Subject: NA Digest, V. 94, # 20 NA Digest Sunday, May 15, 1994 Volume 94 : Issue 20 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Kreiss Matrix Theorem New Address for Bert Pohl Survey Paper on Numerical Evaluation of Special Functions Seeking Postdoctoral Position in CFD 1994 SIAM Forum Global Minimization of Nonconvex Energy Functions Dynamics of Discontinuous Systems Position at University of Strathcylde Position at Intel Santa Clara Contents, ACM Transactions 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: Gabriela KIRLINGER Date: Fri, 13 May 94 10:53:02 MEZ Subject: Kreiss Matrix Theorem We are interested in very many applications of the famous Kreiss Matrix Theorem. Thank you very much for help, Gabriela Kirlinger Winfried Auzinger Technical University Vienna ------------------------------ From: Bert Pohl Date: Mon, 9 May 94 08:45:52 +0200 Subject: New Address for Bert Pohl I have returned to ETH Zuerich, my new address: Dr. Bert Pohl Seminar fuer Angewandte Mathematik HG G 56 ETH Zuerich CH-8092 Zuerich Switzerland Tel: ++41 - 1 - 632 34 62 FAX: ++41 - 1 - 252 34 01 email: bpohl@sam.math.ethz.ch ------------------------------ From: Daniel W. Lozier Date: Tue, 10 May 94 14:46:49 EDT Subject: Survey Paper on Numerical Evaluation of Special Functions A forthcoming paper: D.W. Lozier and F.W.J. Olver, "Numerical Evaluation of Special Functions", will appear in: Mathematics of Computation 1943-1993: A Half-Century of Computational Mathematics, Walter Gautschi (ed.), Proceedings of Symposia in Applied Mathematics, American Mathematical Society, Providence, RI 02940. Abstract: Higher transcendental functions continue to play varied and important roles in investigations by engineers, mathematicians, scientists and statisticians. The purpose of this paper is to assist in locating useful approximations and software for the numerical generation of these functions, and to offer some suggestions for future developments in this field. Contents: 1. Introduction 2. Mathematical developments 3. Packages, libraries and systems (A general survey of software libraries and packages that include collections of special functions) 4. Functions of one variable 5. Functions of two or more variables (In sections 4 and 5 the functions are treated individually. References to software that is already available and to numerical approximations that are readily programmable are listed.) 6. Testing and library construction 7. Future trends References (Nearly 500 references are included.) A preprint is available upon request. Send requests to: D.W. Lozier Applied and Computational Mathematics Division National Institute of Standards and Technology Gaithersburg, MD 20899 or dlozier@nist.gov Please be sure to include a postal mailing address. ------------------------------ From: Brahim Khobalatte Date: Wed, 11 May 1994 17:44:42 +0200 Subject: Seeking Postdoctoral Position in CFD I am looking for a position as a Postdoctoral Research in computational fluid dynamics. If you are interested please let me know and I will send you a copy of my current resume and my references. My e-mail addresse is: khoba@menusin.inria.fr Present address: INRIA menusin BP 105, 78153 Le chesnay cedex, France. I look forward to your reply. Thank you for your kind attention in this matter. Sincerely, B. Khobalatte. ------------------------------ From: SIAM Date: Thu, 12 May 94 10:12:20 EST To: na.digest@na-net.ornl.gov Subject: 1994 SIAM Forum Third SIAM Forum on Industrial and Applied Mathematics Saturday, July 23, 1994, The Holiday Inn By The Bay, San Diego, CA MATHEMATICS IN INDUSTRY: THE JOB MARKET OF THE FUTURE 8:15 AM Welcoming Remarks 8:30 - 10:00 Mathematicians In Small Cap Firms 10:30 - 11:30 Non-Mathematicians Who Do Mathematics In Industry 11:30 - 12:00 Mathematics in Industry Preliminary Results Presentation 1:00 - 2:00 PM Hiring In Business, Industry, and Government: The Manager's Perspective 2:15 - 3:30 Report From The Front: Experiences of Recent Industrial Hires 4:00 - 5:00 Reaching From Academia To Industry 5:00 - 6:00 Networking Session REGISTRATION FEE: $50 (Fee Includes forum materials, reception, lunch and dinner.) PREREGISTRATION DEADLINE: Monday, June 11, 1994 For a complete copy of the preliminary program & registration/hotel information, please contact SIAM Conference Department. E-Mail: degiulio@siam.org Fax: 215-386-7999 Telephone: 215-382-9800 ------------------------------ From: Panos Pardalos Date: Sun, 8 May 94 17:37:39 EDT Subject: Global Minimization of Nonconvex Energy Functions DIMACS Workshop on Global Minimization of Nonconvex Energy Functions: Molecular Conformation and Protein Folding Organizers: P.M. Pardalos, D. Shalloway and G. Xue This workshop will be held on March 20-21, 1995, at DIMACS (Center for Discrete Mathematics and Theoretical Computer Science at Rutgers University). This workshop is part of the DIMACS special year 1994-1995: Mathematical Support for Molecular Biology. One of the most significant and challenging problems in molecular biophysics and biochemistry is that of computing the native 3-dimensional conformation (folded state) of a globular protein given its amino acid sequence, possibly in the presence of additional agents (e.g., drugs). The solution will probably require the use of experimental or knowledge-based methods to provide initial guesses for subsequent numerical refinement. The numerical methods require: (a) determination of suitable energy functions that can reliably model protein behaviour and (b) optimization methods that can find global minima of energy functions given the many degrees of freedom available to protein structures. At present significant progress in identifying appropriate energy functions has been made; the primary impediment is the lack of adequate global minimization methods for these large-dimensionality problems. This workshop will focus on this and related problems through an interdisciplinary effort that is represented from computational groups in global optimization, computer science and biochemistry. The workshop will feature a keynote address by distinguished speaker, Dr. H.A. Hauptman, 1985 Nobel Prize Laureate in Chemistry. Additional information on travel and local accommodations will be provided at a later date. More information on the workshop can be obtained from the organizers: P.M. Pardalos (University of Florida, pardalos@ufl.edu) D. Shalloway (Cornell University, DISJ@CORNELLA.cit.cornell.edu) G. Xue (University of Vermont, xue@uvm-gen.emba.uvm.edu) or from Pat Toci (toci@dimacs.rutgers.edu) at DIMACS. The workshop is sponsored by DIMACS with funds from National Science Foundation and The New Jersey Commission on Science and Technology. ------------------------------ From: Stuart Doole Date: Mon, 9 May 1994 10:42:23 +0000 (BST) Subject: Dynamics of Discontinuous Systems First Announcement THE MATHEMATICS OF IMPACT: The dynamics of discontinuous systems Monday 26th September 1994 Departments of Mathematics and Engineering Mathematics Bristol University U.K. This meeting will focus on recent mathematical developments in the dynamics of systems with discontinuities. Such systems arise in many mechanical situations, in studies of the effects of earthquake on buildings and structures, in the analysis of offshore structures, and many other real engineering scenarios. The current models have highly complex solution structure and possess new kinds of bifurcations which require careful numerical computation. One important issue is whether such behaviour persists when more realistic/empirical impact laws are used. A panel discussion will be included, to examine the relationship between impact dynamics and wear. There will be plenty of time for informal interactions. A small registration fee will be charged to cover catering costs. For further details contact Professor S.J. Hogan (0272) 303246; s.j.hogan@bristol.ac.uk Dr. C.J. Budd (0271) 303317; chris.budd@britol.ac.uk This meeting is made possible by a grant from the London Mathematical Society ------------------------------ From: D. Sloan Date: Mon, 9 May 94 12:25:03 BST Subject: Position at University of Strathcylde UNIVERSITY OF STRATHCLYDE DEPARTMENT OF MATHEMATICS SENIOR LECTURESHIP/LECTURESHIP IN MATHEMATICS Applications are invited for a Senior Lectureship/Lectureship in Industrial Mathematics in the Department of Mathematics. For the Senior Lectureship strong preference will be given to candidates with either industrial experience or a substantial research record in Industrial Mathematics, with a demonstrable ability to attract funding. It is expected that the new appointee will be energetic and self-motivating. Should no such suitable candidate emerge then an appointment will be made to a lectureship. In this case the preference is either for a candidate with an industrial background or some experience in industrial problem solving. Salary: up to #29,788 per annum. The Department of Mathematics has recently made six academic appointments in industrial mathematics, numerical analysis, continuum mechanics and nonlinear analysis, and one academic-related appointment of Computer Officer. For application form and further particulars (Ref 48/94) contact the Personnel Office, University of Strathclyde, Glasgow, G1 1XQ. TEL: 041 552 4400 EXT. 4476 Applications Closing Date: 13 June 1994 ------------------------------ From: Paco Leon Date: Tue, 10 May 94 18:52:21 PDT Subject: Position at Intel Santa Clara Job Opening: Intel Corporation (Santa Clara) Numerical Analyst (Technology CAD department) Qualifications: Candidate should have a PhD in Computer Science or related disciplines, with a thorough knowledge of numerical analysis. A PhD in EE, Physics, or related discipline is acceptable if the candidate's numerical analysis background is exceptionally strong. Extensive experience in numerical solution of partial differential equations is a requirement, as is experience with large numerical codes. Familiarity with modern programming techniques and languages (such as C, C++, and object oriented programming) is a plus. Good communication skills are also required. Duties: As an engineer in the Technology CAD group, he/she will help solve numerical problems in the group's process and device simulation tools. The range of problems includes solution of non-linear systems, adaptive grid generation, and development of parallel algorithms. This person will develop codes, as well as help others solve their problems, so close interaction with other developers in the TCAD department is necessary. In addition to the strictly numerical duties, he/she will be responsible for creating new applications to be used in development of Intel's next generation technologies. Contact: Paco Leon Program Manager, Process Modeling Group (408) 765-9065 pleon@sc9.intel.com ------------------------------ From: Ronald Boisvert Date: Wed, 11 May 94 16:04:00 EDT Subject: Contents, ACM Transactions on Mathematical Software Table of Contents ACM Transactions on Mathematical Software Volume 20 Number 1 (March 1994) A Noniterative Thinning Algorithm Christian Neusius and Jan Olszewski pp. 5-20 Algorithm 726. ORTHPOL : A Package of Routines for Generating Orthogonal Polynomials and Gauss-type Quadrature Rules Walter Gautschi pp. 21-62 New NAG Library Software for First-Order Partial Differential Equations S.V. Pennington and M. Berzins pp. 63-99 Algorithm 727. Quantile Estimation Using Overlapping Batch Statistics Sherif Hashem and Bruce Schmeiser pp. 100-102 Generating Quadratic Bilevel Programming Test Problems Paul H. Calamai and Luis N. Vicente pp. 103-119 Algorithm 728. FORTRAN Subroutines for Generating Quadratic Bilevel Programming Test Problems Paul H. Calamai and Luis N. Vicente pp. 120-123 The Evaluation of Trigonometric Integrals Avoiding Spurious Discontinuities D.J. Jeffrey and A.D. Rich pp. 124-136 Sparse QR Factorization in MATLAB Pontus Matstoms pp. 136-159 Corrigendum: Algorithm 729. FORTRAN Subroutines for General Toeplitz Systems Per Christian Hansen and Tony F. Chan p. 160 Corrigendum: Algorithm 730. An Implementation of a Divide and Conquer Algorithm for the Unitary Eigenproblem G.S. Amar, L. Reichel and D.C. Sorensen p. 161 ------------------------------ End of NA Digest ************************** -------