Subject: NA Digest, V. 97, # 08 NA Digest Sunday, February 23, 1997 Volume 97 : Issue 08 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Query on Sparse Linear Least Squares Problem PARASOL - Parallel Sparse Matrix Solvers Seeking Help With High Performance Computing Workshop Temporary Change of Address for Volker Mehrmann New Book in Global Optimization Fourth European PVM/MPI Users' Group Meeting Hewlett-Packard High Performance Computing Meeting Conference in Honor of Olof Widlund SIAM Conference on Applied Linear Algebra Midwest Numerical Analysis Day 1997 Numerical Modeling in Continuum Mechanics ATLAST Linear Algebra Workshop Research Position at the University of Tennessee Faculty Position at Manchester University Fellowships at Stanford University Faculty Positions at the University of Puerto Rico at Mayaguez Position at University of Duesseldorf Ph.D. Fellowships at University of Cincinnati Contents, SIAM Review Contents, SIAM Applied Mathematics Contents, Advances in Computational Mathematics Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. URL for the World Wide Web: http://www.netlib.org/na-net/na_home.html ------------------------------------------------------- From: Jean Claude Berges 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 ************************** -------