Subject: NA Digest, V. 95, # 34 NA Digest Sunday, August 27, 1995 Volume 95 : Issue 34 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Need Algorithm to Solve Matrix Equation Slides for Numerical Analysis Course Discrete Inequalities Fortran Program Performance Tools Change of Address for Sanzheng Qiao Change of Address for Floyd Hanson Temporary Change of Address for Sven Hammarling Cornell Theory Center Workshop Parallel CFD '96 Conference in Italy Conference on Numerical Combustion Position at Catholic University of Louvain Position at University of Michigan Position at Pacific Gas and Electric Contents, Constructive Approximation Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. URL for the World Wide Web: http://www.netlib.org/na-net/na_home.html ------------------------------------------------------- From: Edmond Nadler Date: Wed, 23 Aug 1995 20:47:47 +0000 (GMT) Subject: Need Algorithm to Solve Matrix Equation I am looking for a fast algorithm to solve the following equation for the matrix X, and would appreciate any suggestions. Sum_i (A_i * X * B_i) = C where A_i and B_i are square, symmetric, banded matrices, with bandwidth typically 7 (i.e., 3 above and 3 below the main diag.); A_i mXm, X & C mXn, B_i nXn, where m & n can go up to 100 or so; typically 3 terms in the sum. A_i and B_i are actually inner products of sets of B-Splines (and their derivatives), so if the solution that takes advantage of that, so much the better. Thank you very much. Edmond Nadler Cimatron Ltd. Givat Shmuel, Israel ed@cimatron.co.il ------------------------------ From: Aaron Naiman Date: Mon, 21 Aug 1995 11:55:23 +0300 Subject: Slides for Numerical Analysis Course Dear fellow numerical analysts, During the Spring '95 semester, I taught a course in Numerical Methods. Inspired by Pete Stewart's Numerical Analysis Afternotes (see ftp://thales.cs.umd.edu/pub/afternotes), I decided to write up my notes (also after the fact). One main difference between the Afternotes and my notes is that I have prepared (LaTeX) slides of my classes, and plan to use them in future courses. An additional difference is that I taught engineers, and therefore the course was not all that theorem-oriented. The notes follow very closely the text I used: Numerical Mathematics and Computing, Third Edition by Ward Cheney & David Kincaid. c 1994 by Brooks/Cole Publishing Company. If you are interested, please contact me at naiman@math.jct.ac.il . Happy computing! Aaron Naiman Aaron Naiman | Jerusalem College of Technology | University of Maryland, IPST (Aharon) | naiman@math.jct.ac.il | naiman@glue.umd.edu ------------------------------ From: Olivier Goyon Date: Fri, 25 Aug 1995 18:37:29 --100 Subject: Discrete Inequalities Dear colleagues, I am currectly interested in transposing the proofs of existence and uniqueness with continuous operators into discrete ones (finite difference). Does anyone have any references about this, for example discrete versions of inequalities like Poincare's one. Olivier GOYON goyon@lanors.matups.fr ------------------------------ From: Christoph Schmid Date: Fri, 25 Aug 1995 11:55:55 +0200 Subject: Fortran Program Performance Tools As part of a research project I am evaluating and developing tools for the performance analysis of Fortran programs. The aim is to make it as easy as possible to find out if a program exploits the hardware resources to a satisfactory degree or, if not, which parts of the program are responsible for the performance degradation and what kinds of improvement are to be made. I would be glad if you could tell me about the existence of such tools and how I could get them. Yours sincerely, Christoph Schmid Christoph Schmid email: schmid@titania.tuwien.ac.at Inst. f. Applied a. Numerical Mathematics Technical University Vienna Wiedner Hauptstrasse 8-10 A-1040 Vienna FAX: +43 1 586 80 93 Austria ------------------------------ From: Qiao Sanzheng Date: Mon, 21 Aug 1995 09:33:22 +0800 Subject: Change of Address for Sanzheng Qiao My new address is: Qiao Sanzheng Department of Electronic Engineering City University of Hong Kong Tat Chee Avenue Kowloon, Hong Kong Phone: (852)2788-7783 Fax: (852)2788-7791 Email: eeszqiao@cpccux0.cityu.edu.hk ------------------------------ From: Floyd Hanson Date: Sat, 26 Aug 95 19:04:14 -0600 Subject: Change of Address for Floyd Hanson I have returned to my permanent position after a year on sabbatical leave: Professor Floyd B. Hanson Laboratory for Advanced Computing Department of Mathematics, Statistics, and Computer Science University of Illinois at Chicago 851 S. Morgan St., 322SEO, MC 249 Chicago, IL 60607-7075 OfficeTel: 312-413-2142 DeptTel: 312-996-3041 DeptFax: 312-996-1491 Email: hanson@math.uic.edu ------------------------------ From: Sven Hammarling Date: Tue, 22 Aug 95 15:04:22 +0100 Subject: Temporary Change of Address for Sven Hammarling As from 1st September I shall be spending a sabbatical year at the University of Tennessee at Knoxville. My address will be: Sven Hammarling Department of Computer Science University of Tennessee 107 Ayers Hall Knoxville, TN 37996-1301 USA Email: hammarli@cs.utk.edu (sven@nag.co.uk will also still work) Tel: +1 615 974 8295 Fax: +1 615 974 8296 ------------------------------ From: Jeanne Butler Date: Mon, 21 Aug 1995 07:46:03 -0400 Subject: Cornell Theory Center Workshop PARALLEL PROGRAMMING on the IBM RS/6000 SP October 23 - 26, 1995 Cornell Theory Center Ithaca, NY Registration deadline: September 26, 1995 Cornell Theory Center (CTC), a nationally funded high performance computing center, is offering a series of workshops on parallel programming techniques for its IBM RS/6000 Scalable POWERparallel SP. This workshop series begins with two days of introductory sessions, designed to help parallel programming novices get started. This is followed by a new offering: two days of special topics, to address the needs of intermediate and expert parallel programming practitioners. These workshops are offered consecutively, allowing participants to register for the specific days or sessions that meet their needs. CTC's SP consists of 512 RISC processors connected by a high performance switch. The size and power of this system, which is the largest of its kind in the world, allow parallel programmers to decrease the wallclock time needed to run their programs, or to attack larger problems by running over larger numbers of nodes. The SP programming model is distributed memory. Registration is on a daily basis for Day 1 and Day 2 of the workshop. Day 1 covers introductory material on parallel programming with emphasis on CTC's SP. Day 2 covers MPI, a message passing library standard for parallel programming. While Day 1 is designed for parallel programming novices, Day 2 is intended for both novices and more experienced programmers. Both days include extensive hands-on labs on the IBM SP. Registration for Day 3 and Day 4 is on a session-by-session basis. The special topics sessions offered on these two days take a more in-depth look at specific issues in high performance computing, and are designed for intermediate and expert parallel programmers. This announcement can also be found on the internet via the World Wide Web at: http://www.tc.cornell.edu/Events/SP.Oct95 Or can be retrieved via ftp from: ftp.tc.cornell.edu/pub/oct95.workshop ------------------------------ From: Pasquale Schiano Date: Fri, 25 Aug 95 14:04:13 +0200 Subject: Parallel CFD '96 Conference in Italy PARALLEL CFD '96 CAPRI, ITALY MAY 20-23, 1996 ANNOUNCEMENT AND CALL FOR PAPERS Implementations and Results Using Parallel Computers CAPRI, ITALY -- MAY 20-23, 1996 Europa Palace Hotel organized by C.I.R.A. Conference Objective: To discuss recent developments and applications of Parallel Computing in CFD. Subject area: Novel parallel algorithms, parallel Euler and Navier Stokes solvers, parallel multigrid techniques, parallel implicit schemes, parallel unstructured solvers, parallel flow visualization and grid generation. Applications of interest include (but are not limited to): reacting flows, rarefied gas flows, multiphase flows, turbulence, hypersonic reentry problems, aerodynamic flows, climate modelling, parallel computing in aeronautics, astronautics, mechanical engineering, vehicle design and environmental engineering European Managing Committee chairman P. Schiano (CIRA, Italy) D. Emerson (CLRC,UK) A. Geiger(RUS,Germany) J. Periaux(Dassault Aviation,France) Scientific and Organizing Committe R.K.Agarwal, Wichita State University C.A.Lin, National Tsing Hua Univ. R. Blech, NASA Lewis D.Mc Carthy, Boeing B.Chetveruskin, Russian Academy of Science R.Peltz, Rutgers University A.Ecer, IUPUI N.Satofuka, Kyoto Inst. of Tech. I.Foster, Argonne National Laboratory V.Saxena, IBM P. Fox, IUPUI S.Taylor, California Inst. of Tech. J.Haeuser, Center for Logistic and Expert M.E.S. Vogels, NLR Systems C.Jenssen, SINTEF D. Weaver, Phillips Laboratories P. Leca, ONERA Detailed information can be obtained through the World-Wide-Web at: http://www.cira.it ------------------------------ From: Trini Flores Date: Fri, 25 Aug 95 12:47:42 EST Subject: Conference on Numerical Combustion Sixth International Conference on NUMERICAL COMBUSTION March 4-6, 1996 Le Meridien New Orleans Hotel New Orleans, Louisiana Conducted by SIAM with the cooperation of Institut National de Recherche en Informatique et en Automatique (INRIA) This conference is designed to bring together computational scientists, research and design engineers, and mathematical and physical scientists who are interested in the interdisciplinary area of numerical combustion. The conference will highlight the mutual interaction of designers, experimentalists, computational experts, and mathematicians in the development of new ideas and methods in the study of combustion. CONFERENCE THEMES The themes of the conference include, but not limited to: o Turbulence o Kinetics o Detonation o Flames o Pollution o Microgravity o Applications of parallel processing o Materials synthesis o Droplets and sprays o Ignition o Heterogeneous combustion o Energetic materials (propellants) o Simulation of internal engine and furnace combustion INVITED PRESENTATIONS The Transport of Combustion Products from Fires Howard Baum National Institute of Standards and Technology State-of-the-Art in IC Engine Combustion Modeling Sherif El-Tahry General Motors Research Laboratories Numerical Simulation of Premixed Flame Propagation in Closed Tube Kunio Kuwahara The Institute of Space and Astronautical Science, Japan Coupling of Chemical Kinetics with Flow and Molecular Transport Ulrich Maas Konrad-Zuse-Zentrum fur Informationstechnik Berlin, Germany Direct Simulations and Modeling of Flame/Wall Interactions Thierry Poinsot IMFT/CERFACS, France The Dynamics of Multi-Dimensional Detonation D. Scott Stewart University of Illinois, Urbana ORGANIZING COMMITTEE John Buckmaster (Co-Chair) Mitchell Smooke (Co-Chair) D. Scott Stewart (Co-Chair) Roland Borghi Sebastian Candel Robert Kee Bernard Larrouturou Elaine Oran Norbert Peters Bernd Rogg Tadao Takeno Jurgen Warnatz Charles Westbrook Forman A. Williams ELECTRONIC ACCESS Additional information regarding the conference can be accessed in electronic format through the World Wide Web: http://www.siam.org ------------------------------ From: Paul VanDooren Date: Sun, 20 Aug 95 15:02:21 CDT Subject: Position at Catholic University of Louvain ACADEMIC POSITION AT CATHOLIC UNIVERSITY OF LOUVAIN Academic Position at Catholic University of Louvain (Louvain-la-Neuve - Belgium), Department of Mathematical Engineering. The Department of Mathematical Engineering invites applications for an academic appointment in mathematical engineering, with preference for one of the following topics : - numerical analysis and scientific computing - stochastic modelling - discrete mathematics, combinatorics, graphs and algorithms - mathematical system theory - optimisation and variational calculus. The applicant will have a teaching load in applied mathematics. Applicants should demonstrate both breadth of interest and promise in research and teaching. Tenured positions will be considered but appointment rank will depend on the candidates and their records ofaccomplishment. Applicants will be expected to teach in French, possibly after a certain transition period. The Catholic University of Louvain is a 550 year old university located on a new university campus created in 1972 in Louvain-la-Neuve. The new campus now has over 20,000 students and about 5,000 members of staff. The Mathematical Engineering Department hosts research programs in the different topics listed above. The department also has close ties with the Center for Operations Research and Econometrics (CORE), the Center for Systems Engineering and Applied Mechanics (CESAME) and the Institute for Pure and Applied Mathematics (MAPA). The applicant should have a doctoral degree in engineering (or equivalent), postdoctoral experience, and a recognized scientific publications record. The appointment will start in October 1996. The applicants should furnish a curriculum vitae, a list of publications, an abstract of five selected publications, the name and address of four referees including two belgian referees who are not members of UCL, before 15 December 1995 to the Rector of the university: Recteur de l'Universite Catholique de Louvain, 1, Place de l'Universite B-1348 Louvain la Neuve. Belgium (The reference number of the position N 96/16 should be mentioned) Further information can be obtained from : Professor Georges Bastin Head of the Department of Mathematical Engineering Catholic University of Louvain Batiment Euler 4, avenue Georges Lemaitre B-1348 Louvain-la-Neuve BELGIUM Fax : + 32 10 47 21 80 Email : bastin@auto.ucl.ac.be ------------------------------ From: Robert Krasny Date: Wed, 23 Aug 1995 16:07:02 -0400 Subject: Position at University of Michigan UNIVERSITY OF MICHIGAN Department of Mathematics The Department of Mathematics at the University of Michigan has started an initiative in applied, computational and interdisciplinary mathematics. Several appointments will be made at the tenured and tenure-track levels. At least one position is designated for a senior appointment at the Full Professor level. The initiative is searching broadly for applicants with expertise in applying mathematics to solve problems in science, engineering, business and/or industry. Excellence in research and teaching is essential. The positions will be filled on an ongoing basis. To apply, send a cover letter and cv by mail to: Prof. B. A. Taylor, Chairman, Department of Mathematics, University of Michigan, Ann Arbor, MI, 48109-1003. The University of Michigan is a non-discriminatory affirmative action employer. ------------------------------ From: PG&E Date: Thu, 24 Aug 95 13:16:49 PDT Subject: Position at Pacific Gas and Electric Systems Engineer/Operations Research Analyst - 2 positions Pacific Gas and Electric Company, the nation's largest investor-owned combined utility, is currently undergoing dramatic business changes and is seeking talented people to play a significant role in this effort. If you are an experienced Systems Engineer, Technical Consultant or Computer Systems professional, consider this opportunity to enhance your career. We currently have the following positions open within our Applications and Systems Integration department of Computer and Telecommunications Services: Systems Engineer/Operations Research Analyst - 2 positions Provide mathematical modeling, software development and consulting for gas and electric utility clients in the areas of portfolio and risk analysis, resource scheduling, energy trading, electric industry restructuring and grid services. Successful candidates will be responsible for providing consulting services, defining client needs and developing methodologies and software to solve gas and electric planning and operational problems requiring advanced analytical expertise in areas such as electrical engineering, power systems analysis, operations research, optimization, simulation, computational and numerical methods, statistical methods, financial modeling and economics. A Ph.D. in Electrical Engineering, Operations Research, or equivalent, is required. We offer an excellent compensation and benefits package, along with strong opportunities for career growth. For immediate consideration, please send/fax your resume, cover letter and salary requirements to: PG&E, Management Recruitment/ASI, 201 Mission P15C, PO Box 770000, San Francisco, CA 94177. Fax (415) 973-5866. Please reference job code 95-4. ------------------------------ From: E. B. Saff Date: Thu, 24 Aug 1995 17:39:54 -0400 Subject: Contents, Constructive Approximation CONSTRUCTIVE APPROXIMATION CONTENTS Volume 11, Number 3, 1995 287 Xin Li On the Lagrange Interpolation for a Subset of c^k Functions 299 D. Leviatan and V.Operstein Shape-Preserving Approximation in L_p 321 L. J. Lange Convergence Region Inclusion Theorems for Continued Fractions K(a_n / 1) 331 S. W. Jha and D. S. Lubinsky Necessary and Sufficient Conditions for Mean Convergence of Orthogonal Expansions for Freud Weights 365 Ingrid Daubechies and Ying Huang How does Truncation of the Mask Affect a Refinable Function? 381 R. Szwarc A Counterexample to Subexponential Growth of Orthogonal Polynomials 391 E. Moskona, P. Petrushev, and E. B. Saff The Gibbs Phenomenon for Best L_1 -Trigonometric Polynomial Approximation 417 A. L. Levin and D. S. Lubinsky Erratum: Christoffel Functions, Orthogonal Polynomials, and Nevai's Conjecture for Freud Weights RESEARCH PROBLEMS 419 P. Erdos Some Old and New Problems in Approximation Theory: Research Problems 95-1 ------------------------------ End of NA Digest ************************** -------