NA Digest Tuesday, May 26, 1992 Volume 92 : Issue 21 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Difficulties with the NA-Net Machine Change of Address for Roland Freund Did Roundoff Cause Patriot Failure? Argonne Tech Reports via FTP Looking for LU Decomposition Software on the CM-2 Mailing list for Auckland conference Undergraduate Use of MATLAB Multidimensional Convolution Lancelot: A Nonlinear Optimization Package Ten Lectures on Wavelets LAPACK Users' Guide Now Available Bibliography of Soviet Works on Interval Computations Conference on Scientific Database Management Announcement of Sup'Eur '92 High Performance Computing in Japan Method of Lines Session IMACS PDE7 Conference Announcement Contents: Numerical Algorithms Contents: SIAM Control and Optimization Contents: SIAM Scientific and Statistical Computing Contents: SIAM Mathematical Analysis Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. ------------------------------------------------------- From: Jack Dongarra Date: Sun, 24 May 92 09:55:46 -0400 Subject: Difficulties with the NA-Net Machine We have been having some problems with the machine running netlib and na-net. As it turns out, we have lost all of the email sent via the na-net from Thursday, May 22, 11:45 pm until Saturday, May 24, 5:00 pm. Sorry for the inconvenience. Jack ------------------------------ From: Roland Freund Date: Wed, 20 May 92 22:06 EDT Subject: Change of Address for Roland Freund As of May 18, 1992, my new address is: Roland W. Freund AT&T Bell Laboratories Room 2C-420 600 Mountain Avenue Murray Hill, NJ 07974-0636 email: freund@research.att.com Phone: (908) 582-4226 Fax: (908) 582-5857 ------------------------------ From: Robert Skeel Date: Mon, 18 May 92 21:21:48 -0500 Subject: Did Roundoff Cause Patriot Failure? Article on page 1347 of the 13 March 92 issue of Science ``Fatal Error: How Patriot Overlooked a Scud'' The error in question was a roundoff error, or roundoff errors. The description of what happened is not clear, to me. I would be interested in more detail than is offered in the article. I am hoping that someone out there might be able to offer a plausible explanation. ------------------------------ From: Stephen Wright Date: Mon, 18 May 92 21:07:24 CDT Subject: Argonne Tech Reports via FTP A subset of recent tech reports issued by staff and visitors of the Mathematics and Computer Science division at Argonne is now accessible via anonymous ftp. The operative instruction is ftp info.mcs.anl.gov Log in as "anonymous" and use your email address as a password. To obtain a listing of available reports, cd to "/pub/tech_reports/abstracts" and download the file "contents". The reports themselves are stored in compressed dvi and postscript format on the area "/pub/tech_reports/reports". Steve Wright (na.swright@na-net.ornl.gov) ------------------------------ From: John Prentice Date: Sun, 24 May 92 16:20:28 MDT Subject: Looking for LU Decomposition Software on the CM-2 I am doing research in quantum mechanical scattering of low energy atoms off crystal surfaces. This involves solving large systems of Fredholm integral equations of the 2nd kind, which I do using a Nystrom method currently. The linear systems that are generated are quite dense and complex valued. Currently I run calculations on the Cray Y-MP which are up to order 6,000 . However, I need to run some now which will be closer to order 10,000 . I have a fair amount of computer time on CM-2s, so this is the platform I would like to use for these calculations, if possible. Originally I designed my code to use the CMSSL software library that TMC provides, however, I have not been having good experiences with it. For this and other reasons (having to do with some iterative methods I am interested in trying), I would prefer to do a LU decomposition of my matrix. If anyone has access to software to do a LU decomposition of a complex matrix on the CM, I would very much appreciate hearing from you. John John K. Prentice Quetzal Computational Associates 3200 Carlisle N.E., Albuquerque, NM 87110-1664; 505-889-4543 john@aquarius.unm.edu -or- jkprent@cs.sandia.gov ------------------------------ From: John Butcher Date: Tue, 19 May 92 18:00:36 NZS Subject: Mailing list for Auckland conference Within the next week or two, a package announcing details of the "International Conference on Scientific Computation and Differential Equations" Auckland, New Zealand, 4 - 8 January 1993 will be sent to all members of a mailing list that has been put together from miscellaneous sources. The package will contain (1) A colour poster for display, promoting the conference. (2) Some copies of a brochure containing registration details, a call for papers and other information. (3) Some copies of the registration form for the meeting. Although we have made reasonable efforts to make sure that a copy of the package will go to most people likely to be interested, there is no doubt that there are many gaps in our list. Please let me (butcher@mat.aukuni.ac.nz or na.butcher@na-net.ornl.gov) or Horst Gerlach (gerlach@mat.aukuni.ac.nz) know as soon as possible if you suspect that we do not have your institution on our mailing list and you would like to receive the package on the conference. In this case please give us the name and Air Mail address of a suitable contact person. Many thanks, John Butcher ------------------------------ From: John Mathews Date: Monday, 19 May 1992 06:40 PDT Subject: Undergraduate Use of MATLAB Would anyone be interested in using MATLAB to teach a beginning undergraduate course in in Numerical Analysis? I am considering the development of these supplementary materials for my text NUMERICAL METHODS 2nd. John Mathews Prof. of Mathematics Calif. State Univ. Fullerton Fullerton, CA 92631 e-mail mathews@fullerton.edu ------------------------------ From: Tim Eakin Date: Wed, 20 May 92 15:40:58 CDT Subject: Multidimensional Convolution I have a two dimensional diffusion problem that will involve numerical convolution. All the convolution algorithms, mostly based on FFT, that I can find in archives, IMSL, BCS, etc., are for one dimensional vector convolution that compute $$ z_j = \sum_{k=1}^n x_{j-k+1} y_k $$ However, I need a similar program that can compute a two dimensional equivalent $$ z_{j,m} = \sum_{k=1}^n \sum_{q=1}^n x_{j-k+1,m-q+1} y_{k,q} $$ but cannot find such a thing. Has anyone ever seen such a thing on netlib, lapack, imsl, simtel, etc. ?? Thanks for any information. Tim Eakin Center for High Performance Computing University of Texas, Austin, TX xxvb744@chpc.utexas.edu ------------------------------ From: Andrew Conn Date: Thu, 21 May 92 12:00:11 -0500 Subject: Lancelot: A Nonlinear Optimization Package ANNOUNCEMENT OF LANCELOT RELEASE A We are pleased to announce the release of LANCELOT, a software package for solving nonlinear optimization problems. The package is particularly appropriate for large examples. The embedded algorithms are designed to provide convergence to a local minimizer from any starting guess. The package is suitable for both unconstrained and constrained problems. General features include facilities to compute numerical and check analytical derivatives, and to restart interrupted computations automatically. A variety of direct and iterative techniques are provided to solve the necessary linear algebraic subproblems. The software also uses a full reverse communication interface for greater flexibility and adaptability. The package is written in standard ANSI Fortran77. It has been ported to CRAY supercomputers, Digital VAX minis, Digital DEC workstations, IBM VM/CMS mainframes, and IBM RISC System/6000 and SUN workstations. A fully automated installation procedure is supported for all these machines/systems. Single and double precision versions are available. The program's dimensions may also be adapted to fit within machines with different memory sizes. Further information on the package is available from Philippe Toint at pht@math.fundp.ac.be A.R. Conn, Nick Gould and Ph. Toint ------------------------------ From: SIAM Date: Thu, 21 May 92 12:28:49 EST Subject: Ten Lectures on Wavelets NEW PUBLICATION FROM SIAM Ten Lectures on Wavelets Ingrid Daubechies CBMS-NSF Regional Conference Series in Applied Mathematics 61 Wavelets are a mathematical development that may revolutionize the world of information storage and retrieval according to many experts. They are a fairly simple mathematical tool now being applied to the compression of data--such as fingerprints, weather satellite photographs, and medical x-rays--that were previously thought to be impossible to condense without losing crucial details. Contents Introduction; Preliminaries and Notation; The What, Why, and How of Wavelets; The Continuous Wavelet Transform; Discrete Wavelet Transforms: Frames; Time-Frequency Density and Orthonormal Bases; Orthonormal Bases of Wavelets and Multiresolutional Analysis; Orthonormal Bases of Compactly Supported Wavelets; More About the Regularity of Compactly Supported Wavelets; Symmetry for Compactly Supported Wavelet Bases; Characterization of Functional Spaces by Means of Wavelets; Generalizations and Tricks for Orthonormal Wavelet Bases; References; Indexes. 1992 xix + 354 pages / Softcover / ISBN 0-89871-274-2 List Price $37.50 / SIAM/CBMS Member Price $30.00 Order Code CB61 For ordering information contact SIAM, 3600 University City Science Center, Philadelphia, PA 19104-2688; telephone (215) 382-9800; fax (215) 386-7999; e-mail: service@siam.org; toll free 1-800-447-SIAM U.S. only. ------------------------------ From: SIAM Date: Thu, 21 May 92 12:28:49 EST Subject: LAPACK Users' Guide Now Available NOW AVAILABLE FROM SIAM ... TO BE PUBLISHED MAY 29, 1992 LAPACK Users' Guide E. Anderson, Z. Bai, C. Bischof, J. Demmel, J. Dongarra, J. Du Croz, A. Greenbaum, S. Hammarling, A. McKenney, S. Ostrouchov, and D. Sorensen LAPACK is a transportable library of Fortran 77 subroutines for solving the most common problems in numerical linear algebra. LAPACK supersedes LINPACK and EISPACK, principally by restructuring the software to achieve much greater efficiency on vector processors, high-performance "superscalar" workstations, and shared memory multiprocessors. LAPACK also provides extra functionality, uses some new or improved algorithms, and integrates the two sets of algorithms into a unified package. LAPACK Users' Guide gives an informal introduction to the design of the algorithms and software, summarizes the contents of the package, and describes conventions used in the software and its documentation. LAPACK can be used to solve the most common problems in numerical linear algebra: systems of linear equations; linear least squares problems; eigenvalue problems; singular value problems; matrix factorizations; estimating condition numbers Additional improvements over LINPACK and EISPACK include: faster run time; better error bounds; more and better condition numbers Special features of the guide include: Quick reference guide to the BLAS; How to convert calls to LINPACK or EISPACK to LAPACK; Quick reference tables for Driver Routines The authors have directed that royalty from the sale of this book be placed in a fund administered by SIAM to help students attend SIAM meetings and other related SIAM activities. All purchasers of LAPACK Users' Guide will be notified of software updates. Contents Preface; Part 1: Guide; Chapter 1: Essentials; Chapter 2: Contents of LAPACK; Chapter 3: Performance of LAPACK; Chapter 4: Accuracy and Stability; Chapter 5: Documentation and Software Conventions; Chapter 6: Installing LAPACK Routines; Chapter 7: Troubleshooting; Appendix A: Index of Driver and Computational Routines; Appendix B: Index of Auxiliary Routines; Appendix C: Quick Reference Guide to the BLAS; Appendix D: Converting from LINPACK or EISPACK; Appendix E: LAPACK Working Notes; Bibliography; Index; Part 2: Specifications of Routines. 1992 xv + 235 pages / Softcover / ISBN 0-89871-294-7 List Price $19.50 / SIAM Member Price $15.60 For ordering information contact SIAM, 3600 University City Science Center, Philadelphia, PA 19104-2688; telephone (215) 382-9800; fax (215) 386-7999; toll free: 1-800-447-SIAM U.S. only; e-mail service@siam.org. ------------------------------ From: Ralph B. Kearfott Date: Mon, 18 May 92 23:13:09 CDT Subject: Bibliography of Soviet Works on Interval Computations BIBLIOGRAPHY OF SOVIET WORKS ON INTERVAL COMPUTATIONS To date authors from the former Soviet Union have published or prepared for publication at least 500 papers in Russian devoted to various areas of Interval Computations. Unfortunately, due to the language barrier and problems with access, these works are practically unknown outside the former Soviet Union. This publication is a step to remedy this situation. The bibliography includes references to the works of authors who were citizens of the Soviet Union when the works were written. The list, prepared in the Computer Center of the Siberian Branch of the Russian Academy of Sciences (Krasnoyarsk) under the management of Dr. Boris S.Dobronets, was taken as the basis for the bibliography. Later, the list was corrected, appended and translated into English by Lyudmila V.Kupriyanova (Saratov State University), and edited by Alexander G.Yakovlev (Moscow, Institute for New Technologies) and R.Baker Kearfott (University of Southwestern Louisiana). The Editorial Board of the International Journal "Interval Computations" can offer translation upon demand of these papers into English. We can also supply foreign readers with copies of these materials in Russian. To order copies, please contact the above representative in this case, too. V.M.Nesterov, Editor-in-Chief of "Interval Computations" To obtain the bibliography, along with ordering and fee information, you may ftp to usl.edu, log on as an "anonymous" user, then issue the following commands: cd pub/interval_math get orderfrm.asc get biblist1.asc get biblist2.asc Alternatively, the first part of the bibliography appears in vol. 1 issue 1 of "Interval Computations". Finally, you may contact: R. B. Kearfott Department of Mathematics University of Southwestern Louisiana U.S.L. Box 4-1010 Lafayette, LA 70504-1010 USA Tel.: (318) 231-5270 E-mail: rbk@usl.edu (Internet) (Representative, Western Hemisphere, Interval Computations) ------------------------------ From: Hans Hinterberger Date: Tue, 19 May 92 10:27:14 +0200 Subject: Conference on Scientific Database Management VI SSDBM Sixth International Working Conference on Scientific and Statistical Database Management June 9 - 12, 1992, Ascona Switzerland SAMPLES of the Conference Program SESSION 1: LANGUAGES Solving Spatial Analysis Problems with GeoSAL, A Spatial Query Language SESSION 2: DOMAIN SCIENCES The Data Analysis System for the COMPTEL Gamma-Ray Telescope aboard the NASA Compton Gamma-Ray Observatory: Experiences from one year Mission Data Analysis Data Management for Molecular Genetics Applications: A Case Study SESSION 3: SCIENTIFIC DATABASES Integration of scientific data and formulae in an object-oriented system A Functional Approach to Scientific Database Implementation 13:00 - 18:00 SEMINAR LARGE-SCALE COLLABORATION IN STATISTICS: The European Perspective SESSION 4: STATISTICAL DATABASES Resolving Data Heterogeneity in Scientific and Statistical Databases Databases in S SESSION 5: AGGREGATED DATA, TEMPORAL DATA Matrix-based interchange of aggregated statistical data SESSION 6: META-DATA MANAGEMENT, DATA STRUCTURES Definition and use of meta-data in statistical data processing Concurrent Operations in Balanced and Nested Grid Files For Information contact Hans Hinterberger Institute for Scientific Computing, ETH Zentrum CH-8092 Zurich, Switzerland e-mail: hinterberger@inf.ethz.ch IN COOPERATION WITH IEEE Computer Society, International Association for Statistical Computing (iasc). ------------------------------ From: Robert L. Feldman Date: Tue, 19 May 92 14:48:23 EDT Subject: Announcement of Sup'Eur '92 SUPERCOMPUTING IN EUROPE INVITATION AND FINAL PROGRAM FOR SUPEUR 92, Umea September 13-16, 1992 LOCATION AND DATE OF MEETING The sixth annual meeting of SupEur will be held in Umea, Sweden during September 13-16, 1992. The meeting will be hosted by the University of Umea and the Supercomputer Center North (SDCN). The conference will take place at Aula Nordica located on the university campus. THE SUPEUR ORGANIZATION The SupEur organization is an association of European academic and research institutions which are actively engaged in large scale and numerically intensive computing on IBM systems. The main objective of SupEur is to provide an open forum for the European supercomputer and high performance computing user community to exchange ideas, experiences and solution to problems. SupEur organizes an annual conference covering these and related topics. In order to establish as wide an international community of academic supercomputer users as possible, SupEur and its counterpart SUPER! in the USA work together in areas of mutual interest. WHO SHOULD ATTEND THE MEETING The SupEur 92 meeting welcomes users and potential users of high performance computers and representatives of computer centres serving researchers in academia and industry. The meeting is particularly intended to address problems and needs of high performance computing on IBM machines. It is aimed primarily at users and those supporting them on supercomputers and other high performance computers by the provision of training, code, advice, libraries and so on. MAIN TOPICS OF THE MEETING SupEur 92 will concentrate mainly on the following topics: o High Performance Computing (HPC): The Future o Algorithm Design and High Performance Computing Libraries o Tools, Environments, and Languages o Clustered Workstations and Cooperative Processing o Scientific Visualization SOFTWARE EXHIBITION Vendors are invited to contact the organizers. Workstations and video facilities will be available for demonstrations. FOR MORE INFORMATION PLEASE CONTACT Torbjorn Johansson SDCN University of Umea S-901 87 Umea, Sweden Phone: +46 90 166585, Fax: +46 90 158405 e-mail: supeur92@cs.umu.se Bo Kagstrom Inst. of Information Processing University of Umea S-901 87 Umea, Sweden Phone: +46 90 165419 e-mail: bokg@cs.umu.se ------------------------------ From: Raul Mendez Date: Wed, 20 May 92 09:52:39 JST Subject: High Performance Computing in Japan New Book: HIGH PERFORMANCE COMPUTING: Research and Practice in Japan Edited by Raul Mendez Part I: Supercomputing: Past and Present [Architectures and Systems] 1. Japanese Supercomputers: An Overview R. Mendez 2. Fujitsu VP2000 Series M. Takahashi 3. The Nec SX-3 Supercomputer Series T. Watanabe 4. An Overview of the HITACHI S-820 Supercomputer System S. Kawabe 5. Japanese Supercomputers in Thermal Perspective W. Nakayama [Software: Languages to Applications] 6. Vector Fortran: Compilation and Optimization Y. Tanakura 7. V-Pascal: An Automatic Vectorizing Compiler for Pascal with No Language Extensions T. Tsuda 8. A Comparison Study of Automatically Vectorizing Fortran Compilers H. Nobayashi 9. Performance of Vector Version of NUMPAC I. Ninomiya 10.Activities of Computational Fluid Dynamics in Japan - Compressible Flow Simulations K. Fujii 11.Supercomputing Activities in Computational Chemistry in Japan K. Morokuma Part II Experimental Supercomputing 12.General remarks on the National R&D program "High Speed Computing System for Scientific and Technological Uses K. Tamura 13.Sigma-1: A Dataflow Supercomputer for Scientific Computations T. Shimada 14.The PAX Project T. Hoshino 15.Project GRAPE: Special-purpose computers for many-body problems J. Makino ------------------------------ From: W. E. Schiesser Date: Wed, 20 May 1992 12:49:06 -0500 (CDT) Subject: Method of Lines Session Method of Lines To be presented at the Seventh IMACS International Conference on Computers Methods for PDEs Rutgers University June 22-24, 1992 Session Organizers: W. E. Schiesser SSC Laboratory, MS 4003 2550 Beckleymeade Avenue Dallas, TX 75237 and George D. Byrne Technical Computing Division Exxon Research and Engineering Company P. O. Box 998 Annandale, NJ 0880l-0998 Method of Lines and Local Uniform Grid Refinement J. G. Verwer, R. A. Trompert Effective Tactics for Designing General Purpose Initial Value PDE Code in Two Dimensions J. M. Hyman Iterative Solution of the Discrete Ordinate Equations for a Radiatively Participating Medium by the Method of Lines A. Yucel Is NMOL Just Differential Equations? G. D. Byrne Mass and Energy Transport Boundary Conditions for a Spherical MOL Simulation A. C. Hindmarsh, S. H. Johnson A Method of Lines Analysis of the Transient Behaviour of the 6.6kA Current Leads at the Superconducting Super Collider J. A Demko, W. E. Schiesser, R. H. Carcagno An Implementation of a Parallel MOL on the Intel IPCS/860 Parallel computer W. F. Lawkins, J. S. Payne Experiments with an Ordinary Differential Equation Solver in the Parallel Solution of Method of Lines Problems on a Shared Memory Parallel Computer D. K. Kahaner, W. E. Schiesser, S. Thompson Method of Lines Solution of a Two-dimensional Tubular Reactor Model with Heat Effects A. Papadourakis, M .D. Phadke, W. D. Weir Accuracy of Numerical Solutions of the Diffusion in Action PDE in the Dome- Krinsky-Wang RF Noise Theory for Linear and Quadratic Diffusion Coefficients H.-J Shih, J. A. Ellison MOL Calculation of the Solitons of the Cubic Schrodinger Equation W. E Schiesser ------------------------------ From: Karen Hahn Date: Sun, 24 May 92 11:18:47 EDT Subject: IMACS PDE7 Conference Announcement 7TH. IMACS INTERNATIONAL CONFERENCE ON COMPUTER METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS (formerly known as the Lehigh Conferences) June 22-24, 1992, Rutgers University, New Brunswick, NJ 08903, USA CONFERENCE COMMITTEE R. Vichnevetsky (Chair / IMACS, Rutgers) , W.F. Ames (Georgia Tech.), D. Knight (Rutgers), J.R. Rice (Purdue) ,G. Richter (Rutgers) INVITED SESSIONS PARALLEL METHODS FOR PDEs (Chair : J.R. Rice - Purdue) SOLUTIONS OF PDEs WITH CONNECTIONS MACHINES (Chair : K. Jordan \Thinking Mach. Corp.) ADAPTIVE GRID METHODS FOR TIME-DEPENDENT PDEs (Chair :J.G. Verwer -CWI- Amsterdam) FLUID DYNAMICS CALCULATIONS ON UNSTRUCTURED MESHES (Chairs M.J. Fritts -SAIC- and D. Knight -Rutgers) GRIDDING ACCURACY ESTIMATION & ADAPTION FOR THE NAVIER-STOKES EQUATIONS. (Chairs M.J. Fritts -SAIC- and D. Knight -Rutgers) ADAPTIVE METHODS FOR TIME-DEPENDENT PDEs (Chair:J.E. Flaherty /RPI) FEM METHODS FOR PDEs (Chair : R. Falk / Rutgers) COMPUTATIONAL OCEAN ACOUSTICS (Chair : M.J. Buckingham .Scripps Inst.) MODELLING AND COMPUTATIONAL METHODS IN UNDERWATER ACOUSTICS (Chair : V.A. Dougalis /NTU Athens Greece) INVERSE PROBLEMS IN ACOUSTICS (Chair :R.P. Gilbert /U. of Delaware) NUMERICAL METHODS IN GUIDED WAVE OPTICS I (chair :D.Yevick /Queen's U., ONT. Canada) NUMERICAL METHODS IN GUIDED WAVE OPTICS II (Chair : M. Glasner / Penn. State) METHODS OF LINES (Chairs : W.E. Schiesser /Lehigh & G.D. Byrne /EXXON) LOCALIZED ADJOINT METHODS AND NUMERICAL TREATMENT OF DISCONTINUOUS FRONTS (Chair : I. Herrera /U.N.A. de Mexico) PERFORMANCE OF PARALLEL SPARSE MATRIX ALGORITHMS (Chair :Mo Mu /Purdue) SYMBOLIC COMPUTATION IN THE NUMERICAL SOLUTION OF PDE's (Chair : S. Steinberg /Univ. of New Mexico) BLACK-BOX & SPECIAL PROGRAMS FOR THE SOLUTION OF PDEs ON SUPERCOMPUTERS (Chairs :R. Weiss and W. Schoenauer /U. Karlsruhe- Germany) FUTURE DIRECTIONS IN MATHEMATICAL SOFTWARE FOR PDEs (Chair : C. Ribbens /Virginia Tech.) RECENT ALGORITHMS FOR NONLINEAR PDEs. (Chairs :S.K. Dey /East. Ill.U.& L.Fishman / Co. Sch.of Mines) GRID FREE, SCATTERED DATA RADIAL BASIS FUNCTION APPROXIMATIONS (Chairs :E.J. Kansa /Lawrence L. Nat. Labs & A. Law /U. of Regina) NUMERICAL SOLUTION OF NONLINEAR SCHROEDINGER EQUATIONS (Chair : T.R.Taha /U. of Georgia) For more information, including an electronic registration form, contact: Karen Hahn IMACS PDE7 Conference Secretary Rutgers University Dept. of Computer Science New Brunswick, NJ 08903 USA FAX: 908 932 5530 e-mail: imacs@cs.rutgers.edu ------------------------------ From: neabbs!baltzer@relay.nluug.nl Date: Tue May 19 14:20:30 1992 Subject: Contents: Numerical Algorithms Contents new journal NUMERICAL ALGORITHMS Editor-in-Chief: CLAUDE BREZINKSI Laboratoire d'Analyse Numerique et d'Optimisation UFR IEEA - M3, Universite de Lille 1, France fax: +33 - 20 43 49 95 e-mail: brezinsk@frcitl81.bitnet Contents Volume 2, no. 2 N. Osada: Extensions of Levin's transformations to vector sequences C. Brezinski, M. Redivo Zaglia and H. Sadok: Addendum to 'Avoiding breakdown and near-breakdown in Lanczos type algorithms' K. Tanabe and M. Sagae: Pivoting strategy for rank-one modification of LDM-like factorization S. Paszkowski: Convergence acceleration of continued fractions of Poincare's type 1 R.S. Varga and A.J. Carpenter: Some numerical results on best uinform rational approximation of x on [o.1] J.L. Merrien: A family of Hermite interpolants by bisection algorithms S. Cabay and G. Labahn: A superfast algorithm for multi-dimensional Pade systems M. Gasca, C.A. Micchelli and J.M. Pena: Almost strictly positive matrices ------------------------------ From: SIAM Date: Wed, 20 May 92 10:57:46 EST Subject: Contents: SIAM Control and Optimization Table of Contents SIAM Journal on Control and Optimization Vol. 30, No. 5, September 1992 Exact Semi-Internal Control of an Euler-Bernoulli Equation Jong Uhn Kim Sharp Sufficient Conditions for the Observation, Control, and Stabilization of Waves from the Boundary Claude Bardos, Gilles Lebeau, and Jeffrey Rauch Exact Boundary Controllability of the Wave Equation as the Limit of Internal Controllability Caroline Fabre A Generalized Estimate of the Number of Zeros for Solutions of a Class of Linear Differential Equations A. V. Dmitruk A Dirichlet Boundary Control Problem for the Strongly Damped Wave Equation Francesca Bucci Controllability of l2 Systems Fabio Fagnani and Jan C. Willems Algebraic Differential Equations and Rational Control Systems Yuan Wang and Eduardo D. Sontag Optimal Switching Among Several Brownian Motions Robert J. Vanderbei Approximation in Control of Thermoelastic Systems J. S. Gibson, I. G. Rosen, and G. Tao On Multivariate Robust Stability Charles K. Chui and H. N. Mhaskar Rate of Convergence of Recursive Estimators Laszlo Gerencser Singularly Perturbed Optimal Control Problems Vladmir Gaitsgory ------------------------------ From: SIAM Date: Wed, 20 May 92 14:42:42 EST Subject: Contents: SIAM Scientific and Statistical Computing SIAM Journal on Scientific and Statistical Computing September 1992 Volume 13, Number 5 CONTENTS Simulation and Approximation of Stochastic Processes by Spline Functions Michael Weba One-Stage Parallel Methods for the Numerical Solution of Ordinary Differential Equations H. W. Tam Two-Stage Parallel Methods for the Numerical Solution of Ordinary Differential Equations H. W. Tam A Comparison of Three Mixed Methods for the Time-Dependent Maxwell's Equations Peter Monk Adaptive Approximation by Piecewise Linear Polynomials on Triangulations of Subsets of Scattered Data Shmuel Rippa The Modifed Truncated SVD Method for Regularization in General Form Per Christian Hansen, Takashi Sekhii, and Hiromoto Shibahashi Highly Parallel Sparse Cholesky Factorization John R. Gilbert and Robert Schreiber Parallel Block-Partitioning of Truncated Newton for Nonlinear Network Optimization Stavros A. Zenios and Mustafa C. Pinar New Branch-and-Bound Rules for Linear Bilevel Programming Pierre Hansen, Brigitte Jaumard, and Gilles Savard A Family of Block Preconditioners for Block Systems Raymond H. Chan and Xiao-Qing Jin Efficient Solution of Parabolic Equations by Krylov Approximation Methods E. Gallopoulos and Y. Saad ------------------------------ From: SIAM Date: Thu, 21 May 92 10:32:48 EST Subject: Contents: SIAM Mathematical Analysis Contents SIAM J. Math. Anal. September 1992, Vol. 23, No. 5 Quasi-Convex Integrands and Lower Semicontinuity in L1 Irene Fonseca and Stefan Muller Stability in Obstacle Problems for the von Karman Plate E. Miersemann and H. D. Mittelmann On Asymptotics of Solutions of Elliptic Mixed Boundary Value Problems of Second-Order in Domains with Vanishing Edges Jacek Banasiak Abrikosov's Vortices in the Critical Coupling Sheng Wang and Yisong Yang Existence and Nonexistence of Solitary Wave Solutions to Higher-Order Model Evolution Equations Satyanad Kichenassamy and Peter J. Olver Sobolev Space Methods for Dual Integral Equations in Axialsymmetric Screen Problems F. Penzel Energy Inequalities for Integro-Partial Differential Equations with Riemann-Liouville Integrals Yasuhiro Fujita The Generalized Riemann Problem for the Motion of Elastic Strings Li Ta-Tsien, D. Serre, and Zhang Hao Dimensionality of Invariant Sets for Nonautonomous Processes Tepper L. Gill and W. W. Zachary Chaotic Dynamics of Quasi-Periodically Forced Oscillators Detected by Melnikov's Method Kazuyuki Yagasaki Homoclinic Bifurcation to a Transitive Attractor of Lorenz Type, II Clark Robinson Singular Perturbations of Homoclinic Orbits in R4 Wiktor Eckhaus Unfolding a Point of Degenerate Hopf Bifurcation in an Enzyme-Catalyzed Reaction Model Brian Hassard and Katie Jiang Some Properties of the First Eigenvalue of the Laplace Operator on the Spherical Bands in S2 Chao-Liang Shen and Chung-Tsun Shieh Superresolution Via Sparsity Constraints David L. Donoho Halfway Points W. A. Beyer and Blair Swartz Rotation Invariant Separable Functions are Gaussian PL. Kannappan and P. K. Sahoo Global Linear Independence and Finitely Supported Dual Basis Kang Zhao Localized Galerkin Estimates for Boundary Integral Equations on Lipschitz Domains V. Adolfsson, M. Goldberg, B. Jawerth, and H. Lennerstad ------------------------------ End of NA Digest ************************** -------