Subject: NA Digest, V. 93, # 12 NA Digest Sunday, March 21, 1993 Volume 93 : Issue 12 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Fitting Experimental Data by Best Approximation New Textbook, Introduction to Linear Algebra Annual Meeting of Canadian Applied Math Society Workshop for Women Students and Post-docs Workshop on Industrial Postdoc Programs SIAM Conference on Geometric Design Lanczos International Centenary Conference PVM Users' Group Meeting XIII Parallel Circus Postdoc at University of Colorado at Denver Position at the University of Dortmund, Germany Contents, Numerical Mathematics 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: C. Zhu Date: Fri, 19 Mar 93 14:59:44 EST Subject: Fitting Experimental Data by Best Approximation A scientist records observations Z to true values Y over a set X which he believes is generated by a model F with parameter A (unknown). He then obtains a ``near best'' approximation on X by F with parameter B to data Z. He believes B should be close to A, at least if Z is close to Y. Unfortunately no quantitative results have appeared and recent experinece in exponential sums suggests that even if the closeness belief is correct, constants are unfavorable. The situation may be so bad that data fitting for the more complicated models F may be no more valid than astrology. The author would be glad to exchange opinions and experiences with those interested in this topic. Charles B. Dunham, Univ. of Western Ontario, Canada. czhu@uwovax.uwo.ca ------------------------------ From: Gil Strang Date: Mon, 15 Mar 93 15:18:26 EST Subject: New Textbook, Introduction to Linear Algebra New Textbook : Introduction to Linear Algebra Gil Strang's new linear algebra textbook will be published for classes this fall. It combines theory and applications, starting more gradually than his current book - it is for a wide range of students. This basic course can show how linear algebra is really used. To go with the text Cleve Moler has written MATLAB Teaching Codes (even including Cramer's rule) . Thanks go also to many people on NA NET who suggested exercises. Reading the short codes in the text gives students a new and different look at linear algebra . So does using them. The preliminary version, for faculty only, will be printed in April. Letters have gone to many departments with a reply card to Wellesley - Cambridge Press, Box 812060, Wellesley MA 02181. You could write directly to me at gs@math.mit.edu if this book might fit your department's plans. Thank you. ------------------------------ From: Joseph Liu Date: Mon, 15 Mar 1993 08:02:03 -0500 Subject: Annual Meeting of Canadian Applied Math Society 14th Annual Meeting of the Canadian Applied Mathematics Society/ Societe Canadienne de Mathematiques Applique The annual meeting of CAMS/SCMA will be held at York University North York, Ontario, May 30-June 2, 1993. (North York is a suburb of Toronto located about ten miles north of downtown Toronto). Three symposia associated with the meeting are Fluid Dynamics, Functional Differential Equations and Mathematical Biology, and Numerical Algorithms. Plenary speakers will include R. Bartels, J. Gilbert, J. Hale, S. Leibovich, M. Mackey, L. Mysak, J. Nocedal, R. Nussbaum, and Y. Wu. The Academic Committee consists of W. Enright (Toronto), H. Freedman (Alberta), J. Liu (York), S. Shen (Alberta), S. Sivaloganathan (Waterloo), H. Van Roessel (Alberta), and J. Wu, Chair (York). Deadline for submission of abstracts for contributed papers is April 2, 1993. For further information, please contact: Professor J. Wu Dept of Math and Statistics York University North York, Ontario CANADA M3J 1P3. Email: WUJH@VM1.YORKU.CA Phone: (416) 736-5250 Fax: (416) 736-5735 ------------------------------ From: Suzanne Lenhart Date: Wed, 17 Mar 93 10:27:59 -0500 Subject: Workshop for Women Students and Post-docs The Association for Women in Mathematics will sponsor a workshop for women graduate students and postdocs. Funding and research opportunites and career choices will be discussed. It will take place on July 11, l993 at the site of the SIAM National Meeting (July 12-16) in the Wyndham Franklin Plaza Hotel in Philadelphia. Funding will be provided by NSF and the Office of Naval Research. Up to 10 women graduate students and 10 women postdocs can receive funding for travel and subsistence to attend this workshop. To be eligible for funding, graduate students must have started on a thesis problem and have a letter of recommendation from their advisor. Postdocs must have received their PhDs within 5 years. Each application should include a vitae and a concise description of research. Letters of reference may be included. Application (5 copies) should be sent to AWM Workshop Selection 4114 Computer and Space Sciences Building University of MAryland College Park, MD 20742-2431 Application deadline April 1, l993 For further information, call Suzanne Lenhart at 615-974-4270 or send email lenhart@mathsun12.math.utk.edu ------------------------------ From: Willard Miller Date: Thu, 18 Mar 93 07:54:09 CST Subject: Workshop on Industrial Postdoc Programs INSTITUTE FOR MATHEMATICS AND ITS APPLICATIONS IMA TUTORIAL WORKSHOP: HOW TO START AN INDUSTRIAL POSTDOC PROGRAM May 22 - 23, 1993 Supported by a grant from Special Projects Section, Division of Mathematical Sciences, National Science Foundation. Cosponsored by the Joint Policy Board for Mathematics (JPBM) The Division of Mathematical Sciences of the National Science Foundation is considering modifications of its Mathematical Sciences Postdoctoral Research Fellowship activity. The modifications may include the option of an industrial postdoctoral fellowship. If approved by the Foundation, the modifications are planned to be implemented in the fall of 1994. This Tutorial Workshop is designed to discuss how interested faculty from various universities might develop proposals for this modified fellowship activity. It is anticipated that the fellowships may require industrial matching funds and that each industrial postdoctoral fellow will spend half-time on an industrial project and half-time working with a university faculty mentor. Prospective mentors would be responsible for initiating the industrial contact and securing university and industrial commitments for the postdoctoral fellowships. The overall program goal is to develop mutual research and technology transfer between mathematics and industry through the mechanism of (i)preparing math Ph.D's for productive research in industry, while maintaining viable contact with universities and (ii) exposing math Ph.D's, who will go into an academic career, to the excitement of industrial research. Potential benefits to industry include contact through postdocs to cutting edge knowledge, technology transfer at ``lower'' levels, and hiring possibilities. Potential benefits to universities include a broadening of mathematics research and education activities, and the development of job opportunities for young mathematicians beyond college and university mathematics departments. The immediate goal of the workshop is to attract prospective faculty mentors from across the US and to show them how to learn the language of industrial research and to nurture relationships with industrial scientists to the level of developing a joint industrial mathematics project. Mathematics faculty interested in acting as a mentor for an Industrial Postdoc are invited to apply to attend. Those who wish financial support for their travel and local expenses should submit their vitae and a statement of interest and background appropriate for a faculty mentor. The registration cost is $16 for the dinner. To preregister contact the IMA (or obtain the registration form and schedule by anonymous ftp at ima.umn.edu and return it) by April 14, 1993. The program will feature (in order): Richard Herman, Director, JPBM Avner Friedman, Director, IMA J. Allen Cox, Honeywell researcher David Dobsen, former IMA Industrial Postdoc Bernard McDonald, Head Special Projects, Division of Math Sciences, NSF Ellis Cumberbatch, Claremont Graduate School Robert Fennell, Clemson University James Glimm, SUNY Stony Brook Mary Wheeler, Rice University INSTITUTE FOR MATHEMATICS AND ITS APPLICATIONS University of Minnesota 514 Vincent Hall 206 Church Street S.E. Minneapolis, Minnesota 55455 FAX (612) 626-7370 telephone (612) 624-6066 ima-staff@ima.umn.edu files of announcements, forms and preprints via anonymous ftp: ima.umn.edu ------------------------------ From: Trini Flores Date: Fri, 19 Mar 93 10:42:34 EST Subject: SIAM Conference on Geometric Design Third SIAM Conference on Geometric Design November 1-5, 1993 Tempe, Arizona The DEADLINE for submission of contributed abstracts to the conference has been EXTENDED TO MARCH 29, 1993. For those of you who have not sent in your 100-word abstracts, please do so NOW! You can submit your abstracts electronically. To help in formatting your submission, plain TeX or LaTeX macros are available. Contact SIAM at: meetings@siam.org If you are not using TeX, submissions can be made by plain text e-mail, but no embedded symbols from mathematics editor should be used. You may also send your abstracts via FAX 215-386-7999. We look forward to receiving your submission on or before March 29, 1993. ------------------------------ From: Moody Chu Date: Fri, 19 Mar 93 16:56:47 -0500 Subject: Lanczos International Centenary Conference SECOND CALL FOR PAPERS CORNELIUS LANCZOS INTERNATIONAL CENTENARY CONFERENCE December 12-17,1993 North Carolina State University Raleigh, NC, USA To celebrate the birth of Cornelius Lanczos in 1893, North Carolina State University together with other sponsors will hold an international conference from Sunday 12 December through Friday 17 December 1993. The conference will reflect the wide interests of Cornelius Lanczos in computational mathematics, theoretical physics, and astrophysics. PROGRAM The program of the conference includes approximately twenty-six invited plenary speakers and twenty-five minisymposia which will deal with the research topics listed below. The conference will also include sessions of contributed papers in the form of twelve minute talks and poster sessions. The contributed talks and posters can be on any topic in the areas of computational mathematics, theoretical physics, and astrophysics, including: -Software for Lanczos-based Algorithms -Least Squares -Control Applications -Moments in Numerical Analysis -Eigenvalue Computations -Wavelets -Development of the FFT -Tau Method -The FFT in Signal Processing -Chebyshev Polynomials -Iterative Methods for Linear Systems -Computational Magnetohydrodynamics in Astrophysics -Galaxy Formation and Large-Scale Structure of the Universe -Numerical Simulations of Collisionless Space Plasmas -Detection of Gravitational Radiation from Astrophysical Sources -Cauchy Problem of General Relativity -Cosmic Censorship -Lanczos H-tensor -Symplectic Methods in Physics -Canonical Quantum Gravity and the Problem of Time -Decoherence and the Foundations of Quantum Mechanics -Mechanics -New Variables and Loop Quantization -SSC Physics -Open Questions in Particle Theory The closing date for receiving abstracts for oral contributed papers is 1 May 1993. The closing date for receiving abstracts for poster papers is 2 August 1993. Please see FURTHER INFORMATION below for information on submitting an abstract. PLENARY SPEAKERS COMPUTATIONAL MATHEMATICS: THEORETICAL PHYSICS & ASTROPHYSICS: James W. Cooley V.I. Arnold* Jane K. Cullum James B. Hartle Roland W. Freund Christopher J. Isham Gene H. Golub Jerrold E. Marsden Anne Greenbaum Roger Penrose Martin H. Gutknecht Tsvi Piran Eduardo L. Ortiz John J. Stachel Christopher C. Paige Yasushi Takahashi Beresford N. Parlett Claudio Teitelboim Pal Rozsa Kip S. Thorne Youcef Saad Michael S. Turner G. W. Stewart John A. Wheeler John Todd * To be confirmed FINANCIAL SUPPORT We have funding from the NSF for partial support for some advanced Ph.D. students or junior researchers to attend this conference. Please see FURTHER INFORMATION below. Women, minorities and disabled individuals are particularly encouraged to apply. No other forms of financial support are available. FURTHER INFORMATION A first circular has been sent out through the SIAM, APS and GRG mailing lists. A second circular giving details about the program and related information will be distributed during May, 1993. If you wish to receive the second circular, please complete and return the reply form attached in the first circular, or write to: Cornelius Lanczos International Centenary Conference, Attn: Sheehan/Heggie, NCSU/OCE&PD, Box 7401, Raleigh, NC, 27695-7401, USA or contact through e-mail: lanczos@math.ncsu.edu. A mail server has been set up to answer most of your questions. Simply include the text "send information" in the "Subject" line of your e-mail message. You will receive a file that will direct you to instructions on how to submit an abstract, how to apply for financial support, etc. ------------------------------ From: Jack Dongarra Date: Sat, 20 Mar 93 12:16:56 -0500 Subject: PVM Users' Group Meeting 1993 PVM Users Group Meeting Knoxville, Tennessee May 10 - 11 The first PVM Users' Group Meeting will be held May 10th and 11th, 1993, at the Downtown Knoxville Hilton, Knoxville, TN. The meeting will provide a chance for users of PVM to meet each other and members of The PVM Team. The conference will include: * Invited talks by experts in fields of interest to PVM users. * Contributed papers from the PVM user community. * Technical presentations by the developers of PVM. * Social activities. There will be invited talks by the following individuals: Donna Bergmark, Cornell University Dennis Duke, Florida State University Weicheng Jiang, University of Tennessee Neil Lincoln, Sessco Bob Manchek, University of Tennessee Peter Rigsbee, Cray Research Karl-Heinz Winkler, Los Alamos National Laboratory Call For Papers: The PVM Team welcomes abstracts of papers for possible presentation at the Users' Group meeting. Abstracts should be approximately 300 words in length. The deadline for submitting abstracts is April 15, 1993. Abstracts will be reviewed and authors notified of their acceptance by April 30. Please submit abstracts to: Jan Jones Computer Science Department University of Tennessee Knoxville, TN 37996 phone: 615-974-8295, fax: 615-974-8296 or to: pvmug@cs.utk.edu If you would like to be on the mailing list to receive additional information on the Users' Group Meeting, please send your name, postal mailing address and phone number to: pvmug@cs.utk.edu. ------------------------------ From: E. Gallopoulos Date: Sat, 20 Mar 93 15:33:23 CST Subject: XIII Parallel Circus SECOND ANNOUNCEMENT XIII Parallel Circus Urbana, Illinois April 23-24, 1993 The Parallel Circus is an informal meeting of the numerical analysis community with particular emphasis on parallel algorithms for scientific computing. The XIIIth Circus will be held this spring and will be hosted by the Department of Computer Science and the Center for Supercomputing Research and Development of the University of Illinois at Urbana-Champaign. As with previous Circuses, we hope to have many attendees from the USA, Canada, and other countries. The circus is unique in that it is very informal, and thus allows us to talk about the very latest results as well as interesting work in progress. In previous meetings there have been many informal discussions and a good mix of attendees from universities, industry and national laboratories. Although there are no proceedings, a circus diary is kept and posted in NAnet. COMPLETE ANNOUNCEMENT Complete announcements, including registration form, are available via anonymous ftp from sp2.csrd.uiuc.edu (128.174.162.51) in directory CSRD_Info/announcements. Get file pc13.1ascii (ASCII) or pc13.1ps (PostScript). These forms can be also obtained by sending e-mail to csrd_info@csrd.uiuc.edu with the single line request "send pc13.1ascii from announcements" for the ASCII version. A nicer PostScript version is available sending the message "send pc13uenc.1ps from announcements". To restore the latter you must run it through "uudecode" first. SCHEDULE The actual lengths of presentations will depend on the number of participant that wish to speak. Experience shows that it is reasonable to plan for 30 minute long talks, including questions and discussion. The circus will begin on Friday morning and end Saturday afternoon. The schedule of talks will be set Friday morning. Participants who give a talk and leave are generally regarded as anti-social, so you should plan to attend all of the talks. A major event of the Circus is the Friday evening dinner, to be held at a local restaurant. GRADUATE STUDENTS Graduate students are especially welcome. There is modest support from the National Science Foundation for student travel to the Parallel Circus. Those students requesting support should give reasons for attending the meeting and a budget for expenses. The student(s) should indicate their research interests and plans; a one page abstract of a proposed talk is desirable. A letter verifying that the student is in good standing should be sent independently by a faculty adviser. This letter should give the student's GPA. We will be pleased to consider joint proposals which would include the expenses of several students. Send your application to: FAX: (415) 723-2411 (Write "Student Support" on Fax.) E-mail: pc13@sccm.stanford.edu REGISTRATION Registration is important. Due to space limitations we must limit participation to the first 100 registrants. There are no registration fees but attendees are responsible for their expenses, including dinner Friday night. Note however that the restaurant will be reasonably priced. Please address your registration form and enquiries for local arrangements to Ms. Cathy Warmbier, Attn. Parallel Circus 465, CSRL University of Illinois at Urbana-Champaign Urbana, IL 61801-2307 warmbier@csrd.uiuc.edu FAX: (217)244-1351; Tel. (217)244-1340 ORGANIZERS Gene Golub Dept. Computer Science Stanford University golub@sccm.stanford.edu Stratis Gallopoulos CSRD and Dept. Computer Science University of Illinois stratis@csrd.uiuc.edu Paul Saylor Dept. Computer Science University of Illinois saylor@cs.uiuc.edu Paul Van Dooren CSL and Dept. Electrical & Computer Engineering University of Illinois vdooren@csl.uiuc.edu ------------------------------ From: Jan Mandel Date: Tue, 16 Mar 93 13:49:17 MST Subject: Postdoc at University of Colorado at Denver Postdoctoral Research Associate University of Colorado at Denver The Computational Mathematics Group at the University of Colorado at Denver expects to offer one visiting position for the academic year 1993/94 for work on NSF funded projects in the areas of high-performance computing and intelligent iterative solution methods for finite element equations. The successful candidate should have background in some of the following areas: 1. parallel computing and software engineering, including experience with team development and large software projects 2. multigrid and domain decomposition methods for finite elements for PDEs, either practical or theoretical 3. artificial intelligence, in particular neural networks, self-organizing systems, and expert systems 4. mathematical foundations of finite element analysis The candidate should have recently obtained or be about to obtain a PhD degree in a relevant area of Mathematics, Computer Science, or Engineering. The search starts immediately and will continue until the position is filled. The stipend will be up to $30,000 per year. The postdoctoral associate will be expected to design, develop, implement, analyze, and publish new solution methods and to successfully interact with the rest of the team at the Department of Mathematics in Denver and the Departments of Aerospace Engineering and Computer Science at the University of Colorado at Boulder. He or she will have access to advanced computers, including CM-5, KSR-1, and Intel Paragon, as well as a local area network of SUN and DEC workstations, and the use of own SUN SPARC workstation. The Denver/Boulder area is located at the foothills of Rocky Mountains and offers excellent opportunities for skiing and hiking. Please send vita, selected publications, and arrange for two letters of recommendation to be sent to Jan Mandel Computational Mathematics Group Campus Box 170 University of Colorado at Denver Denver, CO 80217-3364 e-mail: jmandel@colorado.edu The University of Colorado is an Affirmative Action/Equal Opportunity employer. ------------------------------ From: University of Dortmund Date: Wed, 17 Mar 93 11:23:27 SET Subject: Position at the University of Dortmund, Germany AUSSCHREIBUNG Am Fachbereich Mathematik der Universitaet Dortmund ist eine Hochschuldozentur (C2) zu besetzen. Bevorzugt werden Bewerber/Bewerberinnen der Arbeitsrichtung Stochastik. Von dem Stelleninhaber wird die Beteiligung an der Ausbildung der Studenten der Mathematik, der Wirtschaftsmathematik und anderer Fachrichtungen in Wahrscheinlichkeitsrechnung erwartet. Erwartet wird ferner die Beteiligung an Aufgaben der Selbstverwaltung. Habilitation fuer das Fach Mathematik oder habilitationsadaequate Leistungen werden vorausgesetzt. Die Einstellungsvoraussetzungen fuer Hochschuldozenten bestimmen sich nach Paragraph 49 WissHG des Landes NRW. Hiernach werden Hochschuldozenten fuer die Dauer von sechs Jahren zu Beamten auf Zeit ernannt. Schwerbehinderte Bewerber oder Bewerberinnen mit gleicher Eignung werden bevorzugt behandelt. Die Universitaet Dortmund strebt eine Erhoehung des Anteils von Frauen in Forschung und Lehre an und bittet deshalb Wissenschaftlerinnen nachdruecklich um ihre Bewerbung. Bewerbungen sind bis zum 4. Mai 1993 zu richten an den Dekan des Fachbereichs Mathematik, Universitaet Dortmund, Postfach 50 05 00, 4600 Dortmund 50, Tel. 0231/755-3050. Bitte benutzen Sie nur den schriftlichen Weg fuer Ihre Bewerbung, der Dekan. ------------------------------ From: Zhao Jin-xi Date: 20 Mar 1993 10:07:36 +0000 Subject: Contents, Numerical Mathematics CONTENTS OF A NEW JOURNAL ON NUMERICAL MATHEMATICS Numerical Mathematics (A Journal of Chinese Universities, English Series) Volume 1, Number 1 CONTENTS Wang Yu, Feng Guo-chen, Liu Ting-zhan: A interior point algorithm for convex nonlinear programming problems Wu Bai-sheng, Li Rong-hua: Theory and computation of secondary bifurcations near a double eigenvalue Sun Ji-guang: Condition numbers of a multiple eigenvalue Deng Nai-yang, Xiao Yi, Zhou Fang-jun: Nonmonotone curved search methods for unconstrained optimization Jiang Er-xiong, Peter C.B. Lam: Two kinds of shift using \beta_{2} in QL algorithm Lei Jin-gan, Lin Chun-lei: Approximate bifurcation of obstacle prolems with Out-volume force Han Hou-de: A boundary element method for signorini problem in linear elasticity Zhao Feng-guang, Wang De-ren: On the global algorithm for finding zeros of general mappings over R^{2} Lu Lin-zhang: On sign function and square root methods for solution of real algebraic Riccati equations Zhang Ping-wen: A symmetrical viscosity splitting scheme for the Navier-Stokes equations Yu De-hao: The approximate computation of Hypersingular integrals on interval == Zhao Jin-xi ( Dept. of Math., Nanjing University, Nanjing 210008,China) E-mail: ZHAO@ITNVAX.CINECA.IT ------------------------------ End of NA Digest ************************** -------