Subject: NA Digest, V. 95, # 35 NA Digest Sunday, September 3, 1995 Volume 95 : Issue 35 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: NA Digest Calendar Address Change for Chunyang He Errata list, Fundamentals of Matrix Computations New Book, Advanced Scientific Fortran Parallel Tridiagonal Matrix Solver Inviting Feedback on Parallel BLAS WWW-page on Mesh Generation METIS, Unstructured Graph Partitioning Software International Linear Algebra Society Prize 1996 Copper Mountain Conference Southeastern Conference on Theoretical and Applied Mechanics Workshop on Eigenvalues and Stability at CERFACS CTC Symposium: Protein Structure and Folding Symposium on Matrix Analysis & Applications Workshop in Bulgaria ASME Fluids Engineering Division Summer Meeting Computer Simulation of Aircraft and Engine Icing Contents, Numerical Algorithms Contents, SIAM Optimization Contents, Numerische Mathematik Contents, Numerische Mathematik 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: NA Digest Date: Sun Sep 3 08:32:55 EDT 1995 Subject: NA Digest Calendar NA Digest Calendar Date Topic Place NA Digest # Sep. 5-10 Neural Networks and Neurocontrol Quintana Roo, Mexico 21 Sep. 5-14 Computing Techniques in Physics Skalsky dvur, Czech. 08 Sep. 12-15 Parallel Computing in Russia St.-Petersburg, Russia 45 Sep. 17-21 Acoustics of Submerged Structures Boston, MA 94:22 Sep. 18-22 European Conference on Numerical Math. Paris, France 18 Sep. 18-22 High Energy Physics Rio de Janeiro, Brazil 23 Sep. 20 Scottish Computational Maths Symposium Edinburgh, Scotland 33 Sep. 22 Aircraft and Engine Icing Montreal, Canada 35 Sep. 23 Pacific NorthWest Numerical Analysis Bellingham, WA 15 Sep. 25-28 Computer Methods and Water Resources Beirut, Lebanon 21 Sep. 26-29 Scientific Computing, Validated Numerics Wuppertal, Germany 16 Sep. 26... Cerfacs Linear Algebra Year Toulouse, France 15 Sep. 26-29 CERFACS Direct Methods Workshop Toulouse, France 30 Sep. 27-30 Mathematical Tools in Metrology Oxford, UK 51 Oct. 9-15 Cubature Formulae Krasnoyarsk, Russia 08 Oct. 10-11 Protein Structure and Folding Ithaca, NY 35 Oct. 10-12 Multigrid Tutorial Rehovot, Israel 27 Oct. 10-12 Multigrid and Molecular Dynamics Rehovot, Israel 32 Oct. 13-14 Differential Equations Raleight, NC 29 Oct. 13-14 Matrix Analysis & Applications Kalamazoo, MI 35 Oct. 15-19 Parallel Algorithms Wuhan, China 08 Oct. 16-17 Meshing Roundtable Albuquerque, NM 19 Oct. 16-18 1995 MATLAB Conference Cambridge, MA 12 Oct. 17-20 Eigenvalues and Stability Toulouse, France 35 Oct. 20-22 South-Central Student Conference Houston, TX 20 Oct. 23-26 SIAM Annual Meeting Charlotte, NC 05 Oct. 23-26 Parallel Programming on the IBM SP Ithaca, NY 34 Nov. 1- 4 Complementarity Problems Baltimore, MD 05 Nov. 6- 9 Geometric Design Nashville, TN 04 Nov. 12-17 Semiconductor Device Modeling San Francisco, CA 20 Nov. 15-17 Simulation of Devices and Technologies Kruger, South Africa 01 Nov. 19-22 Pure and Applied Mathematics Isa Town, Bahrain 94:38 Dec. 8 Runge-Kutta Centenial Amsterdam, Netherlands 27 Dec. 10-14 Global Optimization Szeged, Hungary 26 Dec. 14-16 Dynamical Systems/Numerical Analysis Atlanta, GA 31 Dec. 14-20 Winter School on Iterative Methods Hong Kong 09 Dec. 16-19 Geophysical Inverse Problems Yosemite, CA 19 1996 Jan. 19-21 Boundary Elements Kiel, Germany 20 Jan. 28-30 Discrete Algorithms Atlanta, GA 25 Feb. 12-14 Network Optimization Problems Gainesville, FL 94:47 Feb. 12-15 Computational Differentiation Santa Fe, NM 29 Mar. 4- 6 Numerical Combustion New Orleans, LA 34 Apr. 1- 4 State of the Art in Numerical Analysis York, England 06 Apr. 9-11 Real Numbers and Computers Marseille, France 26 Apr. 9-13 Copper Mountain Conference Copper Mountain, CO 35 Apr. 14-16 Theoretical and Applied Mechanics Tuscaloosa, AL 35 May 19-23 Computational Fluid Dynamics Freiburg, Germany 30 May 20-22 SIAM Conference on Optimization Victoria, BC, Canada 26 May 20-23 Parallel CFD Capri, Italy 34 May 21-24 Graphics Interface Conference Toronto, Canada 18 June 3- 8 Domain Decomposition Bergen, Norway 28 June 10-15 Honor Lax and Nirenberg Venice, Italy 29 June 13-15 Algebraic Multilevel Iteration Methods Nijmegen, Netherlands 11 June 17-20 SIAM Conference on Discrete Mathematics Baltimore, MD 29 June 17-20 Integral Methods in Science and Engin. Oulu, Finland 24 June 17-21 Householder XIII Symposium Pontresina,Switzerland 31 June 20-21 Mitrinovic Memorial Conference Belgrade, Serbia 26 June 24-27 Numerical Analysis and Applications Russe, Bulgaria 35 June 24-28 Networks and Systems Saint Louis, MO 27 July 7-11 ASME Fluids Engineering Division San Diego, CA 35 July 8-12 Prague Mathematical Conference Prague, Czech Rep. 03 July 8-12 Quality of Numerical Software Oxford, England 19 July 15-19 Computational Mechanics Miskolc, Hungary 21 July 22-27 Summer Seminar on Plates and Shells Quebec City, Canada 26 July 27-30 Conference Honoring Mike Powell Cambridge, England 94:48 Aug. 25-31 Congress Theor. & Appl. Mechanics Kyoto, Japan 94:46 Sep. 2- 5 Nonlinear Programming Beijing, China 18 Sep. 9-13 "ECCOMAS 96" Paris, France 23 Sep. 9-14 Ill-Posed Problems Moscow, Russia 23 Nov. 6- 8 Innovative Time Integrators Amsterdam, Netherlands 31 The url for the Netlib Conferences Database is : http://www.netlib.org/confdb/Conferences.html ------------------------------ From: Chunyang He Date: Mon, 28 Aug 1995 16:45:11 -0500 (CDT) Subject: Address Change for Chunyang He Hi, I will visit the department of mathematics, University of Kansas in the next two years, so my new address is Dr. Chunyang He Dept. of Mathematics University of Kansas Snow Hall 405 Lawrence, 66045 Tel: (913) 864-4055 Email: chunyang@math.ukans.edu ------------------------------ From: David Watkins Date: Tue, 29 Aug 95 09:31:39 -0700 Subject: Errata list, Fundamentals of Matrix Computations As the Fall semester gets underway, I would like to remind you that a list of errata for my book David S. Watkins Fundamentals of Matrix Computations John Wiley, 1991 is available by anonymous ftp. Just ftp mossyrock.amath.washington.edu, cd pub/watkins, and get fmcerrata.ps.gz. Regretably I have not yet found time to put it on www. Maybe next year. Regards, David Watkins ------------------------------ From: David Wille Date: Wed, 30 Aug 1995 17:19:55 METDST Subject: New Book, Advanced Scientific Fortran Dear readers, following my successful recent enquiries over NA-net, can I now announce a book "Advanced Scientific Fortran" David R. Wille ISBN 0-471-95383-0 now published by John Wiley and Sons Ltd. Aimed at the general numerical community as a whole, it seeks to provide a stepping stone to better, more efficient and more portable programming for readers who already have a basic knowledge of Fortran. Topics covered include programming style, portability, arrays, memory management, the BLAS and LAPACK, and code optimisation. Also included are NAG, High Performance Fortran and an extensive introduction to Fortran 90. For further information, please contact me (na.wille) over na-net, David R. Wille na.wille@na-net.ornl.gov Mathematical Applications bwilld@chbs.ciba.com Ciba-Geigy AG CH-4002 Basel tel: + 41 61 69 74114 Switzerland fax: + 41 61 69 78973 ------------------------------ From: Saleet Jafri Date: Wed, 30 Aug 1995 09:16:03 -0400 Subject: Parallel Tridiagonal Matrix Solver I am looking for a fast parallel tridiagonal matrix solver to solve the system Ax=b where A is tridiagonal and x and b are vectors. I want to use this to solve systems of reaction diffusion equations (parabolic PDE's). Do you know if any source code exists for the partition method of Wang (or improvements) or the cyclic decompostion method? Which method is likely to be more efficient (I will be running my code on a SGI Power Challenge)? The parallel versions of the tridiagonal matrix in the SG libraries are quite slow (slower that the code in numerical recipes). Thanks. Saleet Jafri Department of Biomedical Engineering The Johns Hopkins University School of Medicine Rm 411 Traylor Research Building 720 Rutland Ave Baltimore, MD 21205 410-550-5091 jafri@bme.jhu.edu ------------------------------ From: The ScaLAPACK Team Date: Thu, 31 Aug 1995 11:33:14 -0400 Subject: Inviting Feedback on Parallel BLAS We are inviting feedback from the user community on a set of Parallel BLAS we have put together for ScaLAPACK. We would greatly appreciate your comments on LAPACK Working Note 100 "A Proposal for a Set of Parallel Basic Linear Algebra Subprograms". This working note is available via http://www.netlib.org/lapack/lawns/index.html and outlines the design issues of the PBLAS. Please direct all comments/suggestions to scalapack@cs.utk.edu. Regards, The ScaLAPACK team ------------------------------ From: Robert Schneiders Date: Thu, 31 Aug 95 17:27:01 +0200 Subject: WWW-page on Mesh Generation Hi, The new release of a page with information on finite element mesh generation can be found on: http://www-users.informatik.rwth-aachen.de/~roberts/meshgeneration.html It contains new information on people, research groups, conferences, literature etc. All comments and pointers on other online information are welcome. Robert Schneiders Lehrstuhl fuer angewandte Mathematik insb. Informatik RWTH Aachen Ahornstr. 55 52056 Aachen Germany email: robert@feanor.informatik.rwth-aachen.de WWW: http://www-users.informatik.rwth-aachen.de/~roberts/ Tel.: +241-804558 Fax: +241-8888215 ------------------------------ From: George Karypis Date: Sun, 27 Aug 1995 22:46:20 -0500 (CDT) Subject: METIS, Unstructured Graph Partitioning Software METIS: Unstructured Graph Partitioning and Sparse Matrix Ordering System Release 2.0 of METIS is now available. We would like to announce the release of version 2.0 of the METIS package for partitioning unstructred graphs (such as unstructured finite element meshes) and for producing fill reducing orderings of sparse matrices. METIS 2.0 contains a number of changes over METIS 1.0. The major changes are the following: * A new faster k-way partitioning algorithm has been implemented that produces good partitions, and it is up to 5 times faster the recursive bisection algorithm used in version 1.0. * The algorithms have been extended to handle non-power of 2 partitions. * A stand-alone library is provided to interface with the partitioning and ordering algorithms of METIS. * A number of modifications to better handle weighted graphs. * Speed improvements, particularly in the ordering code. METIS 2.0 is about 10% to 15% faster than version 1.0. * Better memory management. Overview of METIS Graph partitioning has extensive applications in many areas, including scientific computing, VLSI design, and task scheduling. The problem is to partition the vertices of a graph in k roughly equal parts, such that the number of edges connecting vertices in different parts is minimized. Graph partitioning is of particular importance in finite element computations on parallel computers, since a good partition significantly reduces the amount of communication, increasing the performance. Graph partitioning algorithms are also used to compute orderings for sparse matrices, in order to minimize the amount of fill and to increase the concurrency that can be exploited during parallel direct factorization. METIS is a set of programs that implement various graph partitioning algorithms that are based on the multilevel paradigm. The advantages of METIS compared to other similar packages are the following: - Provides high quality partitions! The partitions produced by METIS are consistently 10% to 50% better than those produced by spectral partitioning algorithms, and 5% to 15% better than those produced by Chaco multilevel. - It is extremely fast! METIS is 20 to 160 times faster than multilevel spectral bisection, and 5 to 30 times faster than Chaco multilevel, for a wide variety of a graphs. Graphs with over 500,000 vertices can be partitioned in 256 parts, in under a minute on scientific workstations. The run time of METIS is comparable to (or even smaller than) the run time of geometric partitioning algorithms that often produce much worse partitions. - Provides low fill orderings! The orderings produced by METIS are significantly better than those produced by multiple minimum degree, particularly for large finite element graphs. Furthermore, unlike multiple minimum degree, the elimination trees produced by METIS are suited for parallel direct factorization. Obtaining METIS METIS is freely distributed. Information on how to get the source code is available on WWW at URL: http://www.cs.umn.edu/~karypis/metis/metis.html Alternatively, METIS can be obtained via anonymous ftp from ftp.cs.umn.edu/dept/users/kumar/metis/metis-2.0.tar Papers describing and analyzing the various algorithms implemented by METIS can be retrieved via WWW from: http://www.cs.umn.edu/users/kumar/papers METIS has been written by George Karypis and Vipin Kumar, at the Computer Science Department of the University of Minnesota. If you have any questions or problems obtaining METIS, send email to karypis@cs.umn.edu. George Karypis email: karypis@cs.umn.edu University of Minnesota, URL: http://www.cs.umn.edu/~karypis ------------------------------ From: Daniel Hershkowitz Date: Sun, 27 Aug 1995 10:59:09 +0300 (EET DST) Subject: International Linear Algebra Society Prize ILAS PRIZE The Hans Schneider Prize in Linear Algebra The Hans Schneider Prize in Linear Algebra is awarded by the International Linear Algebra Society (ILAS) for research contributions and achievements at the highest level in Linear Algebra. The Prize may be awarded for an outstanding scientific achievement or for lifetime contribution. The Prize is awarded every three years at an appropriate ILAS meeting, as decided upon by the ILAS Executive Board. In any year in which a Prize is awarded, there may be more than one recipient, within the discretion of the Board. The first prize was awarded in 1993 to Miroslav Fiedler, Shmuel Friedland and Israel Gohberg. Procedure for determining the winner A Prize Committee is established by the ILAS President upon the recommendation of the ILAS Executive Board. The Committee solicits nominations from members of the linear algebra community of people of outstanding achievement in the subject and the Committee makes recommendations to the ILAS Executive Board, which then makes the award. (There shall be no restrictions on whom shall receive the Prize based on sex, race, national origin, age or the time since the recipient took his or her last academic degree). The recipient is notified at least two months prior to the ILAS meeting at which the Prize is to be presented and is also invited to give a talk at that meeting. Nature of the Prize The Prize consists of a plaque and a certificate containing the citation. The Executive Board may also decide to make a cash award to the recipient and/or make a contribution towards the expenses incurred in attending the award ceremony. Funding The funding for the Prize comes from the interest accruing on a large donation made to ILAS by Hans Schneider and a number of small contributions from other people. Next (second) Award The second Prize will be awarded at the ILAS conference in Chemnitz, Germany, in August 1993. The Prize Committee consists of: Daniel Hershkowitz (chairman) Richard A. Brualdi Shmuel Friedland Thomas J. Laffey Peter Lancaster Hans Schneider (ILAS President, ex-officio). Nominations Nominations are now being solicited from members of ILAS and the linear algebra community in general of distinguished individuals judged worthy of consideration for the Prize. In nominating a person, the nominator should include a brief biographical sketch together with a statement explaining why the nominee is considered worthy of the Prize. The nominator should include references to the publications or other contributions of the nominee which are considered most significant in making this assessment. Nominations should be sent before October 20, 1995, to Daniel Hershkowitz Mathematics Department Technion Haifa 32000 Israel e-mail: hershkow@tx.technion.ac.il | ------------------------------ From: Catherine Rachwalski Date: Wed, 30 Aug 1995 08:30:38 -0600 Subject: 1996 Copper Mountain Conference The dates have been set for the 1996 Copper Mountain Conference on Iterative Methods. The conference will be held in Copper Mountain, Colorado on April 9-13, 1996. A full brochure announcement can be accessed by e-mail to: cm96info@boulder.colorado.edu This will be available after September 6th. ------------------------------ From: Howard Wilson Date: Tue, 29 Aug 95 13:34:59 CDT Subject: Southeastern Conference on Theoretical and Applied Mechanics SECTAM XVIII EIGHTEENTH SOUTHEASTERN CONFERENCE ON THEORETICAL AND APPLIED MECHANICS April 14 - 16, 1996 TUSCALOOSA, ALABAMA Original papers are solicited in all areas of theoretical and applied mechanics and related topics. Papers are especially sought in the areas of biomechanics and penetration/impact dynamics in which symposia are planned. If researchers would like to propose additional symposia in other areas, please contact Howard Wilson. Research results can be submitted either as an abstract or a full-length paper. Only full-length papers will be published in the hardback proceedings of the conference. Both abstracts and full-length papers will be reviewed. Accepted abstracts and full- length papers will be presented at the conference. There is also a student paper competition. Student papers must be authored by students only. Mail three copies of full-length papers or abstracts by September 30, 1995 to: Howard B. Wilson, Editorial Committee Chair, SECTAM XVIII Department of Engineering Science and Mechanics University of Alabama Box 870278 Tuscaloosa, AL 35487-0278 For general information, please contact: Ms. Patty Stewart, SECTAM XVIII University of Alabama Box 870278 Tuscaloosa, AL 35487-0278 Phone: (205) 348-7251 FAX: (205) 348-7240 email: mhdept@ua1vm.ua.edu World Wide Web: http://hamton.eng.ua.edu/college/orgs/esm/sectam.html ------------------------------ From: Francoise Chatelin Date: Wed, 30 Aug 1995 14:32:29 +0200 Subject: Workshop on Eigenvalues and Stability at CERFACS CERFACS International Linear Algebra Year...Eigenvalues and Stability Workshop As announced in an earlier message to the NA-digest [Volume 95, Issue 15], CERFACS in Toulouse (France) is organizing the International Linear Algebra Year (ILAY) from September 1, 1995 to September 1, 1996. Please find below detailed information about the workshop on Eigenvalues and Stability that will be held this October. It is the second of four workshops that will be held during the Year. Note that we have extended the pre-registration deadline for this workshop by two weeks until SEPTEMBER 15. ILAY WORKSHOP ON EIGENVALUES DATE: October 17-20, 1995 PROGRAMME: [There may be some minor changes to the order of the talks and the titles for each day are for guidance only]. Tuesday October 17: Tutorial / industrially oriented day * J.-C. Dunyach (Aerospatiale, France) Title to be announced * F. Chaitin-Chatelin (Univ. Paris IX Dauphine and CERFACS, France) How safe are computer simulations in practice ? * J. Demmel (Univ. of Berkeley, USA) Recent progress in fast and accurate eigenroutines * J. Lewis (Boeing, USA) Title to be announced * P. Trouve (Thomson-CSF, France) Title to be announced * L. N. Trefethen (Cornell Univ., USA) When non-normality meets nonlinearity Wednesday October 18: Unsymmetric eigenproblems * I. Ipsen (North Carolina State Univ., USA) Computing an eigenvector by inverse iteration * C. Meyer (North Carolina State Univ., USA) Aggregation methods for nearly uncoupled systems * A. Edelman (MIT, USA) Title to be announced * J. Scott (RAL, United Kingdom) An evaluation of software for solving large sparse unsymmetric eigenvalue problems * V. Toumazou (CERFACS, France) Parallel spectral portraits * S. Gratton (CERFACS, France) More condition numbers in Linear Algebra * G. Strang (MIT, USA) Eigenvalues of Toeplitz matrices with 1 x 2 blocks Thursday October 19: Symmetric eigenproblems * B. N. Parlett (Univ. of Berkeley, USA) Title to be announced * G. Sleijpen (Univ. of Utrecht, Netherlands) The Jacobi-Davidson method for eigenvalue and generalized eigenvalue problems * Y. Saad (Univ. of Minnesota, USA) Solution of large eigenvalue problems in electronic structure calculations * Afternoon free for informal discussions Friday October 20: Krylov based methods * D. Sorensen (Rice Univ., USA) Implicitly Restarted Arnoldi/Lanczos Methods for Large Scale Eigenvalue Problems * J. Cullum (IBM, USA) Arnoldi versus nonsymmetric Lanczos algorithms for matrix eigenvalue problems * Z. Strakos (Acad. of Sciences of Prague, Czech Republic) Eigenvalues and convergence of Krylov space methods * B. Kagstrom (Univ. of Umea, Sweden) Title to be announced * V. Simoncini (IMGA-CNR, Modena, Italy) Ritz and pseudo-Ritz values using matrix polynomials * N. J. Higham (Univ. of Manchester, United Kingdom) Rounding errors in eigenvalue computations Poster session : * T. Cao-Huu (Harvard, USA) Parameter estimation with singular value decomposition in tomography * M. Bruehl (Universitaet Karlsruhe, Germany) A curve tracing algorithm for computing the pseudospectrum * J.-L. Fattebert (EPFL - Lausanne, Switzerland) An inverse power method using multigrid to solve an eigenvalue problem in electronic structure calculation * N. Martins (CEPEL, Brazil) An advanced subspace iteration method incorporating multiple moving-shifts and Mobius transforms * K. Meerbergen (K.U. Leuven, Belgium) Shift-invert Arnoldi in practice The workshop will be held at the UNESCO Centre in Toulouse. Because of support, we are able to keep the cost to 1500 FFR (for registration, documentation, lunches, tea and coffee) for the four-day workshop, with a reduction to 1000 FFR for full-time students, and a fee of 3000 FFR for non-academics. Reduced price accommodation is available at UNESCO and a limited amount of very cheap accommodation is available at the meteo residences near the CERFACS building. Up-to-date information on this workshop (including the abstracts of the talks, registration forms, etc.) can be found through the WWW page: http://www.cerfacs.fr/~wlay/LAY/eigen.html Up-to-date information on the other ILAY workshops and the visitor programme can be obtained through the ILAY home page: http://www.cerfacs.fr/~wlay/LAY/lay.html Please contact wlay@cerfacs.fr if you wish to receive additional information. ------------------------------ From: Jeanne Butler Date: Wed, 30 Aug 1995 13:51:57 -0400 Subject: CTC Symposium: Protein Structure and Folding CORNELL THEORY CENTER SYMPOSIUM "PROTEIN STRUCTURE AND FOLDING" OCTOBER 10 -11, 1995 700 CLARK HALL CORNELL UNIVERSITY CAMPUS For detailed announcement and/or more information: donna@tc.cornell.edu -or- http://www.tc.cornell.edu/Events/symp.html ------------------------------ From: Nil Mackey Date: Fri, 1 Sep 1995 07:28:40 -0400 Subject: Symposium on Matrix Analysis & Applications WESTERN MICHIGAN UNIVERSITY Kalamazoo, MI Third Symposium on MATRIX ANALYSIS & APPLICATIONS: A LOOK AT RECENT DEVELOPMENTS October 13 -- 14, 1995 Registration Deadline: September 20, 1995 Principal Speakers: Richard Brualdi, University of Wisconsin, "Majorization and Doubly Stochastic Matrices" P. J. Eberlein, SUNY at Buffalo, "On the Importance of Being Normal" Roger A. Horn, University of Utah, "Hadamard Products, Unitarily Invariant Norms, and Perturbation Bounds for the Polar Decomposition" Charles R. Johnson, College of William & Mary, "Matrix Completion Theory" G. W. Stewart, University of Maryland, "Schur Complements and Spectral Decompositions, or How to Compute Eigenvalues with Gaussian Elimination" Invited and Contributed Speakers include: Sergey Belyi, University of South Florida, "System with Unbounded Operators and J-contractive Operator Valued Functions in the Half Plane" Kenneth Driessel, Iowa State University, "On the Geometry of an Isospectral Surface" Zlatko Drmac, University of Colorado at Boulder, "Relative Eigenvalue Perturbations of Diagonalizable Matrices" Vyacheslav Girko, Bowling Green State University, "The Elliptic Law: Ten Years Later" Michael Grady, Georgia State University, "The Geometry of an Interchange" Richard Hill, Michigan State University, "A Survey of Eigenvalue Interlacing Results" Philip Hsieh, Western Michigan University, "Construction of a Fundamental Matrix Solution at a Singular Point of the First Kind by Means of the S - N Decomposition of Matrices" Wenchao Huang, University of Wisconsin-Madison, "Stability of Polytopes and Cones of Matrices" Michael Kinyon,Indiana University South Bend, "Algebraic structures arising from the ER Decomposition in SU(2)" Michael Lundquist, Brigham Young University, "A Family of Inequalities Related to the Permanental Dominance Conjecture" Roy Mathias, College of William and Mary, "Eigenvectors of Graded Positive Definite Matrices" Julio Moro, Courant Institute, New York and Universidad Complutense, Madrid, "On Lidskii's Perturbation Theory for Eigenvalues with Arbitrary Jordan Structure" David Stanford, College of William and Mary, "The Minimum Positive Determinant of Interger Matrices with Constant Row and Column Sums" Allen Schwenk, Western Michigan University, "Eigenvalues of Various Subgraphs of the possible Moore graph of order 3250" Eric York, University of Notre Dame, "Polynomial Matrices Over Finite Fields and Their Relations to Coding Theory" Preceding the symposium, at 4pm on Thursday, 12 October 1995, will be a University Visiting Scholar lecture by Charles R. Johnson entitled "Generalization of the Notion of Scalar Positivity to Matrices". A banquet is planned for Friday evening. After dinner speaker: Roger Horn, University of Utah Organizing Committee: Yousef Alavi, John Petro and Niloufer Mackey Department of Mathematics and Statistics Western Michigan University, Kalamazoo, MI 49008. For information on registration and accommodation contact Niloufer Mackey (616-387-4594). Email:nil.mackey@wmich.edu ------------------------------ From: Plamen Yalamov Date: Fri, 1 Sep 95 16:57:18 +0300 Subject: Workshop in Bulgaria FIRST WORKSHOP ON NUMERICAL ANALYSIS AND APPLICATIONS RUSSE, BULGARIA, JUNE 24-27, 1996 Organizers: University of Russe, Association of Bulgarian Mathematicians - Russe Co-organizers: Institute of Mathematics and Center for Informatics and Information Technologies of the Bulgarian Academy of Sciences, Technical University of Gabrovo, Technical University of Sofia Traditionally every 4 years a Conference on Numerical Analysis and Applications is organized in Bulgaria. The present workshop is meant to support this tradition and to serve as an intermediate meeting between these conferences. We would like to give an opportunity for mathematicians and applied scientists to discuss topics of common interest. The workshop will have three tracks: 1. Numerical linear algebra. 2. Numerical methods for differential equations. 3. Numerical modelling. Preliminary list of Invited Speakers: R. Bisseling (Netherlands), L. Brugnano (Italy), S. K. Godunov (Russia), A. Griewank (Germany), A. Hadjidimos (USA), S. Hammarling (UK), W. Hofmann (Germany), A. Karageorghis (Cyprus), Yu. A. Kuznetsov (Russia), R. Maerz (Germany), W. T. Pickering (UK), I. V. Puzynin (Russia), G. I. Shishkin (Russia), T. Szulc (Poland), E. E. Tyrtyshnikov (Russia), W. Varnhorn (Germany), V. V. Voevodin (Russia). Organizing committee: L. Vulkov (Chair), P. Yalamov (co-Chair), A. Andreev, P. Ivanova, I. Lirkov, M. Paprzycki, V. Pavlov, S. Romanova, T. Todorov, Z. Zlatev, K. Zlateva. We would like to invite all interested individuals to ORGANIZE a MINISYMPOSIUM related to one or more of the conference tracks. Please send a minisymposium abstract (approximately one page) and a list of 4-8 speakers to one of the addresses listed below. The deadline for proposals is December 1, 1995. A general call for papers and more details about the meeting will be provided in the future announcements. For more information, please, contact: Plamen Yalamov Marcin Paprzycki Dept. of Mathematics Dept. of Mathematics and CS University of Russe UTPB 7017 Russe Odessa, TX 79762 BULGARIA USA yalamov@iscbg.acad.bg paprzycki_m@gusher.pb.utexas.edu ------------------------------ From: Grant Guevremont Date: Fri, 1 Sep 1995 12:33:54 -0400 Subject: ASME Fluids Engineering Division Summer Meeting CALL FOR PAPERS SYMPOSIUM ON FINITE ELEMENT APPLICATIONS IN FLUID DYNAMICS V 1996 ASME Fluids Engineering Division Summer Meeting July 7-11, 1996 The Hyatt Regency San Diego, San Diego, California, USA Purpose and Scope: Contributions in all areas of fluid dynamics involving finite element methods are of interest. A preliminary organization of the sessions includes incompressible, compressible, laminar, turbulent, reacting and non-Newtonian flows, as well as industrial and multidisciplinary applications. Sponsored by: Coordinating Group for Computational Fluid Dynamics of the ASME Fluids Engineering Division. Organizers: Prof. Wagdi G. Habashi CERCA 5160 Decarie, suite 400 Montreal, Qc, Canada H3X 2H9 Phone: +1-514-369-5202 Fax: +1-514-369-3880 Email: habashiw@cfdlab.concordia.ca Dr. Michael S. Engelman Fluid Dynamics International Inc. Evanston, Illinois Dr. Manoranjan N. Dhaubhadel Ford Motor Company Dearborn, Michigan CALL FOR PAPERS SYMPOSIUM ON NUMERICAL DEVELOPMENTS IN CFD 1996 ASME Fluids Engineering Division Summer Meeting July 7-11, 1996 The Hyatt Regency San Diego, San Diego, California, USA Purpose and Scope: Topics include novel and enhanced numerical algorithms, solvers, advanced architecture computing, convergence acceleration and multidisciplinary coupling. Sponsored by: Coordinating Group for Computational Fluid Dynamics of the ASME Fluids Engineering Division. Organizers: Prof. Wagdi G. Habashi CERCA 5160 Decarie, suite 400 Montreal, Qc, Canada H3X 2H9 Phone: +1-514-369-5202 Fax: +1-514-369-3880 Email: habashiw@cfdlab.concordia.ca Dr. Manoranjan N. Dhaubhadel Ford Motor Company Dearborn, Michigan ------------------------------ From: Grant Guevremont Date: Fri, 1 Sep 1995 12:38:40 -0400 Subject: Computer Simulation of Aircraft and Engine Icing COMPUTER SIMULATION OF AIRCRAFT AND ENGINE ICING PHENOMENA A ONE-DAY COURSE AND WORKSHOP ORGANIZED BY CONCORDIA UNIVERSITY AND CERCA, MONTREAL, CANADA FRIDAY, SEPTEMBER 22, 1995 Aircraft taking off from or landing at airports and/or flying through clouds under adverse conditions may encounter the problem of ice formation on aircraft surfaces and critical engine components. This can jeopardize flight by increasing the weight, altering the aerodynamic performance, and directly affecting stability. While such problems have been studied and addressed for over half a century by icing tests at specialized facilities, more recently simulation by Computational Fluid Dynamics (CFD) has proven itself a low-cost, flexible and effective complementary tool for such studies. The current trend is to bring to bear the latest computational and simulation tools to understand and combat the icing problem. Such efforts have resulted in codes, made available to aircraft/engine manufacturers, airlines and regulatory agencies, on a national basis. We are seizing the opportunity of the meeting of the American Helicopter Society in Montreal to invite 3 prominent scientists in this area to speak of the efforts in their countries. The speakers are from NASA (USA), ONERA (France) and NIAR (National Institute of Aerospace Research, USA). This timely course should be of value to all involved in icing problems as it will illustrate the state-of-the-art in icing problems simulation. It is structured to be of equal interest to users of codes, operators of equipment and developers of methodology, such as: Aircraft manufacturers Engine manufacturers Airlines and aircraft operators De-icing and anti-icing specialists Icing tunnel scientists Flight simulator manufacturers Regulatory agencies Instructors: Dr. Mark Potapczuk, NASA-Lewis Research Center, Cleveland, USA Dr. Didier Guffond, ONERA, Chatillon-sous-Bagneux, France Prof. Ramesh Agarwal, Wichita State University and NIAR, USA Cost: $200 CAD, including course notes, coffee breaks, buffet lunch and taxes $75 CAD, for students Place: CERCA 5160 Decarie, suite 400 Montreal, Quebec, Canada H3X 2H9 Registration: By email: chantal@cerca.umontreal.ca, fax (1-514-369-3880) or phone: (1-514-369-5201) For more Information check the following Web page: http://www.cerca.umontreal.ca/~rick/CFD/icing.html ------------------------------ From: Baltzer Science Publishers Date: Mon, 28 Aug 1995 15:16:17 +0200 Subject: Contents, Numerical Algorithms CONTENTS NUMERICAL ALGORITHMS (ISSN 1017 1398). Volume 10, N0. 1-2, 1995. Editor-in-Chief: Claude Brezinski Preface pp. 1-12; G. Baszenski and F.-J. Delvos, Computational aspects of Boolean cubature pp. 13-26; B.C. Carlson, Numerical computation of real or complex elliptic integrals pp. 27-40; L. Gori and E. Santi, On the evaluation of Hilbert transforms by means of a particularclass of Turan quadrature rules pp. 41-50; D.B. Hunter, The evaluation of Legendre functions of the second kind pp. 51-68; A. Iserles and S.P. Norsett, Explicit representations of biorthogonal polynomials pp. 69-112; L. Lorentzen, Computation of limit periodic continued fractions. A survey pp. 113-126; G. Mastroianni, Generalized Christoffel functions and error of positive quadrature pp. 127-136; G.V. Milovanovic, Summation of series and Gaussian quadratures, II pp. 137-154; J.M. Montaner and M. Alfaro, On five-diagonal Toeplitz matrices and orthogonal polynomials on the unit circle pp. 155-166; M. Morandi Cecchi and E. Pirozzi, A recursive algorithm by the moments method to evaluate a class of numerical integrals over an infinite interval pp. 167-186; S.E. Notaris, Stieltjes polynomials and Gauss--Kronrod quadrature formulae for measures induced by Chebyshev polynomials pp. 187-202; K. Petras, Gaussian integration of Chebyshev polynomials and analytic functions ------------------------------ From: SIAM Date: Wed, 30 Aug 95 09:07:25 EST Subject: Contents, SIAM Optimization VOLUME 5, NUMBER 4, NOVEMBER 1955 CONTENTS Some Convergence Properties of the Modified Log Barrier Method for Linear Programming M. J. D. Powell Fast Interior Point Methods for Bipartite Matching Lov K. Grover Convergence of a Factorized Broyden-like Family for Nonlinear Least Squares Problems Hiroshi Yabe and Naokazu Yamaki Sequential Quadratic Programming with Penalization of the Displacement J. F. Bonnans and G. Launay Global Optimality Conditions and Their Geometric Interpretation for the Chemical and Phase Equilibrium Problem Y. Jiang, W. R. Smith, and G. R. Chapman The Molecule Problem: Exploiting Structure in Global Optimization Bruce Hendrickson An Information Global Optimization Algorithm with Local Tuning Yaroslav D. Sergeyev Potential Transformation Methods for Large-Scale Global Optimization Jack W. Rogers, Jr. and Robert A. Donnelly Existence and Regularity of Solutions to a Variational Problem of Mumford and Shah: A Constructive Approach Yang Wang ------------------------------ From: Angelika Binding Date: Thu, 31 Aug 1995 09:54:26 +0000 (N) Subject: Contents, Numerische Mathematik Contents Numerische Mathematik Volume 71 Number 03 (1995) Homeier-H-H-H. Determinantal representations for the J transformation. P 275. Hou-L-S. Turner-J-C. Analysis and finite element approximation of an optimal control problem in electrochemistry with current density controls. P 289. Li-Z. A numerical method for computing singular minimizers. P 317. Morton-K-W. Sueli-E. Evolution-Galerkin methods and their supraconvergence. P 331. Peherstorfer-F. Orthogonality of residual polynomials used in minimax polynomial preconditioning. P 357. Reusken-A. Fourier analysis of a robust multigrid method for convection-diffusion equations. P 365. Zenisek-A. The maximum angle condition in the finite element method for monotone problems with applications in magnetostatics. P 399. ------------------------------ From: Angelika Binding Date: Thu, 31 Aug 1995 09:54:26 +0000 (N) Subject: Contents, Numerische Mathematik Contents Numerische Mathematik Volume 71 Number 04 (1995) Achdou-Y. Kuznetsov-Y-A. Pironneau-O. Substructuring preconditioners for the FORMULA $Q_1$ /FORMULA mortar element method. P 419. Kang-F. Zai-jiu-S. Volume-preserving algorithms for source-free dynamical systems. P 451. Ghaddar-C. Maday-Y. Patera-A-T. Analysis of a part design procedure. P 465. Gottlieb-D. Shu-C-W. On the Gibbs phenomenon V: recovering exponential accuracy from collocation point values of a piecewise analytic function. P 511. Kroener-D. Noelle-S. Rokyta-M. Convergence of higher order upwind finite volume schemes on unstructured grids for scalar conservation laws in several space dimensions. P 527. ------------------------------ End of NA Digest ************************** -------