Subject: NA Digest, V. 93, # 37 NA Digest Monday, October 4, 1993 Volume 93 : Issue 37 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Code Sought for Singular Boundary Value Problem Computing Klein's Modular Function Simple handling of IEEE exceptions on SUN Re: IEEE Reality Check Complexity of Matrix Multiplication High School Mathematics Magazines - Inquiry Brazillian Society for Applied and Computational Mathematics Help Sought for IMSL and Salford Fortran SIAM Student Paper Prizes 3DVIEWNIX: A System for Multidimensional Visualization Southeastern SIAM Meeting Computer Aided Geometric Design in Malaysia IEEE Control and Signal Processing Conference in Prague Pacific Northwest Numerical Analysis Seminar Mathematics and Computation from the Materials Sciences Object-Oriented Numerics Conference IMACS Workshop on Turbulence Positions at the U. of New Mexico Position at Johann Wolfgang Goethe University, Frankfurt Positions at Hong Kong Baptist College Position at Old Dominion University New Journal, Optimization MEthods and Software Contents, Journal Computation and Applied Mathematics Contents, ACM Transaction on Mathematical Software 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: Mahavier William Ted Date: Sun, 26 Sep 93 21:36:45 CDT Subject: Code Sought for Singular Boundary Value Problem I am interested in acquiring codes for solving singular boundary value problems of the type listed below, Q(t) Y'(t) = F(t,Y(t)) on [a,b] with boundary conditions A Y(a) + B Y(b) = C. If anyone knows of such codes, please e-mail me at ted@sol.acs.unt.edu. ------------------------------ From: Keith Briggs Date: Mon, 27 Sep 1993 15:45:43 +0930 (CST) Subject: Computing Klein's Modular Function How does one calculate Klein's modular function J(tau) numerically? (Ref: Apostol, Modular functions and Dirichlet series in Number Theory, p. 15) Presumably the Fourier series (thm 1.17) is slowly convergent. Any ideas would be appreciated. Keith Keith Briggs, Department of Applied Mathematics, University of Adelaide, South Australia 5005. Phone: (08) 303 5577 Fax: (08) 232 5670 ------------------------------ From: Jan Mandel Date: Thu, 30 Sep 1993 11:24:36 -0600 Subject: Simple handling of IEEE exceptions on SUN Here is what I put at the beginning of every program on SUN to see where it went wrong instead of having Inf's and NaN's propagate: external abort,ieee_handler integer i,ieee_handler i=ieee_handler('set','division',abort) i=ieee_handler('set','overflow',abort) i=ieee_handler('set','invalid',abort) Every IEEE machine should come with a simple flag on the compiler that would cause abort if floating point exception occurs, just like the three lines above do. In fact, it should be the DEFAULT so that those of us who do not want to worry about NaN's do not have to. Thanks to Joe Grcar for bringing this common gripe up! Jan Mandel jmandel@colorado.edu ------------------------------ From: Mike Peterson Date: Mon, 27 Sep 93 10:51:02 -0400 Subject: Re: IEEE Reality Check >Dean Schulze wrote >Subject: Reality check for an IEEE arithmetic critic > > Joe Grcar's complaints about IEEE arithmetic need to be addressed because >some of the things that he says are simply wrong. He made this complaint in >August of 1991: > >>There is no machine epsilon. > > Yes there is. Numbers can underflow, however, to de-normalized values >that result in a loss of precision. If you think this is a problem how are >you dealing with non-IEEE arithmetic that simply underflows to zero without >telling you about it? While there is a machine epsilon, it is extremely difficult to determine it using regular programming techniques, especially with the compiler optimizations being used today. What you will get is the unnormalized epsilon, while what is generally "wanted" is the normalized epsilon. Codes I have seen lately have resorted to setting epsilon in a DATA statement (or C equivalent), which is non-portable. >>Pardon me for saying so, but I think your opinion >>of ieee arithmetic would be different if you had >>a real job instead of an academic one. Scientists >>and engineers don't hae time to read arcane >>documentation about trivia in some other field. > > Well, I am a scientist and I have to read many papers every month, and >I found that reading Goldberg's paper was beneficial. But if Grcar doesn't >have time to read one paper where does he get the time to write complaints >about IEEE arithmetic for NA Digest? > > Also, I think that the people at Motorola, Intel, Sun, the Free Software >Foundation, Symantec, etc., etc., who implement IEEE arithmetic in hardware >and software, will be quite surprised to hear that they don't have real jobs. I sympathize greatly with Joe Grcar - porting/creating/checking software is made extremely difficult by the propagation of NaN/INF values. The problem is not IEEE arithmetic, or anybody else's arithmetic; the "villains" in this are the compiler vendors who set the compiler default behaviour, and don't supply compiler switches to easily modify the default behaviour (calling vendor-specific routines or otherwise hacking on the source code is not an acceptable alternative since this creates non-portable code). Why anyone would want a default behaviour to allow a program to continue executing after dividing by 0 (either integer or floating point), or creating a NaN by whatever means (e.g. fp overflow), is beyond me. In my many years of programming, I can't think of one case where I would want this to happen. Performing such operations is a clear indication of a program(mer) error, and I want to know about it right away, not hours/days later when the job finishes printing pages of NaNs, when debugging has become next to impossible. It may be much more efficient for the cpu to deal with exceptions automatically rather than trapping (and blowing away the instruction pipeline), but it doesn't help the user much. If IEEE specified the default behaviour to be "carry on regardless", then the committee responsible for this doesn't live in the real world. Mike. Mike Peterson, SysAdmin, U/Toronto Chemistry E-mail: system@alchemy.chem.utoronto.ca Tel: (416)978-7094 Fax: (416)978-8775 ------------------------------ From: Gary Howell Date: Tue, 28 Sep 93 11:14:40 -0400 Subject: Complexity of Matrix Multiplication We all know how to count operations. Clearly, for example, squaring an n x n matrix requires n cubed multiplications, i.e., n squared inner products of length n. For the last fifteen years or so, this clarity has been quite suspect. Many algorithms have been proposed that lessen the computational burden below order n cubed. Some are clearly impractical. I would like to ask " given no more than n processors, assuming practical communication overheads and storage", what is the lowest parallel time for squaring a dense matrix. The practical answer should be implementable on the current generation of machines (Paradox, CM-5, SP-1, Meiko, etc.) using current software. I don't need to implement this just now but do have an interest in the answer. Gary Howell, Florida Tech, howell@zach.fit.edu ------------------------------ From: Paul Nevai Date: Sun, 3 Oct 1993 08:08:34 -0400 (GMT-0400) Subject: High School Mathematics Magazines - Inquiry {I know this may not be the proper place to post it so I apologize. Still, could you please help Dick out? Please respond to HIM directly at askey@math.wisc.edu. Thanks. Paul] Richard Askey wrote to Paul Nevai: Dear Paul, I am interested in knowing what countries have mathematics magazines for high school students and which ones do not. You have even more contacts than I do, so I wonder if you are also interested in this, and if so whether you could write to some of your friends. I want to know about existence, and what is included in such magazines. Dick Paul Nevai Department of Mathematics The Ohio State University ------------------------------ From: John Butcher Date: Tue, 28 Sep 93 20:21:40 +0000 (NZS) Subject: Brazillian Society for Applied and Computational Mathematics XVI Congresso Nacional de Matematica Aplicada e Computacional Universidade Federal de Uberlandia, Brazil 6 - 9 September 1993 The annual conference of the Brazillian Society for Applied and Computational Mathematics was held this year in the charming city of Uberlandia, some 500km North West of Rio de Janiero. The plenary lecturers were U. Ascher, J. Butcher, G. Golub, J. Mackenzie, M. Maierallo, J. Martins, R. Ohayan and R. Sampaio and the overall programme included also 14 one hour lectures, several panel discussions, and a large number of research seminars organised into 17 main divisions. Four mini-courses, intended mainly for graduate students, had the titles Computational Matrix Algebra, Introduction to Computational Fluid Dynamics, Ecological Mathematics and Introduction to Supercomputing. The local organising committee was chaired by the remarkable Celia A. Z. Barcelos. Professor Barcelos seemed to be able to do many things simultaneously, from attending to many strands of essential organisation to entertaining the many guests to her University. Some nice features of the conference, amongst many, were the large number of graduate students taking part and the elegant certificates of participation personally signed by Julio Clayessen, the President of the Society. Interspersed with the scientific programme were some enjoyable musical events. I tried, without much success, to teach myself some basic Portuguese before going to Brazil but it was unnecessary because the use of English is generously accepted. The only phrase that seemed to me to be essential was "tudo bem" (pronounced like tuda bay with the last vowell nasal). It means "all's well" and sums up my lasting impression of the conference, the cuisine, the warm and friendly people, and the country as a whole. ------------------------------ From: Jan Chleboun Date: Tue, 28 Sep 93 17:14:31 EDT Subject: Help Sought for IMSL and Salford Fortran Inst. of Theor. and Appl. Mechanics Prague, Czech Republic Salford FTN77/486 is a FORTRAN compiler running on IBM compatible PC/486. The compiler has been developed at the Salford University, Great Britain. IMSL Libraries for the Salford FTN77/486 compiler are available from Euro Soft, Texas, USA. We possess both the compiler and the libraries. However, we have problems to run linear system solvers. That is why we would like to discuss our troubles with other users. Is anyone familiar with the Euro Soft - IMSL Libraries for FTN77/486? Any experience would be greatly appreciated. Jan Chleboun utam@cspgas11.bitnet Inst. of Theor. & Appl. Mechanics, Prague ------------------------------ From: Allison Bogardo Date: Wed, 29 Sep 93 11:08:55 EST Subject: SIAM Student Paper Prizes SIAM Student Paper Prizes The annual SIAM Student Paper Prizes will be awarded during the 1994 SIAM Annual Meeting. If you are a student or know of a student who would like to take part in the competition, here are the details: The authors of the three best papers in applied and computational mathematics written by students and submitted to SIAM will be invited to attend the 1994 annual meeting in San Diego, July 25-29. Each winner must present his/her paper at the meeting and will receive a $750 cash award as well as gratis registration for the meeting. Winners will be awarded calligraphed certificates at a special prize ceremony at the meeting. Papers must be singly authored and not previously published or submitted for publication to be eligible for consideration. To qualify, authors must be students in good standing who have not received their PhDs at the time of submission. In submitting their work for publication, authors are asked to consider SIAM journals. Submissions must be received by SIAM on or before March 15, 1994. Submissions, which must be in English, can be sent by regular mail or fax. Each submission must include (1) an extended abstract NOT LONGER THAN 5 PAGES (including bibliography); (2) the complete paper, which will be used solely for clarification of any questions; (3) a statement by the student's faculty advisor that the paper has been prepared by the author indicated and that the author is a student in good standing; (4) a letter by the student's faculty advisor describing and evaluating the paper's contribution; and (5) a short biography of the student. Submissions will be judged on originality, significance, and quality of exposition. The winners will be notified by June 1, 1994. If you have any questions, please contact: Allison Bogardo SIAM 3600 University City Science Center Philadelphia, PA 19104-2688 Telephone: (215) 382-9800 E-mail to bogardo@siam.org Fax to (215) 386-7999 ------------------------------ From: Jay Udupa Date: Tue, 28 Sep 93 13:32:42 EDT Subject: 3DVIEWNIX: A System for Multidimensional Visualization 3DVIEWNIX : A DATA-, MACHINE-, AND APPLICATION- INDEPENDENT SOFTWARE SYSTEM FOR THE VISUALIZATION MANIPULATION AND ANALYSIS OF MULTIDIMENSIONAL IMAGE 3DVIEWNIX is a transportable, very inexpensive software system developed by the Medical Image Processing Group, Department of Radiology, University of Pennsylvania, Philadelphia. It has state-of-the-art capabilities for visualizing, manipulating, and analyzing multidimensional image data. It is developed to be as standard as one could possibly make. This educational software system will be distributed with source code and all documens for a fee of $1,000. PURPOSE OF 3DVIEWNIX (1) To promote widespread use of 3D imaging (2) To promote cooperative research - technical and applied - in 3D imaging (3) To enable end users and researchers to set up a very inexpensive, state-of-the-art, 3D imaging system UNIQUE FEATURES OF 3DVIEWNIX (1) Transporable - based on UNIX, X-windows, and C (2) Based on a multidimensional generalization of ACR-NEMA standards of data representation (3) Application-independent (4) Image dimensionality independent (5) Can handle rigid, non-rigid, static, and dynamic objects and object assemblies (6) Can handle object information from multiple modalities and longitudinal acquisitions (7) Multitudes of visualization, manipulation, and analysis methods incorporated (8) Open software system distributed with source code and documents 3DVIEWNIX OPERATIONS (1) Preprocessing: data conversion, ROI, filtering,interpolation, segmentation, classification, isosurfacing (2) Visualization: reslicing, several surface and volume rendering modes (3) Manipulation: cutting, separation, reflection, segment movement (4) Analysis: linear and curvilinear distance on surfaces, speed,rate of change of distance,ROIstatistics, volume,rate of change of volume, registration objects and scenes, kinematic analysis. For further information contact: Dr. Jayaram K. Udupa Medical Image Processing Group University of Pennsylvania Department of Radiology 418 Service Drive - 4th Floor Blockley Hall Philadelphia, PA 19104-6021 Phone: (215) 662-6780 FAX: (215) 898-9145 email: jay@jay.mipg.upenn.edu ------------------------------ From: Bob Plemmons Date: Mon, 27 Sep 93 15:15:30 EDT Subject: Southeastern SIAM Meeting Meeting Announcement - Call for Papers Southeastern-Atlantic Section of SIAM March 25-26, 1994 Wake Forest University Winston-Salem, North Carolina Invited Speakers: Shui-Nee Chow, Georgia Institute of Technology. "Lattice Dynamics"; Jack Dongarra, University of Tennessee and Oak Ridge Nat. Lab. "Recent Work in Parallel Algorithms for Linear Algebra"; Avner Friedman, Director IMA, University of MN, SIAM President. "Free Boundary Problems for Systems of PDE". Invited Minisymposia: "Fluids and Waves" Joel D. Avrin (organizer), North Carolina at Charlotte J. Thomas Beale, Duke University Michael Renardy, Virginia Tech Michael E. Taylor, North Carolina at Chapel Hill "Applied Mathematics in Industry" Robert E. Fennell (organizer), Clemson University William Browning, Applied Mathematics Inc. Karen Dunlap, Bellcore Michael Grabbe, BDM Engineering Services Co. Kevin Schweiker, Hercules Corporation "Scientific Computing" Robert E. Funderlic (organizer), NC State University Steven L. Lee, Oak Ridge National Laboratory Skip Thompson, Radford University Jeffrey O. Young, National Oceanic and Atmospheric Admin., U.S. Department of Commerce "Applications of Mathematics in Government Laboratories" Esmond G. Y. Ng (organizer), Oak Ridge National Lab. Michael Berry, University of Tennessee Ed D'Azevedo, Oak Ridge National Laboratory Noel Nachtigal, Oak Ridge National Laboratory Barry Peyton, Oak Ridge National Laboratory Contributed Papers: Several sessions of fifteen minute presentations of contributed papers will be held. Papers in all areas of applied mathematics are welcome. To contribute a paper send an abstract (preferably by e-mail) of no more than 100 words by February 15, 1994, in LATEX or ascii directly to the conference secretary: Carol Lavis lavis@deacon.mthcsc.wfu.edu Abstracts should contain the title, author(s), affiliation(s), along with the body of the abstract. Student Papers: Sessions of fifteen minute presentations of student papers will be held, and cash prizes will be given for the best student papers. Students who desire to contribute a paper should send a title and abstract under the same guidelines as in the previous paragraph and should clearly mark on the abstract that the contribution is a student paper. Meeting Details: The meeting will be held on the campus of Wake Forest University in Winston-Salem, North Carolina, on Friday and Saturday, March 25-26, 1994. It will begin at 1:00 p.m. on Friday March 25 and end early Saturday afternoon. Winston-Salem is located in the Piedmont section of North Carolina on Interstate 40 and is close to the intersections of Interstate 40 with both Interstate 85 and Interstate 77. Several major airlines serve the region through the Piedmont Triad International Airport located at Greensboro, North Carolina which is twenty-five miles east of Winston-Salem. Additionally a USAir serves Winston-Salem directly from the Charlotte, North Carolina airport. A second announcement of the meeting will be mailed in early January 1994 and will contain additional information including a list of motels and directions to the meeting site. The registration fee will be minimal. Bob Plemmons plemmons@mthcsc.wfu.edu ------------------------------ From: Hassan Said Date: Wed, 29 Sep 93 07:56:52 +0000 (MYT) Subject: Computer Aided Geometric Design in Malaysia INTERNATIONAL CONFERENCE ON COMPUTER AIDED GEOMETRIC DESIGN JULY 4 - 8, 1994, PENANG MALAYSIA Location: The conference will be held at the Ferringhi Beach Hotel, Penang, Malaysia. The hotel is situated 12 Km from the city centre and it overlooks the lovely stretch of the Ferringhi Beach. Invited speakers:W.Boehm(Germany),Chui(USA),Dahmen(Germany),Farin(USA), Farouki(USA),Foley(USA),Goldman(USA),Goodman(UK),Hagen(Germany), Kimura(Japan),Lee(Singapore),Lyche(Norway),Micchelli(USA),Pham(Australia), deRose(USA),Unsworth(UK),G.Chang(China). Proceedings: Papers will be published in the edited volume of Annals of Numerical Mathematics, published by Baltzer publishing of Basel. CALL FOR PAPER:For submitting a research talk, please submit your abstract to the secretariat before Dec.31 1993.The abstract must be one page maximum. SECOND ANNOUNCEMENT: If you wish to receive our second announcement, please let us know your address. Secreteriat: Dr.H.B.Said School of Mathematical & Computer Sciences Universiti Sains Malaysia 11800, Penang, Malaysia Fax:60-4-870910 e-mail: hassan@cs.usm.my ------------------------------ From: Jiri Kadlec Date: Fri, 1 Oct 93 10:12:02 +0100 (MET) Subject: IEEE Control and Signal Processing Conference in Prague The Institute of Electrical and Electronics Engineers First Announcement Call for Papers IEEE European Workshop on COMPUTER - INTENSIVE METHODS IN CONTROL AND SIGNAL PROCESSING Can We Beat the Curse of Dimensionality? September 7-9, 1994 Prague, Czech Republic Organized by Institute of Information Theory and Automation Academy of Sciences of the Czech Republic and School of Engineering & Information Sciences University of Reading, UK Participating Society IEEE Control Systems Society INTRODUCTION The aim of this IEEE Workshop is to bring together researchers and practitioners working in Academia, Government and industry. Particular emphasis will be placed on ``The Curse of Dimensionality'', i.e. the extreme dimensionality of computations connected with the implementation of theoretically optimal mathematical procedures of inference and decision making. TOPICS The extreme dimensionality of computations connected with implementation of theoretically optimal mathematical procedures of inference and decision-making is a serious obstacle in a variety of fields such as control, signal processing, image reconstruction, pattern recognition, nonparametric estimation, expert systems etc. The ``curse of dimensionality'' has often been cured by just 'ad hoc' simplifications at the cost of losing a lot from the theoretical properties of the optimal solution. Recent progress in attacking high-dimensional problems in the above mentioned fields makes us believe that it is the right time to think of picking up widely applicable principles and methods of handling or at least approaching the problem. The key idea of the Workshop is that the problem is common to a number of different disciplines such as control theory, mathematical statistics, system identification, information theory, statistical mechanics, artificial intelligence (to name a few), and that we can and we should learn from each other. Because of the strongly inter-disciplinary character of the Workshop, we plan to give a considerable space to invited lectures by leading specialists in various fields. The Workshop will further include several sessions of contributed papers, poster sessions and computer demonstrations. - Parallel algorithms and architectures - Neural nets - Model reduction - Finite-dimensional estimation, filtering and control - Complexity - Multivariate integration and optimization - Non-traditional approaches INTERNATIONAL PROGRAMME COMMITTEE K. Warwick UK ... Chairman P. Antsaklis USA J.G. McWhirter UK D. Atherton UK V. Mehrman D R.W. Brochett USA S.K. Mitter USA A.R. Barron USA M. Moonen B G. Cybenko USA P. Parks UK R.M.C. De Keyser B E. Rogers UK K. Hangos H W.J. Runggaldier I K. Glover UK A. Smith UK P. Kaczorek P Y. Tsypkin RUS M.Karny CZ A. Zomaya AUS R. Kulhavy CZ NATIONAL ORGANIZING COMMITTEE M. Karny ...... Chairman A. Halouskova J. Kadlec L. Kulhava .... Workshop Editor P. Nedoma GENERAL ENQUIRIES M. Karny IEEE Workshop ``CMP'' Institute of Information Theory and Automation P.O. Box 18, 182 08 PRAGUE, Czech Republic Tel : +(42)(2)6641 3421, Fax : +(42)(2)6641 4903 E-mail: kulhava@utia.cas.cz (Internet) PAPER/PROGRAMME ENQUIRIES K. Warwick IEEE Workshop ``CMP'' Department of Cybernetics PO BOX 225, Whiteknights Reading RG6 2AY, Berkshire, UK Tel: +(734)318210, Fax: +(734)318220 ------------------------------ From: Randy Leveque Date: Fri, 01 Oct 93 02:37:04 +28416 Subject: Pacific Northwest Numerical Analysis Seminar Seventh Annual Pacific Northwest Numerical Analysis Seminar Saturday October 9, 1993 Guggenheim 224, University of Washington, Seattle Dave Chopp, University of Washington "Computing Self-Similar Solutions for Mean Curvature Flow" Jonathan Borwein, Simon Fraser University "Experimental evaluation of a class of series involving Zeta functions" Paul Carter, University of British Columbia "Computational Methods for the Shape from Shading Problem" Satish Reddy, Oregon State University "Transient Growth in Numerical Analysis and Hydrodynamic Stability" Tony Chan, UCLA "Domain Decomposition Methods" Dan Pierce, Boeing Computer Services "Rank Deficient Sparse Direct Methods and Why" For more information, send e-mail to pnwnas@amath.washington.edu ------------------------------ From: Trini Flores Date: Fri, 01 Oct 93 13:05:35 EST Subject: Mathematics and Computation from the Materials Sciences Conference on Emerging Issues in Mathematics and Computation from the Materials Sciences April 18-20, 1994 Pittsburgh Vista Hotel Pittsburgh, Pennsylvania Organized by the Center for Nonlinear Analysis, Carnegie Mellon University, and SIAM. DEADLINE FOR SUBMISSION OF ABSTRACTS: OCTOBER 12, 1993. Do not miss the opportunity. Submit now. Send via e-mail to: meetings@siam.org a title and 75-word abstract of your presentation, and your name and address. Thank you and we look forward to your participation. ------------------------------ From: Margaret Chapman Date: 1 Oct 93 10:17:33 PST Subject: Object-Oriented Numerics Conference FIRST CALL FOR PAPERS THE SECOND ANNUAL OBJECT-ORIENTED NUMERICS CONFERENCE OON-SKI '94 Sunriver, Oregon April 24-27, 1994 PROGRAM COMMITTEE: Richard Bartels, University of Waterloo Ronald Goossens, Stanford University Charlie Finan, Cray Research Ian Angus, Boeing Computer Services Allen Robinson, Sandia National Laboratories Wouter Joosen, K.U. Leuven, Belgium Allan Vermeulen, Rogue Wave Software Theme: OON-SKI provides a forum where computer scientists and scientific programmers can discuss how to use object-oriented programming techniques to more effectively write complex scientific codes. There will be four separate areas of focus: * Object-Oriented Environments: Design, Development, and Debugging Tools * Object-Oriented Analysis and Design Methodologies * Object-Oriented Software Components & Class Libraries * Applications PANEL DISCUSSION PROPOSALS Panel proposals should include the title, a brief description of the objectives and issues to be covered, the panel chair and probable panelists (including short vitae). Panels will be selected according to their substance and contributions to the conference program. Panel submissions are due by December 15, 1993. AUTHOR INFORMATION Authors should submit 8 copies of an extended abstract (via smail mail) by December 15, 1993. A cover page should be attached which includes the following: * Name, affiliation, and complete address for each author * A designated contact person including his/her telephone number, fax number, and e-mail address (if available). * A designated presenter should the paper be accepted. * Title of submission Mail abstract to: Allan Vermeulen Rogue Wave Software P.O. Box 2328 Corvallis, OR 97339 GENERAL CONFERENCE INFORMATION For general conference information and registration, contact: Margaret Chapman, Program Coordinator Rogue Wave Software P.O. Box 2328 Corvallis, OR 97339 email: amc@roguewave.com phone: (503) 754-3010, fax: (503) 757-6650 ------------------------------ From: Karen Hahn Date: Mon, 4 Oct 93 11:46:04 EDT Subject: IMACS Workshop on Turbulence Second Announcement IMACS WORKSHOP ON (THEORETICAL AND COMPUTATIONAL ASPECTS OF) TURBULENCE Rutgers University, New Brunswick, NJ, USA February 10-11, 1994 In order for CFD to get to new levels of usefulness to industry, there is a need for better turbulence models for high Re flows. An honest appraisal by industry on needs, and a similar word by academia and researchers at national labs on what can be done now is probably necessary. The workshop will deal with the numerical analysis and CFD algorithms that could bridge the gap, and will include those aspects of turbulence theory that have relevance to modeling used in simulation. Topics to include: Modeling, Non-equilibrium Turbulence, Spectral and High Order Methods, Adaptive Grids, Lagrangian Methods, Ocean Dynamics. It is currently planned to have proceedings published after the workshop, and a special issue of the IMACS journal APPLIED NUMERICAL MATHEMATICS will be devoted to this meeting. Organized by the IMACS Technical Committee on Computational Fluid Dynamics and Rutgers University Organizing Committee: Prof. R. Pelz (Rutgers University) Dr. R. Agarwal (McDonnell Douglas Aerospace) CURRENT LIST OF SPEAKERS: G. Berkooz (Cornell Univ.), M. Deville (EPFL - Switzerland), D. Fishelov (Hebrew Univ.), R. Krasny (U. of Michigan), A. Majda (Princeton Univ.), E. Weinan (IAS, Princeton), N. Zabusky (Rutgers Univ.) CALL FOR PAPERS/CALL FOR SESSIONS: Those wishing to contribute a paper, or to organize a session are invited to make themselves known to the Workshop Committee as soon as possible by writing to the address below. IMACS Turbulence Workshop c/o Karen Hahn Department of Computer Science Rutgers University New Brunswick, NJ 08903, USA e-mail: imacs@cs.rutgers.edu fax: 908-932-0537 ------------------------------ From: Tom Hagstrom Date: Wed, 29 Sep 93 14:01:48 MDT Subject: Positions at the U. of New Mexico THE UNIVERSITY OF NEW MEXICO Albuquerque, New Mexico Department of Mathematics and Statistics Subject to administrative approval, the Department anticipates that several tenure track positions will be available, beginning in the Fall Semester, 1994. We are particularly interested in candidates at the assistant professor level. Candidates must have a strong research record and a commitment to excellence in teaching. The Department of Mathematics and Statistics currently has 41 faculty members and an active and expanding graduate program. The Department has close research ties with Los Alamos and Sandia National Laboratories, and access to major computing facilities. Joint appointments with other departments are possible. Review of applications will begin January 3, 1994, and will continue until the positions are filled. All exceptionally strong candidates are urged to apply. Please have curriculum vitae, (including email address if possible) and three letters of reference sent to: Professor Benjamin Mann, Chair Hiring Committee Dept. of Mathematics & Statistics The University of New Mexico Albuquerque, NM 87131 THE UNIVERSITY OF NEW MEXICO IS AN EQUAL OPPORTUNITY AND AFFIRMATIVE ACTION EMPLOYER ------------------------------ From: Anton Wakolbinger Date: Fri, 1 Oct 1993 13:05:36 +0100 Subject: Position at Johann Wolfgang Goethe University, Frankfurt Professorship in Applied and Instrumental Mathematics Department of Mathematics Johann Wolfgang Goethe University Frankfurt am Main Federal Republic of Germany Applications are invited for a full professorship in instrumental and applied mathematics in the Mathematics Department of the Johann Wolfgang Goethe University. Here is the official announcement: "Am Fachbereich Mathematik der Johann Wolfgang Goethe-Universitaet Frankfurt am Main ist die C4-Professur fuer Angewandte und Instrumentelle Mathematik wiederzubesetzen. Der Forschungsschwerpunkt des/der zu Berufenden soll in der Numerik einschliesslich mathematischer Optimierung liegen. Erwartet wird die Bereitschaft zu Zusammenarbeit mit benachbarten Faechern und dem Hochschulrechenzentrum sowie die Beteiligung am Grundausbildungsprogramm des Fachbereichs Mathematik. Einstellungsvoraussetzungen sind die Habilitation oder gleichwertige wissenschaftliche Leistungen. Die Universitaet strebt eine Erhoehung des Anteils von Frauen in Forschung und Lehre an und bittet deshalb qualifizierte Wissenschaftlerinnen nachdruecklich um ihre Bewerbung. Bewerbungen mit den ueblichen Unterlagen werden bis 15.10.1993 erbeten an den Praesidenten der Johann Wolfgang Goethe-Universitaet Frankfurt am Main, D-60054 Frankfurt/M." ------------------------------ From: Fred Hickernell Date: Fri, 1 Oct 1993 09:48:12 -0700 (PDT) Subject: Positions at Hong Kong Baptist College HONG KONG BAPTIST COLLEGE Department of Mathematics Department of Computing Studies Baptist College provides whole-person education leading to bachelors, masters and doctoral degrees. Beginning in September 1994 the Mathematics and Computing Studies Departments will jointly offer an MSc degree in Scientific Computing. Due to this expansion we anticipate openings for 2-3 experts in scientific computing within the coming two years. At present the Mathematics Department has 12 teaching staff and the Computing Studies Department has 17. Staff engage in undergraduate and graduate teaching, supervision of project students, research and some administration. Since we are a growing institution, all staff have the opportunity to participate in developing our academic programs. As a publicly funded university-style institution Baptist College offers salaries and benefits (medical, housing and education) comparable to other Hong Kong tertiary institutions. Applicants should have a PhD and be committed to teaching and research in an interdisciplinary environment. If you wish to apply, please send your CV and three confidential letters of reference to the Personnel Department, Hong Kong Baptist College, 224 Waterloo Road, Kowloon, HONG KONG. Inquiries may also be made to the Fred J. Hickernell, Head of Mathematics (at Department of Statistics, Stanford University through January 31, 1994), Email: fred@math.hkbc.edu or hickerne@playfair.stanford.edu. ------------------------------ From: David Keyes Date: Fri, 1 Oct 93 17:21:21 EDT Subject: Position at Old Dominion University Old Dominion University Computer Science Department The ODU Computer Science Department solicits applications for an anticipated junior-level tenure track position starting as early as January 1, 1994. A PhD in Computer Science or a related field, a research record in high performance computing and communication, and excellence in teaching are required. The atmosphere of the department is strongly supportive of research, with an active faculty of 17 and over 100 graduate students. The department has over 100 SPARC workstations and special equipment needs can be accommodated. NASA's Langley Research Center, ICASE, and DOE's CEBAF facility are all within a thirty-minute drive from campus. Salary is competitive with the best. We would like to receive applications by September 25, 1993 but will continue to consider candidates until the position is filled. To apply, send curriculum vita, copies of recent articles or technical reports, and the names of three to five references to: Kurt Maly Kaufman Professor and Chair Department of Computer Science Old Dominion University Norfolk, VA 23529 FAX: 804-683-4900 E-mail: maly@cs.odu.edu Old Dominion University is an Affirmative Action/Equal Opportunity Employer. [Submitter's note: An antecedent to this announcement with less specificity in the research area ran in the September issue of the Communications of the ACM. The university has since then designated HPCC as one of five strategic areas that align with ODU's current strengths and natural geographical advantages; therefore, the search has been prolonged and the NA-net audience targeted. I would be glad to respond by e-mail to questions about the search from potential candidates. Actual candidates should contact Prof. Maly directly. -- D. Keyes] ------------------------------ From: Michael C. Ferris Date: Mon, 4 Oct 93 16:04:42 -0500 Subject: New Journal, Optimization MEthods and Software The first volume of the new journal OPTIMIZATION METHODS AND SOFTWARE, published by Gordon and Breach Science Publishers, is now available. A complimentary copy of the first issue may be obtained by sending an email request to info@gbsp.nl. AIMS AND SCOPE OPTIMIZATION METHODS AND SOFTWARE publishes refereed papers on the latest developments in the theory and imple Date: Fri, 1 Oct 93 13:04:30 EDT Subject: Contents, ACM Transaction on Mathematical Software Table of Contents ACM Transactions on Mathematical Software Volume 19 Number 3 (September 1993) Template Driven Interfaces for Numerical Subroutines Jon L. Bentley, Mary F. Fernandez, B. W. Kernighan and Norman L. Schryer pp. 265-287 Algorithm 719: Multiprecision Translation and Execution of FORTRAN Programs David H. Bailey pp. 288-319 Algorithm 720: An Algorithm for Adaptive Cubature Over a Collection of 3-Dimensional Simplices Jarle Berntsen, Ronald Cools and Terje O. Espelid pp. 320-332 On the Numerical Inversion of Laplace Transforms: Comparison of Three New Methods on Characteristic Problems from Applications Dean G. Duffy pp. 333-359 Mathematical Software for Sturn-Liouville Problems Steven Pruess and Charles T. Fulton pp. 360-376 The Computation of Eigenvalues and Solutions of Mathieu's Differential Equation for Noninteger and Integer Order Randall B. Shirts pp. 391-406 Algorithm 721: MTIEU1 and MTIEU2: Two Subroutines to Compute Eigenvalues and Solutions of Mathieu's Differential Equation for Noninteger and Integer Order Randall B. Shirts pp. 391-406 QR-Like Algorithms for the Nonsymmetric Eigenvalue Problem J. B. Haag and D. S. Watkins pp. 407-418 Implementation and Computational Results for the Hierarchical Algorithm for Making Sparse Matrices Sparser S. Frank Chang and S. Thomas McCormick pp. 419-441 ------------------------------ End of NA Digest ************************** -------