From na-net@na-net.stanford.edu Sun May 21 17:53:28 1989 Received: from beauty.stanford.edu by antares.mcs.anl.gov (4.0/SMI-DDN) id AA19640; Sun, 21 May 89 17:53:05 CDT Received: from patience.stanford.edu by beauty.stanford.edu (4.0/inc-1.5) id AA15341; Sun, 21 May 89 15:54:36 PDT Received: from bravery.stanford.edu by patience.stanford.edu (4.0/inc-1.5) id AA02999; Sun, 21 May 89 14:31:11 PDT Received: by bravery.stanford.edu (4.0/inc-1.5) id AA14603; Sun, 21 May 89 14:43:32 PDT Date: Sun, 21 May 89 14:43:32 PDT From: na-net@na-net.stanford.edu Message-Id: <8905212143.AA14603@bravery.stanford.edu> Return-Path: Subject: NA-NET distribution message Errors-To: nanet@na-net.stanford.edu Maint-Path: maintainer@na-net.stanford.edu To: na-net@na-net.stanford.edu Reply-To: na-net@na-net.stanford.edu Comment: requests, comments or problems to nanet@na-net.stanford.edu Comment: submissions to na@na-net.stanford.edu Comment: alternate address: na%na-net@score.stanford.edu Status: RO NA Digest Sunday, May 21, 1989 Volume 89 : Issue 20 Today's Editor: Cleve Moler Today's Topics: Clarification (London ODE Conference) Numerical Inversion of a Laplace Transform LAA Special Issue on Algebraic Linear Algebra Temporary Position in Chile Nijmegen Preconditioned Conjugate Gradient Conference Vacancies at RMCS, Shrivenham New Books from SIAM Complex Zeros of an Analytic Function Announcement for Pacific Northwest Region Position at Bergen Scientific Centre, Norway IBM Supercomputing Competition ------------------------------------------------------- From: Roland England Date: 15-MAY-1989 11:55:24 GMT Subject: Clarification (London ODE Conference) In two messages which appeared last week on this subject, my name was given as Ronald England. I wish to make it clear that this was, at least in one case, the result of an error on the part of the editor, and that my name is in fact Roland England. [Ed. note: My apologies --Cleve] Roland England R_ENGLAND@VAX.ACS.open.AC.UK Rengland@nsfnet-relay.ac.uk NA.rengland@na-net.stanford.edu ------------------------------ From: Stephanie Bodoff Date: 15 May 89 14:27:00 GMT Subject: Numerical Inversion of a Laplace Transform I would like to obtain (c or f77) source or (less preferable) an algorithm for performing numerical inversion of a Laplace Transform. Thanks in advance, Stephanie Bodoff Apollo Computer Inc. ARPA: bodoff@apollo.com (preferred) UUCP: ...{decwrl!decvax, mit-eddie, attunix}!apollo!bodoff USPS: Apollo Computer, 330 Billerica Rd. Chelmsford MA 01824 ------------------------------ From: Hans Schneider Date: Mon, 15 May 89 11:52:40 cdt Subject: LAA Special Issue on Algebraic Linear Algebra LINEAR ALGEBRA AND ITS APPLICATIONS Special issue on ALGEBRAIC LINEAR ALGEBRA This is to announce a special issue of Linear Algebra and its Applications entitled ALGEBRAIC LINEAR ALGEBRA. It will be devoted to the interaction between algebraic matrix theory and the rest of algebra. Examples of the types of papers we seek are: 1. Generalizations of classical matrix theory (such as module theory or linear algebra over rings) or the use of such generalizations to solve problems in classical linear algebra. 2. Use of algebraic linear algebra in coding theory, control theory, cryptography, group matrices, and other areas. 3. Extensions of algebraic linear algebra itself that have been suggested by such applications (e.g. new matrix problems). This issue is open to all and papers will be refereed in the usual way. The deadline for submission is August 1990, with expected publication approximately one year later. Authors should submit three copies of the manuscript (prepared according to the guidelines described in "Information for Authors" published in every issue of LAA) to one of the following special editors: Robert M. Guralnick Department of Mathematics University of Southern California Los Angeles, CA 90089-1113 email: guralnic@mtha.usc.edu William H. Gustafson Department of Mathematics Texas Tech University Lubbock, TX 79409 Lawrence S. Levy Department of Mathematics University of Wisconsin Madison, WI 53706 email: levy@math.wisc.edu ------------------------------ From: John R. Rice Date: Mon, 15 May 89 15:06:40 EST Subject: Temporary Position in Chile EXPERIENCED NUMERICAL ANALYST UNITED NATIONS PROJECT IN SANTIAGO, CHILE 3-4 MONTHS STARTING IN AUG. TO OCT., 1989 We are looking for a numerical analyst (ODE's and parabolic PDE's) to work for a project funded by the United Nations, and to collaborate with colleagues at the Department of Mathematics of Catholic University of Chile, Santiago, Chile. The appointment would be for a period of 3 to 4 month, starting between August and October 1989 (spring time). We pay a reasonable salary and traveling expenses for the selected candidate. Local computing facilities include a network of 6 Apollo workstations (one of which is an Apollo 10000 with 3 CPU's) dedicated to the project, and general university computing facilities (VAX-VMS). The position would be very suitable for someone in sabbatical leave. Interested persons please contact Airmail: Dr. Ivan Huerta Departamento dfe Matematicas Universidad Catolica de Chile Casilla 6177, Santiago 22 Chile. uucp-mail iph@juncal.puc.cl (not too reliable) Fax 52-2-5525698 (Area code country-city-phone number) ------------------------------ From: Victor Eijkhout Date: Tue, 16 May 89 10:41:44 MET Subject: Nijmegen Preconditioned Conjugate Gradient Conference CONFERENCE ON PRECONDITIONED CONJUGATE GRADIENT METHODS To celebrate the 13th, the 17th, 31st, and 37th birthdays of the Preconditioned Conjugate Gradient Method a conference will be held at the University of Nijmegen, the Netherlands, on June 19-21, 1989. Prior to the conference there will be a short course on PCG methods on June 15-17, 1989. Invited presentations wil be given by Robert Beauwens, Peter Deuflhard, Richard Ewing, Ivar Gustafsson, Lennart Johnson, David Kincaid, Ahmed Sameh, Henk van der Vorst, and Harry Yserentant. In addition there will be a number of contributed talks. The deadline for submitting abstracts (one to two pages) for contributed talks is May 26, 1989. Notification of acceptance will be given by June 1, 1989. Transportation For people flying to the Netherlands: Nijmegen is easily reached by train from the airports of Amsterdam, Brussels, Dusseldorf, and Frankfurt. These connections require changing trains once. The university can be reached by public transportation from the hotels in the city, and there are sufficient parking lots on the campus. Hotels The conference organisation has options on rooms in four hotels at reduced rates, Hotel Altea single room f100--f110 double room f145 Hotel Atlanta single room f70--f75 double room f110 Hotel Wienerhof single room f60--f65 double room f95 Hotel Rozenhof (located outside the city center, a 20 minutes walk to the university) double room f90 Prices include breakfast. A room will be reserved for you upon prepayment of the conference fee. You will receive confirmation of the reservation and information including a local area map. Payment In order to reserve a room at the reduced rates, your registration must reach us before May 26, and the prepayment of the conference fee of f150 before June 2. (The present exchange rate is US$1=f2.13.) The conference fee is f180 if paid after June 2. This fee includes refreshments at coffeebreaks, and the conference programme containing the abstracts. For the short course fees are f200 (before June 2), or f250, thereafter. The fee includes lecture notes, two lunches, and refreshments during breaks. Information For further information - call the Netherlands (0)80-612986 (secretary of the Mathematics Department) - email Victor Eijkhout: u641000@hnykun11.bitnet - write to O. Axelsson Department of Mathematics Faculty of Mathematics and Computer Science University of Nijmegen Toernooiveld 5 NL 6525 ED Nijmegen the Netherlands Registration Form I wish to register for the PCG conference. Family name: First name and initial: Affiliation: Address: City and postal code: Country: Phone: El. mail: [ ] Please reserve a single/double room for me at the hotel: Arrival date: Departure date: Payment by [ ] Banktransfer on account 42.66.13.783 i.f.o Prof. dr. A.O.H. Axelsson Amro Bank, Keizer Karelplein, Postbus 79, 6500 AB Nijmegen the Netherlands (postgiro account: 848700) [ ] Postgiro account 4393790 Hr. A.O.H. Axelsson, Nijmegen [ ] Eurocheque [ ] enclosed [ ] Travellers cheque [ ] enclosed There is an additional charge of f9 for all foreign cheques, including travellers cheques. This reservation is binding. Please note: -this reservation must reach us before May 26, and the prepayment before June 2 for reduced rates to be applicable. -if the hotel of your preference is booked full, we will reserve a room in the next higher class, unless you specify otherwise. Place and date: Signature: Send the completed form (with enclosed cheque, if applicable) to: J. Maubach Department of Mathematics Faculty of Mathematics and Computer Science University of Nijmegen Toernooiveld 5 NL 6525 ED Nijmegen the Netherlands ------------------------------ From: Joyce Aitchison Date: Tue, 16 May 89 13:26 BST Subject: Vacancies at RMCS, Shrivenham Lecturing and Research Posts. Applied and Computational Mathematics Group - RMCS (Cranfield). RMCS (Cranfield) is a faculty of the Cranfield Institute of Technology but situated at the Royal Military College of Science, Shrivenham, in a rural setting in Oxfordshire. The College is 23 miles west of Oxford and 7 miles east of Swindon. RMCS provides undergraduate and postgraduate courses for both military and civilian students. The academic staff are civilians and are appointed on normal university terms. The Applied and Computational Mathematics group has teaching and research interests in a wide range of topics in physical applied mathematics and numerical analysis. Several vacancies have arisen in our strong and expanding lecturing, research and consultancy programme. Applications are invited form graduates in a mathematical science with experience in such fields as mathematical modelling and numerical analysis. LECTURER: There is a vacancy for a lecturer with responsibilities within a wide range of further education courses, including undergraduate degrees in science and engineering and M Sc courses in mathematical modelling and numerical methods. The post will be for three years in the first instance but there is a strong possibility that the post will be made permament. RESEARCH FELLOW: A three-year, or possibly permament, appointment for a person of post- doctoral or equivalent standing who would participate in research developments and should be adaptable to new requirements. RESEARCH OFFICERS: Two posts of two or three years duration are available for a variety of applicable mathematical projects. Specific openings exist in the areas of computational fluid dynamics, magnetohydrodynamics and finite elements. Application forms and further details may be obtained from Personal Office, RMCS(Cranfield), Shrivenham, Swindon SN6 8LA tel (0793) 785403/ 785421. Informal enquiries may be made to me : email AITCHISON @ UK.AC.CRANFIELD.RMCS telephone (0793) 785276. Joyce Aitchison, Applied and Computational Mathematics Group, RMCS. ------------------------------ From: Kathleen LeBlanc Date: Tue, 16 May 89 11:27 EDT Subject: New Books from SIAM TITLE: Stochastic Processes in the Neurosciences EDITOR: Henry C. Tuckwell SERIES: CBMS-NSF Regional Conference Series in Applied Mathematics No. 56 136 pages, softcover, ISBN 0-89871-232-7, May 1989 LIST PRICE: $24.50 This monograph is centered on the quantitative analysis of nerve-cell behavior. The work is foundational, with many higher order problems still remaining, especially in connection with neural networks. Thoroughly addressed topics include stochastic problems in neurobiology, and the treatment of the theory of related Markov processes. Special features include systems of nonlinear stochastic partial differential equations and the pertubative approach to their solutions; comprehensive treatment of channel noise; and statistical analysis of point processes; Wiener kernel explanations. Mathematicians, especially probabilists and statisticians interested in new applications, will appreciate Tuckwell's work, as will neurobiologists. Background requirements include intermediate probability and related mathematics, as well as a rudimentary knowledge of neurophysiology. CONTENTS: Deterministic Theories and Stochastic Phenomena in Neurobiology; Synaptic Transmission; Early Stochastic Models for Neuronal Activity Including Poisson Processes and Random Walks; Discontinuous Markov Processes with Exponential Decay; One-dimensional Diffusion Processes; Stochastic Partial Differential Equations; The Statistical Analysis of Stochastic Neural Activity; Channel Noise; Wiener Kernel Expansions; The Stochastic Activity of Neuronal Populations ============ TITLE: Parallel Processing and Medium Scale Multiprocessors SERIES: Proceedings in Applied Mathematics EDITOR: Arthur Wouk, Mathematical Sciences Division, Army Research Office 216 pages, softcover, ISBN 0-89871-238-6, June 1989 LIST PRICE: $31.50 The papers in this book represent those presented at the ARO research workshop on Parallel Processing and Medium Scale Multiprocessors held at Stanford University in January 1986. The workshop brought together research workers with strong connections to scientific computation as well as an interest in the systems programming problems that are restricting the application of the new hardware being developed. This volume contains papers covering several areas, including systems programming, parallel language/programming systems, and applications programming. The work reported includes investigations into debugging of operating systems, portability of applications programs and parallel operating systems, efficient resource allocation in multiprocessors, parallel constructs for applications programming languages, and applications programming efforts on diverse architectures. These papers can provide helpful guidance for those wishing to explore the new territory of automatic optimal parallelization of sequentially conceived programs. This book will be a useful guide for all researchers having an interest in scientific computation, especially those wishing to explore more thoroughly the problems involved in automatic optimization in the compilation of parallel programs. CONTENTS: Debugging Multi-Task Programs, Morven Gentleman and Darlene Stewart; Matrix Computations and Game Playing on the iPSC, Cleve Moler and David Scott; A System for Parallel Processing, P. O'Leary, G.W. Stewart, and Robert van de Geijn; Statistical Methodologies for the Control of Dynamic Remapping, Joel Saltz and David Nicol; Sparse Cholesky Factorization on a Local-Memory Multiprocessor, Alan George, Michael Heath, Joseph Liu and Esmond Ng; Concurrent Global Optimization on a Network of Computers, Richard Byrd, Cornelius Dert, Alexander Rinooy Kan, and Robert Schnabel; Heterogeneous Processes on Homogeneous Procesors, George Cybenko, David Krumme, K.N. Venkataraman and A. Couch; Matrix Multiplication on Boolean Cubes using Generic Communication Primitives, Lennart Johnsson and Ching-Tien Ho; The Force on the Flex: Global Parallelism and Portability, Harry Jordan; SCHEDULE: An Aid to Programming Explicitly Parallel Algorithms in Fortran, J. Dongarra and D.C. Sorenson; Dynamic Grid Manipulation for PDEs on Hypercube Parallel Processors, William D. Gropp; Solving Compressible Euler Equations on a Hypercube Simulator, Jung Pyo Hong, Bob Tomlinson, and Nisheeth Patel FOR ORDERING INFORMATION AND REVIEW COPIES (USA ONLY), PLEASE CONTACT KATHLEEN LE BLANC AT SIAM. Phone: (215)564-2929; E-mail: siam@wharton.upenn.edu ------------------------------ From: Robert G Kaires Date: 17 May 89 02:09:30 GMT Subject: Complex Zeros of an Analytic Function I am looking for a FORTRAN routine to find the complex zeros of an Analytic function in the complex plane. I know that there is an IMSL routine called ZANLYT which uses Muller's method. The problem is: we don't seem to have IMSL at this university. Can someone email me a routine they've written (and hopefully tested) that can accomplish this? Another related question: is IMSL public domain?? Are these routines available in source? Thanks in advance for all help. Bob Kaires Clemson University, Clemson, SC ------------------------------ From: Manfred Trummer Date: 17 May 89 15:02 -0700 Subject: Announcement for Pacific Northwest Region PNWNAS 1989 The Third Annual Pacific Northwest Numerical Analysis Seminar will be held on Saturday, September 23, 1989 at Simon Fraser University Burnaby, British Columbia. The format of the meeting will be the same as the first two meetings in Seattle and Bellingham. We will have five invited 45 minute presentations, and ample time for informal discussions. A small registration fee will cover the cost of lunch and refreshments. So far the list of speakers is as follows. Professor Feng Gao Computer Science Department University of British Columbia Professor Randy LeVeque Mathematics Department University of Washington Professor Tjalling Ypma Mathematics Department Western Washington University For more information, or to get on the mailing list, please contact . Manfred Trummer ------------------------------ From: Pat Gaffney Date: Fri, 19 May 89 13:26:03 EMT Subject: Position at Bergen Scientific Centre, Norway BERGEN SCIENTIFIC CENTRE - AVAILABLE POSITION Distributed parallel processing under UNIX Bergen Scientific Centre, IBM, runs a network of UNIX System V workstations (IBM RTs and PS/2s) connected on several LANs. Additionally, there are connections to an IBM 3090 and other networks eg ARPA and EARN. We are looking for a scientist who is interested in some aspects of parallel computing (preferably with a numerical bias) who will also use his/her UNIX experience to assist in supervising and supporting our UNIX systems group. We are also implementing a version of UNIX on our IBM mainframe. We are looking for UNIX system experience to assist in this and to help create an environment where UNIX commands can be executed on either the workstation or mainframe (or both) with a minimum of user interference. This appointment will be for a period of one or two years. Several years UNIX system experience is essential, as is some research activity in parallel processing. Additionally, experience with the following would be desirable: X-Windows Networking Distributed file systems VM-CMS Bergen provides a pleasant environment in the heart of the Western Fjords of Norway with excellent opportunities for outdoor pursuits especially skiing, and water-sports. The centre is English speaking and provides a friendly and flexible environment for scientists of many different backgrounds. Contact Chris Thompson at either of the electronic mail addresses: THOMPSON AT KRYPTON.BSC.NO or FSCCT AT NOBERGEN.BITNET or contact Patrick Gaffney: PAT AT KRYPTON.BSC.NO FSCPG AT NOBERGEN.BITNET ------------------------------ From: Alan Karp Date: Fri, 19 May 89 06:21:31 PDT Subject: IBM Supercomputing Competition 1989 IBM 3090 SUPERCOMPUTING COMPETITION ANNOUNCEMENT April 24, 1989 The IBM Corporation and IBM Canada Ltd. announces the 1989 IBM 3090 Supercomputing Competition. This is a contest for technical papers on advances in Numerically Intensive Computing. IBM will award cash prizes directly to the authors of papers describing work done on IBM 3090 systems, including: o Leading edge uses of large scale computers o Innovative applications or algorithms IBM employees and their immediate family members are not eligible for this competition. First, second and third prizes of $25,000, $15,000 and $10,000 will be awarded in each of four divisions: 1. Physical sciences and mathematics 2. Engineering 3. Life and health sciences 4. Social sciences, humanities and fine arts Universities that support the work of First Prize Papers in each division will be awarded an additional $10,000 if the authors certify that substantive support was provided. An abstract must be registered by October 2, 1989 and the paper must be submitted by January 15, 1990. Award winners in each division will be selected by a panel of independent judges. Winners will be announced by March 1, 1990. The Awards will be distributed by May 1, 1990. A promotional flyer, a General Information Brochure including the Registration Form, Certificate of Originality, and Academic Institution Support Certification and two poster sizes are available. Small quantities are being sent to each Branch Office. For information on submission of papers, contact your Area Technical Computing Manager, Managers of ACIS Marketing or: Milton Thrasher, Competition Admin., T/L 236-6318;RHQVM01(MTHRASH) IBM S&TC, Department 72/BNG, 44 S. Broadway, White Plains, NY 10601-4495 (914) 686-6318 ------------------------------ End of NA Digest ************************** -------