From surfer.EPM.ORNL.GOV!nacomb Sat Jun 15 21:10:35 0400 1991 Received: by pyxis; Sat Jun 15 21:10 EDT 1991 To: pyxis!ehg Received: by inet.att.com; Sat Jun 15 21:10 EDT 1991 Received: by surfer.EPM.ORNL.GOV (5.61/1.34) id AA06886; Sat, 15 Jun 91 21:10:35 -0400 Date: Sat, 15 Jun 91 21:10:35 -0400 From: nacomb@surfer.EPM.ORNL.GOV (NA-NET) Message-Id: <9106160110.AA06886@surfer.EPM.ORNL.GOV> Subject: NA Digest, V. 91, # 24 Apparently-To: ehg@research.att.com NA Digest Saturday, June 15, 1991 Volume 91 : Issue 24 Today's Editor: Cleve Moler Today's Topics: Enhancements to the NA-NET Whitepages. Magnus Hestenes Matrix Exponential Code Wanted, #1 Matrix Exponential Code Wanted, #2 FFT in 386 Assembly Language Wanted PICL Update Position Wanted Position at University of Leicester SERC Research Studentship at Manchester Seminar on Incomplete Decompositions Table of Contents: SIAM J. Appl. Math. Table of Contents: SIAM Computing Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. ------------------------------------------------------- From: Jack Dongarra and Bill Rosener Date: Thu, 13 Jun 91 15:16:26 -0400 Subject: Enhancements to the NA-NET Whitepages. The following two major features have been added to the NANET whitepages. 1. KEYWORD SEARCHES. Below are 2 examples. To find out more information on all people listed in the NANET whitepages who are interested in "parallel". --------------------------------------- mail to: na.whois@na-net.ornl.gov Subject: "blank" Keyword: parallel --------------------------------------- This does a string comparison on all fields other than the name fields searching for the pattern "parallel". 2. MULTIPLE LINE ENTRIES. All fields (except first, last and middle name) can now be more than one line long. Below is an example of how Jack Dongarra would change his "research:" to be more than one line. ---------------------------------------------- mail to: na.change-wp@na-net.ornl.gov Subject: lastname: dongarra firstname: jack research: Numerical Linear Algebra Parallel Processing Software Tools ---------------------------------------------- A character is inserted at the end of each line. Once a keyword has been read (e.g. "research:"), subsequent lines will be added to this field until the next keyword is read or the end-of-message is encountered. Several minor enhancements and features have also been added to the NANET-whitepages. For example, the software used to extract the name from mail sent to "na.whois@na-net.ornl.gov" has been extended to accept many different forms. For instance, the name can now appear on the subject line. For a complete set of instructions describing the NANET and the new features to the whitepages, send mail to "na.help@na-net.ornl.gov" ------------------------------ From: Tony Chan Date: Tue, 4 Jun 91 13:09:36 -0700 Subject: Magnus Hestenes I regret to inform you that Professor Emeritus Magnus Hestenes of UCLA died on Friday, May 31, 1991. He had had a heart attack several days earlier and all three of his children were able to see him before he passed away peacefully at 2:30pm. Magnus Hestenes was born in 1906 and received his Ph.D. from the University of Chicago in 1932. In 1947 he accepted a Professorship at UCLA (at the time he was an Associate Professor at Chicago) and he taught at UCLA until his retirement in 1973. He served as Department Chair from 1950-58. In addition to his essential role in building the UCLA Mathematics Department, he had an outstanding research career. He was best known for his work on the problem of Bolza, for his 1951 paper on quadratic forms in Hilbert space, and for his development of the conjugate gradient method. He received the Guggenheim and Fulbright awards, was a Vice President of the American Mathematical Society, and was an invited speaker at the 1954 International Congress of Mathematicians in Amsterdam. During his tenure at Chicago and UCLA, he supervised the thesis research of 34 students. Tony Chan ------------------------------ From: John Rice Date: Tue, 11 Jun 91 10:35:25 -0400 Subject: FFT in 386 Assembly Language Wanted I am looking for an assembly code 80386 of an FFT. I prefer it to be compatible with Microsoft languages. I am working in the Electrical Engineering and Computer Sciences Department at the University of Michigan, Ann Arbor. Thank you very much. E-mail Address: tinswind@caen.engin.umich.edu ------------------------------ From: Pat Worley Date: Fri, 14 Jun 91 16:53:44 EDT Subject: PICL Update A new version of PICL (Portable Instrumented Communication Library) is now available from netlib@ornl.gov. This backward compatible upgrade includes new features that improve the timestamps generated when tracing, allow Intel iPSC/2 and iPSC/860 users to access nonblocking send and receive commands (isend and irecv), and significantly decrease the overhead of tracing on the iPSC/2. This upgrade represents part of a larger upgrade that will be available in a couple of months. It is being made available now because the new features are extremely useful when using the Intel iPSC/2 and iPSC/860. We also have an implementation of PICL for the NCUBE 6400 (also known as the NCUBE 2) that we are making available at this time. This upgrade has not been tested as thoroughly as the previous version, nor is there much documentation for the new features. In consequence, the original version of PICL will continue to be available from netlib. The source for the new version has the same name as the original version, but with an "x" prefix to the name. Thus "xpicl.shar" is the new version of the "picl.shar" file. A short description of the new features is contained in the file "upgrade.1.91". A list of all available PICL source can be obtained by sending the following message to netlib@ornl.gov: send index from picl Pat Worley worley@msr.epm.ornl.gov ------------------------------ From: C. Woodham Date: Tue, 11 Jun 91 11:04:32 Subject: Position Wanted Postion Wanted I am currently finishing a PhD on eigenvalue placement for Variable Structure Control Systems and am looking for a post-doc post, preferably in the US. I have a BSc (Hons) in Applied Mathematics, an MSc in Numerical Analysis, and three years industrial experience working for GEC Avionics on Inertial Navigation Systems. I would ideally like a post in the Numerical Analysis field, or in the field of Mathematical Control. If further information is required, my full cv is available on request. No reasonable offer refused !! Kate Woodham SERC Research Assistant Department of Applied & Computational Mathematics, University of Sheffield, Sheffield S3 7RH UK AP1CAW@uk.ac.sheffield.primea ------------------------------ From: Will Light Date: Wed, 12 Jun 91 10:49:41 +0100 Subject: Position at University of Leicester University of Leicester Department of Mathematics The University of Leicester is planning to build up a research group in numerical analysis within the mathematics department. At present two appointments have already been made in this area -- Will Light (approximation theory) and Mark Ainsworth (finite element methods). There are two more immediate vacancies. One of these is a permanent position in numerical analysis, and the other is a one year temporary position. However, a good candidate for the temporary position could expect to have her/his appointment made permanent after one or two years. We are looking for good people in any area of numerical analysis, but since Leicester has some very strong Science and Engineering departments, we would particularly welcome applications from people with interests in applications of numerical analysis to scientific problems. It is most important that the persons appointed to these positions are able researchers in numerical analysis. Salary will be on the scale 11,969 pounds to 17,593 pounds, although this is an interim scale as UK salaries are currently under review. There is also a possibility that someone with an established research record could be appointed to a senior position. Unfortunately, we are working to a tight deadline, and 5th July will be the nominal closing date. Further details can be obtained from me via email, snail mail, or FAX. email: maa007@cent1.lancs.ac.uk or na.light@na-net.ornl.gov FAX: (UK code) (0)524 - 381707 (until 30th June) snail mail: Professor W. Light, Mathematics Department, University of Leicester, University Road, Leicester LE1 7RH, England. Will Light ------------------------------ From: Nick Higham Date: Fri, 14 Jun 91 12:59:28 BST Subject: SERC Research Studentship at Manchester The University of Manchester Department of Mathematics Further applications are invited for an SERC Earmarked Research Studentship in Numerical Analysis on the topic Numerical Stability of Iterative Methods for Solving Linear Equations tenable from October 1991 for research leading to a Ph.D. The Numerical Analysis Group comprises six members of staff with research interests including matrix computations, optimization, approximation theory, ordinary and partial differential equations, and parallel computing. Excellent computing facilities are available in the department and in the Manchester Computing Centre. Applicants, with a background in numerical mathematics, should contact as soon as possible Dr N.J. Higham Department of Mathematics University of Manchester Manchester M13 9PL UK Tel: 061 275 5822 Fax: 061 275 5819 email: mbbgsnh@uk.ac.mcc.cms ------------------------------ From: Gabriel Wittum Date: Fri, 14 Jun 91 15:26:13 Subject: Seminar on Incomplete Decompositions GAMM-Fachausschuss Effiziente numerische Verfahren fr partielle Differentialgleichungen First Announcement The GAMM Committee "Efficient numerical methods for PDE" in cooperation with the Christian-Albrechts-Universit Kiel organizes the Eighth GAMM-Seminar Kiel on Incomplete Decompositions (ILU): Theory, Technique and Applications Chairmanship: W. Hackbusch (Kiel), G. Wittum (Heidelberg) Date: January 24 to 26, 1992 Location: Institut fr Informatik und Praktische Mathematik, Universitaet Kiel (Germany) Topics: Incomplete Decompositions used as solvers, Preconditioners or smoothers, Factorization strategies/ Modification/ Stability/ Robustness/ Ordering/ Comp. aspects (e.g. Parallelization) Abstracts: Please send abstracts (10-20 lines) of your lecture by Oct. 31, 1991. Notice of acceptance will be given by Nov. 15. All participants, whether giving a talk or not, have the possibility of sending an abstract of their work on the topic of the conference. The collection of abstracts will be available at the conference. Conference fee:DM 50.P (to be paid after arrival) The first seven GAMM-Seminars were held at Kiel in 1984, 86, 87, 88, 89, 90, 91. The corresponding proceedings have been published in the series "Notes on Numerical Fluid Mechanics" (Vieweg, Braunschweig; vols. 10, 16, 21, 23, 30, 31). ------------------------------ From: SIAM Publications Department Date: Mon, 10 Jun 91 10:20 EDT Subject: Table of Contents: SIAM J. Appl. Math. Table of Contents SIAM J. Appl. Math. Vol. 51, No. 5, October 1991 Semi-Cherenkov and Bi-Chernekov Problems Lim Chee-Seng A Note on Particle-Like Solutions for a nonlinear Complex-Valued Klein--Gordon Equation Jon C. Luke Implications of Viscosity and Strain-Gradient Effects for the Kinetics of Propagating Phase Boundaries in Solids Rohan Abeyarante and James K. Knowles Critical Imperfection of Symmetric Structures Kazuo Murota and Kiyohiro Ikeda Thin Plates and Compressive Membrane Solutions I: Global Breakdown M. E. Brewster Asymptotic Analysis of a Premixed Polydisperse Spray Flame I. Silverman, J. B. Greenberg, and Y. Tambour Transition from Thermal Runaway to Propagating Flames K. L. Henderson and J. W. Dold The Structure and Stability of Flame Balls: A Near-Equidiffusional Flame Analysis C. J. Lee and J. Buckmaster A Mathematical Model for Outgassing and Contamination W. Fang, M. Shillor, E. Stahel, E. Epstein, C. Ly, J. McNeil, and E. Zaron Nonlinear Hydrodynamic Stability and Spinning Deflagration of Liquid Propellants John K. Bechtold and Stephen B. Margolis Forced Transverse Oscillations in a Simple Spring-Mass System Lawrence K. Forbes On Chains of Oscillators Forced at One End N. Kopell, G. B. Ermentrout, and T. L. Williams Chaotic Spikes Arising from a Model of Bursting in Excitable Membranes David Terman Competition in an n-Vessel Gradostat H. L. Smith, Betty Tang, and Paul Waltman Stochastic Properties of the Scalar Buckley--Leverett Equation Helge Holden and Nils Henrik Risebor ------------------------------ From: SIAM Publications Department Date: Fri, 14 Jun 91 10:34 EDT Subject: Table of Contents: SIAM Computing Table of Contents SIAM Journal on Computing, Volume 20, Number 5, October 1991. The Maximum Size of Dynamic Data Structures Claire M. Kenyon-Mathieu and Jeffrey Scott Vitter Time Complexity of Boolean Functions on CREW PRAMs Miroslaw Kutylowski Embedding of Grids into Optimal Hypercubes Mee Yee Chan PP Is as Hard as the Polynomial-Time Hierarchy Seinosuke Toda Selection Networks Nicholas Pippenger An Output-Sensitive Algorithm for Computing Visibility Graphs Subir Kumar Ghosh and David M. Mount Learning Simple Concepts under Simple Distributions Ming Li and Paul M. B. Vitanyi On the Communication Complexity of Solving a Polynomial Equation Zhi-Quan Luo and John N. Tsitsiklis The Spectra of Infinite Hypertrees Joel Friedman On the Complexity of Learning Minimum Time-Bounded Turing Machines Ker-I Ko Minimum Diameter Spanning Trees and Related Problems Jan-Ming Ho, D. T. Lee, Chia-Hsiang Chang, and C. K. Wong ------------------------------ End of NA Digest ************************** -------