From na-net@patience.stanford.edu Sun Apr 15 15:58:02 1990 Received: from sparky.EPM.ORNL.GOV by cs.utk.edu with SMTP (5.61++/2.3-UTK) id AA00367; Sun, 15 Apr 90 15:57:46 -0400 Received: from msr.epm.ornl.gov by sparky.EPM.ORNL.GOV (4.1/1.34) id AA09269; Sun, 15 Apr 90 13:19:36 EST Received: from beauty.Stanford.EDU by msr.epm.ornl.gov (5.61/1.34) id AA17478; Sun, 15 Apr 90 14:18:22 -0400 Received: from patience.stanford.edu by beauty.stanford.edu (4.0/inc-1.5) id AA02494; Sun, 15 Apr 90 11:10:46 PDT Received: from bravery.stanford.edu by patience.stanford.edu (4.0/inc-1.5) id AA09955; Sun, 15 Apr 90 10:25:44 PDT Received: by bravery.stanford.edu (4.0/inc-1.5) id AA02621; Sun, 15 Apr 90 10:30:31 PDT Date: Sun, 15 Apr 90 10:30:31 PDT From: na-net@patience.stanford.edu Message-Id: <9004151730.AA02621@bravery.stanford.edu> Return-Path: Subject: NA-NET distribution message Maint-Path: maintainer@na-net.stanford.edu To: na-net@patience.stanford.edu Reply-To: na-net@patience.stanford.edu Comment: requests, comments or problems to nanet@na-net.stanford.edu Comment: submissions to na@na-net.stanford.edu Status: R NA Digest Sunday, April 15, 1990 Volume 90 : Issue 15 Today's Editor: Cleve Moler Today's Topics: Software in NA Teaching Temporary Address Change for Paul Saylor New Fax Number for Minnesota CS Department Software For Generalized Schur Special Colloqium by Smale at Columbia Meeting of Japan Information Processing Society Conference on Computational and Applied Mathematics, Sardinia Mathematical Modelling in Plasma Physics, Venice Nordic Workshop on Visualization ------------------------------------------------------- From: John Carroll <75003678%dcu.ie@Forsythe.Stanford.EDU> Date: Mon, 2 Apr 90 10:27 GMT Subject: Software in NA Teaching I am writing for any pointers which might help me in compiling material for a talk which I have been asked to give here in Dublin. The general thrust of the talk is concerned with the use of software in Numerical Analysis teaching. One immediately thinks of software libraries such as IMSL, NAG and NETLIB which are widely used in undergraduate NA teaching. But I would also like to present some good examples of using software in this way, NA syllabi which reflect this teaching approach, the kinds of hardware that are in current use (mainframe / microcomputer and graphics terminals), programming languages (FORTRAN, Pascal, Ada, Algol), NA textbooks dealing with the `software' approach, methods of assessment, etc. I would appreciate any advice that you can offer or information about members of the NA community who might be able to help. John Carroll Mathematical Sciences Dublin City University Dublin 9 Ireland ------------------------------ From: Paul Saylor Date: Sat, 14 Apr 90 07:24:46 -0500 Subject: Temporary Address Change for Paul Saylor Cindy and I will be in Zurich from April 19 to Sept. 1. My office address and e-address will be: Wissenschaftliches Rechnen ETH Zentrum CH-8092 Zuerich Switzerland phone : (01) 254-7435 Secretary: (01) 254-7211 e-mail: saylor@inf.ethz.ch Paul Saylor ------------------------------ From: Daniel Boley Date: Tue, 10 Apr 90 10:20:06 CDT Subject: New Fax Number for Minnesota CS Department The University of Minnesota Computer Science Dept has a new FAX number: 1-612-625-0572. The old number (1-612-625-4583) still applies for Electrical Engineering, which is right next door. Dan ------------------------------ From: Bo Kagstrom Date: Sat, 14 Apr 90 15:22:21 +0200 Subject: Software For Generalized Schur Software for generalized Schur decomposition of A-zB (regular or singular) A package of routines for computing the generalized Schur decomposition of A - zB (arbitrary regular or singular pencil) is now available on netlib. In order to receive the software you make the following request: send guptri from misc The package contains robust software with error bounds for computing a generalized upper triangular form (guptri) of an arbitrary pencil. The guptri decomposition is a generalization of the Schur decomposition of A - zI to matrix pencils A - zB and reveals the Kronecker structure of a singular pencil. A standard usage of the package is as follows: call guptri (...) Compute generalized Schur decomposition of singular A-zB. call reordr (...) Reorder the eigenvalues in specified order. call bound (...) Compute error bounds for selected eigenvalues call evalbd (...) and reducing subspaces. The following papers describe software, algorithms and error bounds used in the package: J. Demmel and B. Kagstrom, "The generalized Schur decomposition of an arbitrary pencil A - zB: robust software with error bounds and applications", Report UMINF-170.90, Institute of Information Processing, Univ. of Umea, S-901 87 UMEA, SWEDEN, January 1990 (submitted to ACM TOMS) J. Demmel and B. Kagstrom, "Accurate Solutions of Ill-posed Problems in Control Theory", SIAM J. Matrix Anal Appl, Vol 9, 1988, pp 126-145 J. Demmel and B. Kagstrom, "Stable Eigendecompositions of Matrix Pencils", Linear Algebra Applic., Vol 88/89, 1987, pp 137-186 J. Demmel and B. Kagstrom, "Stably Computing the Kronecker Structure and Reducing Subspaces of Singular pencils A-zB for Uncertain Data", in J. Cullum and R. Willoughby (eds), Large Scale Eigenvalue Problems, North Holland, 1986, pp 283-323 B. Kagstrom, "RGSVD - An Algorithm for Computing the Kronecker Structure and Reducing Subspaces of Singular Matrix Pencils", SIAM J. Sci. Stat. Comp., Vol 7, 1986, pp 185-211 Any comments or questions should be sent to: Bo Kagstrom Institute of Information Processing University of Umea S-901 87 Umea, Sweden email: na.kagstrom@na-net.stanford.edu or bokg@cs.umu.se or James Demmel Courant Institute New York University 215 Mercer Street New York, NY 10012, USA email: na.demmel@na-net.stanford.edu NOTE: Before a second generation (production code) of this package is developed we would like to obtain as much information from users as possible. THANK YOU IN ADVANCE! ------------------------------ From: Kerny McLaughlin Date: Sat, 14 Apr 1990 11:11:19 EDT Subject: Special Colloqium by Smale at Columbia SPECIAL COLUMBIA UNIVERSITY MATHEMATICS AND COMPUTER SCIENCE COLLOQUIUM Thursday, April 26 1:10 p.m. Columbia University 329 Pupin STEVE SMALE Mathematics Department University of California, Berkeley On the problem is P not equal NP? ------------------------------ From: David Kahaner Date: Wed, 11 Apr 90 17:18:07 +0900 Subject: Meeting of Japan Information Processing Society The largest meeting ever of the Japan Information Processing Society occurred last month. More than 1,000 papers were presented and the Proceedings fill three books. We have put together a list of all the papers, authors, and their organizations, arranged by topic. To the best of my knowledge this is the only such list available in English. The list fills about 70 printed pages, and the file is too long to conveniently send by email, but we will mail a copy to anyone who sends us their complete mailing address. Papers were presented in the following areas which may be of particular interest, as well as many other areas. Numerical analysis Neural nets Image Processing Expert systems Pattern recognition Graphic, image recognition Graphics, 3D procession Image processing systems TeX and scientific text processing Voice processing Parallel compilers Compilers Parallel processing languages Parallel processing operating systems O.S design Parallel language machines Parallel reasoning machines Dataflow machines Multiprocessing systems E-mail Multimedia voice processing ------------------------------ From: Giuseppe Rodriguez Date: Mon, 9 APR 90 13:31 N Subject: Conference on Computational and Applied Mathematics, Sardinia International Conference on Computational and Applied Mathematics Dipartimento di Matematica - Universita' di Cagliari 15-19 october 1990 Cagliari, Sardinia - Italy Purpose of the Conference. The conference will be structured with invited lectures aiming to give a perspective of mathematical methods related to definite applicative fields of present prominence. The Site. Sardinia is rich in archaeological remains. The "Nuraghi" are among the oldest and most significant ones. They are round stone towers of cyclopic dimension, dating back from the Middle Bronze Age to the Early Iron Age. In isolation on the top of hill, or grouped to form a sort of primitive villages, the Nuraghi were mainly used for defense and strategic activities. Outstanding nuragic villages are those of Barumini (Su Nuraxi), Abbasanta (Losa), Alghero (Palmavera) and Torralba (Santu Antine). The times of Carthaginian domination are also well represented. The Acropolis of Mount Sirai (Carbonia) and the towns of Karalis (Cagliari), Nora (Pula), Sulci (Sant'Antioco) and Tharros (Cabras) all date to that age. The towns survived till the roman domination, and hence they often exhibit an interesting superposition of Punic and Roman features. The late imperial Roman domination left is track too. The monumental ruins of Forum Traiani (now Fordongianus) and those of Turris Lybisonis (now Porto Torres) are the more important witnesses. Sardinia can be easily reached by sea and air. Many ferry lines link the island to the main land. There are daily direct flights connecting Cagliari with the main italian towns. From April to November various european charter companies provide weekly services. Invited Speakers. The following invited speakers have already confirmed their participation: A. Bellen Universita' di Trieste M. Bertero Universita' di Genova F. Brezzi Universita' di Pavia P. Colli Franzone Universita' di Pavia P. De Mottoni Universita' di Roma W. Gautschi University of Purdue, U.S.A. F. Gori Universita' di Roma J.T. Marti University of Zurich J.C. Mason RMCS Shrivenham, U.K. F. Natterer University of Munster D. Pagani Politecnico di Milano A. Quarteroni Politecnico di Milano E.R. Pike Great Malvern, U.K. T. Ruggeri Universita' di Bologna G. Talenti Universita' di Firenze V. Vasin U.S.S.R. Academy, Sverdlovsk F. Zirilli Universita' di Roma For more touristic and travel information please contact IMC Viale Trieste, 93 09123 Cagliari - Italy Tel. 39.70.273470 - 39.70.273249 Fax 39.70.273306 For further technical information please contact Prof. Sebastiano Seatzu Dipartimento di Matematica Viale Merello, 92 09123 Cagliari - Italy Tel. 39.70.2000404 Fax 39.70.2000467 or Dr. Giuseppe Rodriguez E-mail: GPPE @ VAXCA2 . INFN . IT ------------------------------ From: Reanto Spigler Date: Tue, 10 Apr 90 10:55:25 SET Subject: Mathematical Modelling in Plasma Physics, Venice ADVANCED SEMINAR ON MATHEMATICAL MODELLING IN PLASMA PHYSICS, June 18-30,1990, Venice,Italy. There will be three intensive,moderately advanced parallel Courses as follows 1. Marco BRAMBILLA,EURATOM,Max Planck Insitut fuer Plasmaphysik,Garching,FRG -" Wave Propagation in Plasmas", 2. Reinhard ILLNER,University of Victoria,Victoria,Canada -" Numerical Simulation of the Boltzmann equation", 3. Harold WEITZNER,Courant Institute of Mathematical Sciences,New York University,New York,U.S.A. -"Topics on Transport Theory in Fusion Plasmas". Send applications with a CV and a list of publications to Professor Reanto SPIGLER, Dipartimento di Metodi e Modelli Matematici, Universita' di Padova, Via Belzoni,7 - 35131 Padova (Italy) (phone 0039 49 831914 , fax 0039 49 831995 ,e-mail SPIGLER at IPDUNIV.Bitnet) For Hotel reservations,please contact immediately "Venezia Congressi",Dorsoduro 1056,30123 Venezia (Italy) (phone 0039 41 5228400, fax 0039 41 5238995) There will be a fee of 310 US $ ( 400 000 Italian Lire ) for the whole two- weeks Seminar. Some reductions will be made in some special cases. The Lectures will take place in a beautifully frescoed room at the Ateneo Veneto,Campo San Fantin 1897-30124 Venezia,in Venice downtown. Renato SPIGLER ------------------------------ From: Bo Kagstrom Date: Thu, 12 Apr 90 09:03 EDT Subject: Nordic Workshop on Visualization First announcement of The Nordic Workshop on Visualization and Analysis of Scientific and Technical Computations on High-Performance Computers Organizers: The first Nordic Workshop on Visualization in Scientific Computing is going to take place in Umeaa between the 25th and the 28th of September, 1990. The workshop is organized by Umea University and the SuperComputer Center North (SDCN) and is financed by the Nordic Council of Ministers. SIAM Nordic section supports the workshop. Topics: The workshop will cover areas like basic research in visualization, graphics tools in scientific computing, and the state-of-the-art use of visualization in Physics, Chemistry, Biotechnology, Medicine, Civil engineering etc. The following areas will be covered * Workstation-driven use of Supercomputers * Graphics-oriented programming environments * Interactive steering of simulations and calculations * Vectorized and parallelized algorithms for graphics and image processing * High performance architectures for graphics and visualization The workshop will include invited talks, contributed talks, poster sessions, demonstrations and some hands-on exercises. There will also be demonstrations of hardware and software from different vendors. The official language of the workskop is English. Invited speakers: So far thefollowing invited speakers have accepted our invitation: Martin Berggren Cornell National Supercomputer Facility, Center for Theory and Simulation in Science and Engineering Cornell University, Ithaca, USA Brian Collins IBM UK Scientific Centre, Winchester, UK Pirjo-Leena Forsstrom Center for Scientific Computing, CSC, Helsinki, Finland Robert Haber National Center for Supercomputer Applications (NCSA), Univ of Illinois, USA Per Kraulis Biomedical Center, Univ of Uppsala, Sweden Joergen Moth The Danish Computing Centre for Research and Education, UNI*C, Lyngby, Denmark Ake Nordlund Observatory of Copenhagen, Copenhagen, Denmark We have also invited speakers from CERN, Regnecentret - NTH/SINTEF Trondheim, Centre National Sud de Calcul CNUSC Montpellier and Arizona State University, Phoenix USA. Invitation for contributed talks and poster presentations: We invite you to submit an extended abstract for a con- tributed talk or a poster presentation. The abstract should summarize recent results in research in e.g. Tools and Methods for Computer Graphics and Visualization in Scientific Computing or Graphics Computing and Visualization in Scientific Computing with an emphasis on applications from Biology, Biotechnology, Chemistry, Physics, Mathematics, Medicine etc. Abstracts must be recieved by the 15-th of May 1990. Send the abstract by email or fax (see adresses below). We would like to know what kind of equipment is needed - overhead-projector, slide-projector, video/data-projector, workstation etc ? We have Sun 3-80, Sun Sparc-station 1, Apollo and IBM 6150 at the university. We are connected to a IBM 3090-600 J/VF-system via a 2Mb-link and we have on the university an Intel iPSC/2 hypercube with 64 nodes (16 with vector facility) and are about to aquire a shared-memory multi- processor system with advanced graphics and visualization facilities. Further information: The registration fee of 150 US$ is due September 1, 1990. This fee includes conference reception, conference dinner, lunches and coffee and a special social event. Accomodations are not covered by this fee. If you plan to attend the workshop and submit a paper for presentation please contact professor Bo Kagstrom (see below). If you plan to attend but will not submit a paper please contact Torbjoern Johansson (see below). Hotel rooms are preliminary booked for the workshop. There are regular flights from Stockholm to Umeaa every 70 minute. The final program of the workshop will be published later. Contact persons for the workshop: Torbjoern Johansson SDCN Umeaa University S-901 87 Umea Phone: +46-90166585 Email:tojo@biovax.umdc.umu.se Bo Kagstrom Dept of Computing Science Umeaa University S-901 87 Umea Phone: +46-90165419 Fax: +46-90166126 Email: bokg@biovax.umdc.umu.se ------------------------------ End of NA Digest ************************** -------