Subject: NA Digest, V. 92, # 39 NA Digest Sunday, October 18, 1992 Volume 92 : Issue 39 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: New Address for C. A. de Moura New Address for Nick Papamichael Families at Householder Symposium Renumbering of Mesh Nodes Postscript and LaTeX Overlaying postscript figures with LaTeX fragments Leicester University Numerical Analysis Day New Center at Simon Fraser University Computational Neuroscience European Multigrid Conference One Day Tutorial Introduction to MATLAB Postdoctoral Research Position at Argonne Fellowship Positions at Sandia National Laboratories New Publisher for Mat. Aplic. Comp. Contents: IMA Numerical 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: Carlos Moura Date: Mon, 12 Oct 92 15:07:01 EST Subject: New Address for C. A. de Moura Back to Rio, my email has changed from now on to demoura@lncc.br Best regards Carlos A. de Moura LNCC - Brazilian Laboratory for Scientif Computation C. P. 56018 22290-160 Rio de Janeiro, Brazil ------------------------------ From: N. Papamichael Date: Fri, 16 Oct 92 08:45:49 EST Subject: New Address for Nick Papamichael As of Oct.10, my new address is: Department of Mathematics and Statistics University of Cyprus P.O. Box 537 Nicosia - CYPRUS Tel: +357-2-366186 Fax: +357-2-366198 E-mail: nickp at cyearn.bitnet Home tel: +357-2-312457 ------------------------------ From: Tony Chan Date: Tue, 13 Oct 92 15:37:37 +0800 Subject: Families at Householder Symposium "Small Chilren and Householder Symposium" After our recent annoucement of the Householder Symposium on NADIGEST, there have been many inquiries concerning the issue of whether "small children" are allowed at the conference site. The rule as stated in the announcement was imposed by the conference center, not by the organizers. Since then, we have been able to convince the center to make an exception in our case because it is anticipated that we will have the whole center to ourselves and will not be affecting other conference groups. The new rules and prices are: Children 3 years & younger are no charge. Children 3-14 years are 1/2 price (of the $92.00). Children 15 & older are full price. In case of capacity overflow, conference participants will take priority and accompanying spouses and children will be accomodated at a first-come-first-served basis. There are also off-site hotels in the Lake Arrowhead area which individuals can explore (and we can provide some information on those.) ------------------------------ From: Jan Korvink Date: Wed, 14 Oct 92 13:17:42 +0100 Subject: Renumbering of Mesh Nodes Does anyone have, or know where to find, a routine in C (or if it must be, FORTRAN) that optimises the numbering of mesh joints. This is needed to obtain a reduced matrix "profile" for repeated finite element computations on the same mesh using a direct linear solver. The routine will take as input the connectivity of the mesh, and return a list with the optimised nodal order. Thank you in advance, Mohammad Tabatabai Jan Korvink Computer Science in Engineering ETH-Zuerich Switzerland email: tabatabai@pfi.ethz.ch korvink@pfi.ethz.ch ------------------------------ From: Craig Barratt Date: Mon, 12 Oct 92 11:24:26 -0700 Subject: Postscript and LaTeX Subject: Overlaying postscript figures with LaTeX fragments A new version (1.1) of the PsFrag macros is now available. This version handles a wider class of postscript figures, allowing PsFrag to work with packages such as Freehand and Mathematica. The PsFrag macros make it easy to overlay postscript figures with fragments of LaTeX. These macros allow you to get the best of both worlds: you can generate a postscript figure as usual using your favorite drawing or plotting program (for example, xfig, idraw, freehand, matlab, xmath, or mathematica), but each piece of text can be selectively replaced with high-quality LaTeX formatted equations, text, or pictures, when it is included in a LaTeX document. The LaTeX fragments can be optionally rotated, scaled, and repositioned relative to the text being replaced. The LaTeX fragments automatically track the postscript text position as the postscript file is updated, or as the scaling and offsets of the enclosing \special or \epsfbox are changed. PsFrag is available via anonymous ftp from isl.stanford.edu (internet address 36.60.0.10). Set binary mode and get the compressed tar file pub/boyd/psfrag/psfrag.tar.Z Extract the archive using uncompress and tar xvf (or gtar zxvf). See the files README, USAGE, INSTALL for detailed information. If you can't ftp then I can email you a uuencoded version. Note: PsFrag uses ghostscript (gs) from the gnu distribution, and assumes that your dvi to ps driver is Tomas Rokicki's dvips (Radical Eye Software). You will need both of these programs to use PsFrag. Basically, PsFrag uses ghostscript to interpret the postscript figure and spit out a LaTeX picture environment that exactly lines up with the postscript figure. Craig Barratt craig@isl.stanford.edu ------------------------------ From: Jeremy Levesley Date: Thu, 15 Oct 92 12:05:57 BST Subject: Leicester University Numerical Analysis Day Numerical Analysis Day at Leicester University, UK Wednesday 18th November 1992 A Numerical Analysis day is to be held on Wednesday November 18th 1992 in the Department of Mathematics and Computer Science of Leicester University. The two principal speakers are Professor K.W. Morton (OUCL) who will be speaking on ``The Box Scheme and Related Finite Volume Methods'', and Rick Beatson (Canterbury, New Zealand) on ``Fast Evaluation of Radial Basis Functions''. As well as the two invited speakers there will be a number of shorter talks from other people attending the conference. If you wish to present a talk please contact one of the organisers (email and phone numbers below), by Friday 30th October. If you want only to attend please reply by Friday 6th November. The cost of the day is \pounds 10, including morning and afternoon refreshments, and lunch. Please make cheques payable to ``University of Leicester''. Jeremy Levesley Department of Mathematics and Computer Science Leicester University University Road Leicester LE1 7RH. UK. jl1@sun1.math.le.ac.uk (0533) 523897 ------------------------------ From: Jonathan Borwein Date: Thu, 15 Oct 92 15:49:34 EDT Subject: New Center at Simon Fraser University Simon Fraser Centre for Experimental and Constructive Mathematics This Centre located in Burnaby British Columbia (Greater Vancouver) is intended to further research and graduate education in Computation in the Mathematical Sciences. The Centre aims to provide a sophisticated environment for Mathematical research on topics that require a substantial mix of computation, experimentation and mathematics. Of interest are questions on how one uses the computer: To build intuition? To generate hypotheses? To validate conjectures or prove theorems? To discover nontrivial examples and counter-examples? The centre will commence full operation July 1, 1993. Activities will include the following. (i) Provision for and sponsorship of Post-Doctoral Fellowships in areas related to Experimental and Constructive Mathematics. (ii) Sponsorship of regular short-term and longer-term research visitors to the Centre. (iii) Organization of regular Colloquia and occasional Conferences on advances in Experimental and Constructive Mathematics. (iv) Participation in the training of graduate students in Experimental and Constructive Mathematics. (v) Establishment, development and maintenance of accessible software archives. (vi) Collaboration with similar centres and appropriate individuals at other Canadian and foreign Universities and Institutes. The initial steering committee consists of J. Borwein (Director), P. Borwein and R. Russell. Enquiries can be directed to jborwein@math.sfu.ca . The Centre is soliciting applications for two Post-Doctoral Fellows commencing after July 1, 1993, in any areas compatible with the interests of the centre. The stipend will be set on the NSERC PDF scale. These are primarily research positions though some teaching may be involved. Potential Post-Doctoral Fellows should send a curriculum vitae and arrange for three letters of reference to be sent to Dr. J.M. Borwein, Department of Combinatorics and Optimization,University of Waterloo, N2L 3G1, Ontario preferably by December 15, 1992. The Centre will be soon be soliciting applications for the position of Computer System Administrator commencing April 1, 1993. Salary range is $42,846-$54,955. This person will be responsible for the installation and operation of the CECM computing facility and will be expected to provide technical leadership for this and related projects. A post graduate degree in Computing Science or Electrical/Electronic Engineering and five years' experience (or an equivalent combination of experience and training) are required. ------------------------------ From: sayegh@cvax.ipfw.indiana.edu Date: Mon, 12 Oct 1992 03:43:12 EST Subject: Computational Neuroscience COMPUTATIONAL NEUROSCIENCE SYMPOSIUM 1992 (CNS '92) University Place Conference Center Indiana University-Purdue University at Indianapolis, Indiana In cooperation with the IEEE Systems, Man and Cybernetics Society The Computational Neuroscience Symposium (CNS '92) will highlight the interactions among engineering, science, and neuroscience. Computational neuroscience is the study of the interconnection of neuron-like elements in computing devices which leads to the discovery of the algorithms of the brain. Such algorithms may prove useful in finding optimum solutions to practical engineering problems. The focus of the symposium will be forty-five minute special lectures by eight leading international experts. KEYNOTE LECTURE: "Challenges and Promises of Networks with Neural-type Architectures" NICHOLAS DeCLARIS, Professor of Applied Mathematics, Electrical Engineering, Pathology, Epidemiology & Preventive Medicine; Director, Division of Medical Informatics, University of Maryland. SPECIAL LECTURES: "Teaching the Multiplication Tables to a Neural Network: Flexibility vs. Accuracy" JAMES ANDERSON, Professor of Cognitive & Linguistic Sciences, Brown University. "Supervised Learning for Adaptive Radar Detection" SIMON HAYKIN, Director of Communication Research Laboratory, McMaster University. "Neural Network Applications in Waveform Analysis and Pattern Recognition" EVANGELIA MICHELI-TZANAKOU, Chair and Professor of Biomedical Engineering, Rutgers University. "Signal Processing by Neural Networks in the Control of Eye Movements" DAVID ROBINSON, Professor of Ophthalmology, Biomedical Engineering & Neuroscience, The Johns Hopkins University. "Nonlinear Properties of the Hippocampal Formation" ROBERT SCLABASSI, Professor of Neurosurgery, Electrical Engineering, Behavioral Neuroscience & Psychiatry, University of Pittsburgh. "Acoustic Images in Bar Sonar and the Mechanisms Which Form Them" JAMES SIMMONS, Professor of Biology & Psychology, Brown University. "Understanding the Brain as a Neurocontroller: New Hypotheses and Experimental Possibilities" PAUL WERBOS, Program Director, National Science Foundation and President, International Neural Network Society. Please contact the Conference Secretary for registration information. Ms. Nancy Brockman ~ CNS '92 Conference Secretary 799 West Michigan Street, Room 1211 y Indianapolis, IN 46202 tel: (317)274-2761 ~ fax: (317)274-0832 CNS '92 ORGANIZING COMMITTEE H. Oner Yurtseven, General Co-Chair Sidney Ochs, General Co-Chair P.G. Madhavan, Program Chair Michael Penna, Publication Chair ------------------------------ From: Piet Wesseling Date: Thu, 15 Oct 92 12:02:11 MET Subject: European Multigrid Conference Second Call for papers European Multigrid Conference, EMG'93 July 6-9, 1993 Amsterdam The Netherlands Following earlier conferences in 1981, 1985 and 1990 EMG'93, the fourth European Multigrid Conference will be held in Amsterdam, July 6-9, 1993. The conference aims at providing a forum for the presentation and discussion of recent research in the general area of multilevel methods. Participation is expected to be worldwide. Themes of the conference will range from basic research to industrial applications, including but not limited to the following subjects: * computational fluid dynamics, * reservoir engineering, * semiconductor device modeling, * statistical physics, * parallel computing, * adaptive computing, * numerical analysis of multigrid methods. PROGRAM The program of the fourth European Multigrid Conference will consist of invited lectures in plenary sessions and selected presentations in 2 parallel sessions. Members of the program committee are P.W. Hemker (CWI/University of Amsterdam) and P. Wesseling (Delft University of Technology) CALL FOR PAPERS Contributions to EMG'93 are solicited. Send 3 copies of an extended abstract of no more than 2 pages to the conference administrator. The deadline for submissions is 15 December 1992. Notifications of acceptance will be mailed on 30 January 1993. INVITED LECTURES Invited lectures will be presented by: * A. Brandt * C. Douglas * L. Fuchs * W. Hackbush * P. Lauwers * K. St\"uben * S. van de Walle * C.H. Venner * G. Wittum ORGANIZING COMMITTEE P.W. Hemker F. Snijders P. Wesseling S. van der Wolff CONFERENCE ADMINISTRATOR EMG'93 - European Multigrid Conference 1993 c/o CWI Ms. Simone van der Wolff P.O. Box 4079 1009 AB Amsterdam The Netherlands Tel. 020-5929333 Fax. 020-5924199 email: simone@cwi.nl Pieter Wesseling Faculty of Technical Mathematics and Informatics Delft University of Technology P.O. Box 5031 2600 GA Delft, The Netherlands Tel. +3115 - 783631 Fax +3115 - 787209 E-mail: witawes@dutinfh.tudelft.nl ------------------------------ From: Venkat V S S Sastry Date: Fri, 16 Oct 92 9:57 BST Subject: One Day Tutorial Introduction to MATLAB One day Course MATLAB: a tutorial introduction 1 WHEN AND WHERE 16 November 1992. Applied and Computational Mathematics Group, Royal Military College of Science. 2 PARTICIPANTS The course is specifically designed for scientists, engineers and lecturers who either use routine numerical/matrix calculations in their specific application area or teach the subject at various levels. No specialist knowledge of programming or computer science is required, but participants are expected to have basic knowledge of computing and to be educated to HNC or degree level. 3 COURSE MATERIAL Every participant will receive a comprehensive set of lecture notes illustrating various features of MATLAB. 4 COURSE OVERVIEW The course provides hands-on experience of the MATLAB package, and will be followed by an in-depth presentation of case studies which deal with specialist topics from Signal Processing, Control System Design, Numerical Computations, Splines and Optimization. Most of the afternoon is devoted to tutorials and the participants will have ample opportunity to work on a specialist topic of their choice. 5 COURSE STAFF The course lectures will be given by the teaching and research staff of the Applied and Computational Mathematics Group under the direction of Dr. Venkat V.S.S. Sastry. 6 COURSE FEES The fee of #150 (pounds) includes morning coffee, afternoon tea, a copy of lecture notes and all computer facilities used. (Academic staff: #112.50 (pounds), research students: #75 (pounds)). Cheques are payable to RMCS(Cranefield). 7 RELATED COURSE This one day course forms part of a longer course entitled Re-Usable Software Systems, Libraries and Packages, 16-20 November 1992, which also covers Mathematica, PAFEC, NAGFE, SENAC and NAGGRAPHICS. Further information is available from Mrs. P. M. Moore. 8 BOOKING To reserve a place on the course please write to Mrs. P. M. Moore, Applied and Computational Mathematics Group, RMCS, Shrivenham, Swindon, Wilts., SN6 8LA or Tel: (0793) 785317 or e-mail: sastry@uk.ac.cran.rmcs ------------------------------ From: Chris Bischof Date: Fri, 16 Oct 92 13:12:25 CDT Subject: Postdoctoral Research Position at Argonne The Mathematics and Computer Science Division of Argonne National Laboratory is inviting applications for a postdoctoral research position. The appointment is for a one-year term (renewable). The successful candidate will participate in a project for sensitivity analysis and design optimization of large-scale computer models. At the heart of this effort are techniques for the automatic differentiation of computer programs. Argonne researchers are spearheading this effort, and, in collaboration with Rice University, have developed the ADIFOR automatic differentiation tool for Fortran programs. We are looking for an individual to implement and investigate recent theoretical advances in automatic differentiation, and validate them in application contexts. We are investigating the utilization of automatic differentiation in the multidisciplinary design optimization of flight vehicles in a joint effort with NASA Langley. Hence, applications of particular current interest are sensitivity analysis and design optimization of advanced CFD, structures, and finite-element codes. This project is interdisciplinary in nature and interfaces with efforts in numerical optimization, parallel computing, large-scale simulation of physical processes, compiler construction, and programming tools. Project members have access to state-of-the art computing facilities, including a 520-processor Intel Touchstone DELTA. Nominal requirements include a Ph.D. in computer science, applied mathematics, or an applied science or engineering discipline. A good algorithms background and hands-on experience in some aspect of scientific computing is necessary. Argonne is located in the southwestern Chicago suburbs, offering the advantages of affordable housing and good schools, as well as easy access to the cultural attractions of the city. Applications must be addressed to Nancy Griparis, Box mcs-postdoc, Employment and Placement, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, and must include a resume and the names and addresses of three references. For further information, contact Christian Bischof, bischof@mcs.anl.gov, Fax: (708) 252-5986 Argonne is an affirmative action/equal opportunity employer. ------------------------------ From: Richard C. Allen Date: Fri, 16 Oct 92 05:50:29 GMT-0900 Subject: Fellowship Positions at Sandia National Laboratories Applied Mathematical Sciences Research Fellowship Computational Sciences, Computer Sciences and Mathematics Center Sandia National Laboratories The Computational Sciences, Computer Sciences and Mathematics Center at Sandia National Laboratories invites outstanding candidates to apply for the 1993 AMS Research Fellowship. The Fellowship is supported by the Applied Mathematical Sciences Research Program of the U.S. Department of Energy. AMS Fellowships at Sandia provide an exceptional opportunity for innovative research in scientific computing on advanced architectures and are intended to promote the transfer of technology from the laboratory research environment to industry and academia through the advanced training of new computational scientists. Candidates must be U.S. citizens, have recently earned a Ph.D. degree or the equivalent, and have a strong interest in advanced computing research. The Center maintains strong programs in analytical and computational mathematics, discrete mathematics and algorithms, computational physics and engineering, advanced computational approaches for parallel computers, graphics, and architectures and languages. Sandia provides a unique parallel computing environment, including a 1024-processor nCUBE 2, a 64-processor Intel IPSC-860, a Connection Machine-2, and several large Cray supercomputers. The fellowship appointment is for a period of one year and may be renewed for a second year. It includes a highly competitive salary, moving expenses, and a generous professional travel allowance. Applicants should send a resume, a statement of research goals, and three letters of recommendation to Robert H. Banks, Division 7531-XX, Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185. The closing date for applications is December 31, 1992, although applications will be considered until the fellowship is awarded. The position will commence during 1993. For further information contact Richard C. Allen, Jr., at (505) 845-7825 or by e-mail, rcallen@cs.sandia.gov. ------------------------------ From: Carlos Moura Date: Mon, 12 Oct 92 15:24:05 EST Subject: New Publisher for Mat. Aplic. Comp. Starting with Volume 11, 1992, Matematica Aplicada e Computacional (Computational and Applied Mathematics), a journal under the auspices of SBMAC - Brazilian Society for Computational and Applied Mathematics - will have as its publisher Birkhauser Boston. Editorial policy and interests, as well as Editorial board will remain unchanged, except that Jim Douglas, Jr. became one of the main editors (C.S.Kubrusly and C.A.de Moura, from LNCC, Rio are the other two). Mat. Aplic. Comp., V. 11, Issue 1, 1992 J. Douglas, Jr. and P.J. Paes-Leme Finite difference methods for a model for immiscible displacement in naturally fractured petroleum reservoirs O. H. Bustos and A. C. Frery A contribution to the study of Markovian degrade images: an extension of a theorem by Geman and Geman M. Krizek, P. Neittaanmaki and M. Vondrak A nontraditional approach for solving the Neumann problem by the Finite Element Method V. A. Bravo Controllability and the rank condition of the control vectors J. E. Munoz-Rivera Asymptotic behavior of energy in linear thermo-visco-elasticity ------------------------------ From: Iain Duff Date: Mon, 12 Oct 92 09:58:14 GMT Subject: Contents: IMA Numerical Analysis IMA JOURNAL OF NUMERICAL ANALYSIS - Volume 12, Number 4. P D Robinson Variational bounds on the entries of the inverse and A J Wathen of a matrix A Iserles Unified approach to spurious solutions introduced and A M Stuart by time discretization Part II; BDF-like methods G Mullenheim Solving two point boundary value problems with spline functions J M Borwein Fast evaluation of the gamma function for small and I J Zucker rational functions using complete elliptic integrals of the first kind B Cahlon Numerical solutions for functional integral and D Schmidt equations P K Jimack On steady and large time solutions of the semi-discrete Moving Finite Element equations for one-dimensional diffusion problems C Bernardi Mixed spectral element approximation of the V Girault and Navier-Stokes equations in the stream-function Y Maday and vorticity formulation ------------------------------ End of NA Digest **************************