 39, Number 1
CONTENTS
INTRODUCTORY
Changes Planned for SIAM Review
ARTICLES
Eigenmodes of Isospectral Drums
Tobin A. Driscoll
On Two Ways of Stabilizing the Hierarchical Basis Multilevel Methods
Panayot S. Vassilevski
The Mathematics of the Pentium Division Bug
Alan Edelman
New Conservation Laws for the Interaction of Nonlinear Waves
A. M. Balk
CLASSROOM NOTES
The Inspection Paradox Inequality
John E. Angus
Hoffman's Circle Untangled
Jon Lee
An Analytic Center Manifold for a Simple Epidemiological Model
Marc R. Roussel
Horizontal Circular Curves and Cubics
Francois Dubeau
Optimum Spring-Damper Design for Mass Impact
David A. Peters
PROBLEMS AND SOLUTIONS
BOOK REVIEWS
Bayesian Theory (Jose M. Bernardo and Adrian F. M. Smith), Mark Berliner
Applied Stochastic Processes: A Biostatistics and Population Oriented Approach
(Suddhendu Biswas), Rick Durrett
Geometric Tomography. Encyclopedia of Mathematics and its Applications. Vol. 58
(Richard J. Gardner), Wm. J. Firey
Matrices of Sign-Solvable Linear Systems (Richard A. Brualdi and Bryan L.
Shader), Peter M. Gibson
Dynamical Systems of Algebraic Origin (Klaus Schmidt), Leon W. Green
Probability Theory: An Advanced Course (Vivek S. Borkar), Allan Gut
Introduction to Spectral Theory, with Applications to Schrodinger Operators (P.
D. Hislop and I. M. Sigal), Bernard Helffer
Introduction to Mechanics and Symmetry (Jerrold E. Marsden and Tudor S. Ratiu),
Robert Hermann
Afternotes on Numerical Analysis (G. W. Stewart), David R. Kincaid
Linear and Quasilinear Parabolic Problems. Volume 1: Abstract Linear Theory
(Herbert Amann), Gary M. Lieberman
Modelling Mathematical Methods and Scientific Computation (Nicola Bellomo and
Luigi Preziosi), J. David Logan
Water Waves: Relating Modern Theory to Advanced Engineering Practice (Matiur
Rahman), Anne C. Morlet
Finite Sums Decompositions in Mathematical Analysis (Themistocles M. Rassias and
Jaromir Simsa), Frantisek Neuman
Borel-Laplace Transform and Asymptotic Theory: Introduction to Resurgent
Analysis (Boris Yu. Sternin and Victor E. Shatalov), Adri Olde Daalhuis
The Splitting Extrapolation Method (C. B. Liem, T. Lu, and T. M. Shih), Ulrich
Rude
Asymptotic Efficiency of Nonparametric Tests (Yakov Nikitin), Ramalingam
Shanmugam
Handbook of Radiation and Scattering of Waves (Adrianus T. de Hoop), Joseph J.
Shirron
Accuracy and Stability of Numerical Algorithms (Nicholas J. Higham), G. W.
Stewart
Fuzzy Logic for Business and Industry (Earl D. Cox), Rod Taber
Fourier Integral Operators (J. J. Duistermaat), Michael E. Taylor
Wavelets: An Analysis Tool (M. Holschneider), David Walnut
SELECTED COLLECTIONS
LATER EDITIONS
CHRONICLE
------------------------------
From: SIAM <thomas@siam.org>
Date: Thu, 20 Feb 97 15:38:42 EST
Subject: Contents, SIAM Applied Mathematics
SIAM JOURNAL ON Applied Mathematics
APRIL 1997 Volume 57, Number 2
CONTENTS
Multidimensional Linear Stability of a Detonation Wave at High Activation Energy
Mark Short
Analysis of a Reaction-Diffusion System Modeling Man-Environment-Man Epidemics
V. Capasso and R. E. Wilson
Reciprocal Relations, Bounds, and Size Effects for Composites with Highly
Conducting Interface
Robert Lipton
Variational Approximation of Maxwell's Equations in Biperiodic Structures
Gang Bao
Cavity Effects in Microwave Heating of Ceramics
G. A. Kriegsmann
Calculating Current Densities and Fields Produced by Shielded Magnetic Resonance
Imaging Probes
Lawrence K. Forbes, Stuart Crozier, and David M. Doddrell
Efficient Estimation of Linear Functionals in Emission Tomography
Alvin Kuruc
Eigenvalue Aymptotics of Layered Media and Their Applications to the Inverse
Problem
Gerasimos A. Athanassoulis and Vassilis G. Papanicolaou
An Asymptotical Inversion of the Eigenfrequencies for a Three-Dimensional
Problem with Spherical Symmetry
Mikhail Brodsky
On the Spectra of Pulses in a Nearly Integrable System
Toshiyuki Ogawa and Hiromasa Suzuki
Probability Distributions in Periodic Random Environment and Its Applications
Boyan Dimitrov, Stefanka Chukova, and David Green, Jr.
Nonlinear Approximation of Random Functions
Albert Cohen and Jean-Pierre D'Ales
On the Solution of Wiener-Hopf Problems Involving Noncommutative Matrix Kernel
Decompositions
I. David Abrahams
Diagonalizable Generalized Abel Integral Operators
Alok Chakrabarti and A. J. George
------------------------------
From: Baltzer Science <mailer@ns.baltzer.nl>
Date: Mon, 17 Feb 1997 12:39:02 +0100
Subject: Contents, Advances in Computational Mathematics
Advances in Computational Mathematics 7 (1997) 1-2
Special Issue: Parallel methods for ODEs
Editor: Kevin Burrage
Kevin Burrage
Parallel methods for ODEs 1-31
Pierluigi Amodio and Luigi Brugnano
Parallel ODE solvers based on block BVMs 5-26
Claus Bendtsen
A parallel stiff ODE solver based on MIRKs 27-36
K. Burrage and H. Suhartanto
Parallel iterated methods based on multistep Runge-Kutta methods of Radau type
37-57
K. Burrage and H. Suhartanto
Parallel iterated method based on multistep Runge-Kutta of Radau type for stiff
problems 59-77
J. C. Butcher
Order and stability of parallel methods for stiff problems 79-96
Robert F. Enenkel and Kenneth R. Jackson
DIMSEMs - diagonally implicit single-eigenvalue methods for the numerical solution
of stiff ODEs on parallel computers 97-133
Min Hu, Ken Jackson, Jan Janssen and Stefan Vandewalle
Remarks on the optimal convolution kernel for CSOR waveform relaxation 135-156
P. J. van der Houwen and J. J. B. de Swart
Parallel linear system solvers for Runge-Kutta methods 157-181
P. J. van der Houwen and W. A. van der Veen
Waveform relaxation methods for implicit differential equations 183-197
------------------------------
End of NA Digest
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