Subject: NA Digest, V. 95, # 14 NA Digest Sunday, April 2, 1995 Volume 95 : Issue 14 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: NA Digest Calendar Global Optimization Software Looking for Spherical Bessel Function Evaluator Generalized Eigenvalues, Maximum Real Part SIAM Meeting Dates Director Position at GSF, Bavaria Postdoc Position at University of New South Wales Position at Caltech Contents, Journal of Complexity Contents, Linear Algebra and its Applications Contents, Intl. J. Computational Fluid Dynamics 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: NA Digest Date: Sun Apr 2 22:19:37 EDT 1995 Subject: NA Digest Calendar NA Digest Calendar Date Topic Place NA Digest # Apr. 2- 7 Multigrid Methods Copper Mountain, CO 07 Apr. 3- 5 Applied Mathematical Programming London, England 41 Apr. 3- 6 Numerical Methods for Fluid Dynamics Oxford, England 08 Apr. 4- 6 Real Numbers and Computers Saint-Etienne, France 10 Apr. 7 Carl Discrete Math Day Ottawa, Ontario 08 Apr. 8 Carl Analysis Day Ottawa, Ontario 08 Apr. 8 East Coast Computer Algebra Day Newark, DE 10 Apr. 10-12 Parameter Identification Karlsruhe, Germany 46 Apr. 17-18 Symposium in Memory of John A. Gregory Nicosia, Cyprus 06 Apr. 20-22 Computational and Applied Mathematics Austin, TX 09 Apr. 23-26 IBM High Performance Computing Tucson, AZ 12 Apr. 24-26 Boundary Element Technology Honolulu, Hawaii 06 Apr. 24-28 3rd INRIA-SIAM Wave Propagation Conf. Juan-les-Pins, France 19 Apr. 24-28 Multigrid Course Bad Honnef, Germany 03 Apr. 26-30 Numerical Analysis & Applied Math. Constanza,Romania 26 Apr. 27-29 Control and Its Applications St. Louis, MO 36 Apr. 28-30 Global Optimization Princeton, NJ 47 Apr. 29 Midwest NA Day Iowa City, Iowa 05 May 9-12 Agriculture & Bio-Industries Brussels, Belgium 42 May 14-17 Homogenization Theories Mierki, Poland 05 May 15-19 Graphics Interface '95 Quebec City, Canada 36 May 16-20 Domain Decomposition Methods Beijing, China 45 May 16-20 Applied Computer Algebra Albuquerque, NM 46 May 21-24 Object-Oriented Numerics Conference Jackson Lake, WY 32 May 21-26 Centenial Hurwitz on Stability Theory MonteVerita,Switzerland49 May 22-26 Flow through Porous Media Saint-Etienne, France 48 May 29... Haifa Matrix Theory Conference Haifa, Israel 05 May 29-31 Diffraction St.Petersburg, Russia 04 May 31... Method of Lines Workshop Lexington, KY 12 June 1- 3 ABS Methods Beijing, China 04 June 5- 9 Spectral And High Order Methods Houston, TX 44 June 5- 9 Control and Information Shatin NT, Hong Kong 33 June 6-10 Inertial Manifolds Xi'an, China 21 June 12-16 Parallel Numerical Linear Algebra San Francisco, CA 11 June 13-21 Nonlinear Optimization Erice, Sicily, Italy 11 June 17-20 IMACS Symposium on Iterative Methods Blagoevgrad, Bulgaria 46 June 17-20 Iterative Methods in Linear Algebra Blagoevgrad, Bulgaria 39 June 19-22 Intertial Manifolds Xi'an, China 04 June 19-20 Symposium in Honor of Herb Keller Pasadena, CA 04 June 20-24 Honoring G. I. Marchuk Novosibirsk, Russia 28 June 21-24 Interface Computing and Statistics Pittsburgh, PA 50 June 22-23 Nonlinear Optimization Capri 09 June 22-29 Finite Element Approximations St.-Petersburg, Russia 46 June 26-27 Stockholm Optimization Days Stockholm, Sweden 06 June 26-30 Systems Analysis and Simulation Berlin, Germany 50 June 26... Mechanics of Continuous Media St.Peterbourg, Russia 01 June 27-30 Numerical Analysis Dundee, Scotland 37 June 28-30 DSS/2 User Group Mons, Belgium 09 July 3- 7 Computational Techniques Melbourne, Australia 10 July 3- 7 ICIAM, Int'l Cong. Indust. Appl. Math. Hamburg, Germany 23 July 3- 7 Mathematics of Neural Networks Oxford, UK 48 July 9-12 Error Bounds for Numerical Algorithms Oldenburg, Germany 05 July 9-13 Conjugate Gradient Methods Seattle, WA 10 July 9-14 Ill-posed Inverse Problems San Diego, CA 48 July 9-14 Math Methods in Geophysical Imaging San Diego, CA 51 July 10-12 Linear Algebra and Its Applications Manchester, UK 11 July 10-12 South African N.A. Symposium Scottburgh, So. Africa 52 July 10-14 Computational Mathematics Shushenskoe, Siberia 11 July 15-16 Matrix Methods for Statistics Montreal, Quebec 09 July 10-21 Nonlinear Waves Sapporo, Japan 43 July 16... Mathematics of Numerical Analysis Park City, UT 11 July 17-18 Identification and Optimization Prague, Czech. 12 July 17-19 Boundary Element Techniques Madison, WI 04 July 17-21 Distributed Parameter Systems Warsaw, Poland 25 July 17-21 Modelling and Optimization Warsaw, Poland 32 July 31... Rocky Mountain Numerical Analysis Salt Lake City, UT 32 July 31... Summer School Jyvaskyla, Finland 11 Aug. 2- 4 Computer Methods in Water Resources Beirut, Lebanon 50 Aug. 7-16 Industrial Mathematics Modeling Raleigh, NC 12 Aug. 16-19 International Linear Algebra Society Atlanta, GA 07 Aug. 19-22 Operations Research Beijing, China 05 Aug. 21-23 Workshop on Conservation Laws Trondheim, Norway 44 Aug. 21-24 Applied Parallel Computing Lyngby, Denmark 12 Aug. 23-27 Biology, Ecology and Medicine Sofia, Bulgaria 09 Aug. 24-29 Differential Equations Rousse, Bulgaria 06 Aug. 27-31 Circuit Theory and Design Istanbul, Turkey 42 Aug. 28-30 European Simulation Meeting Gyor, Hungary 07 Aug. 28... Computational and Applied Mathematics Curitiba, Brazil 03 Aug. 29... Parallel Statistics and Economics Trier-Mainz, Germany 41 Sep. 5-14 Computing Techniques in Physics Skalsky dvur, Czech. 08 Sep. 12-15 Parallel Computing in Russia St.-Petersburg, Russia 45 Sep. 17-21 Acoustics of Submerged Structures Boston, MA 22 Sep. 26-29 Computer Arithmetic Wuppertal, Germany 04 Sep. 27-30 Mathematical Tools in Metrology Oxford, UK 51 Oct. 9-15 Cubature Formulae Krasnoyarsk, Russia 08 Oct. 13-14 Differential Equations Raleigh, NC 08 Oct. 15-19 Parallel Algorithms Wuhan, China 08 Oct. 16-18 1995 MATLAB Conference Cambridge, MA 12 Oct. 23-26 SIAM Annual Meeting Charlotte, NC 05 Nov. 1- 4 Complementarity Problems Baltimore, MD 05 Nov. 6- 9 Geometric Design Nashville, TN 04 Nov. 15-17 Simulation of Devices and Technologies Kruger, South Africa 01 Nov. 19-22 Pure and Applied Mathematics Isa Town, Bahrain 38 Dec. 10-14 Global Optimization Szeged, Hungary 10 Dec. 14-16 Dynamical Systems/Numerical Analysis Atlanta, GA 49 Dec. 14-20 Winter School on Iterative Methods Hong Kong 09 1996 Jan. 28-30 Discrete Algorithms Atlanta, GA 10 Feb. 12-14 Network Optimization Problems Gainesville, FL 47 Apr. 1- 4 State of the Art in Numerical Analysis York, England 06 June 13-15 Algebraic Multilevel Iteration Methods Nijmegen, Netherlands 11 June 17-21 Householder XIII Symposium Pontresina,Switzerland 44 July 8-12 Prague Mathematical Conference Prague, Czech Rep. 03 July 15-19 Computational Mechanics Miskolc, Hungary 10 July 27-30 Conference Honoring Mike Powell Cambridge, England 48 Aug. 25-31 Congress Theor. & Appl. Mechanics Kyoto, Japan 46 ------------------------------ From: Marcel Mongeau Date: Wed, 29 Mar 1995 13:51:32 +0200 (MET) Subject: Global Optimization Software We are interested in obtaining any software (either of public domain or commercial) for global optimization. Any related documentation would be appreciated. Jean-Baptiste Hiriart-Urruty Marcel Mongeau Laboratoire Approximation & Optimisation Universite Paul Sabatier (Toulouse III) 118, route de Narbonne 31062 Toulouse cedex France email: mongeau@cict.fr ------------------------------ From: David E. Cawlfield Date: Wed, 29 Mar 1995 22:06:59 -0800 Subject: Looking for Spherical Bessel Function Evaluator We are looking for an evaluator for the Spherical Bessel functions of the first kind (aka half-order Bessel functions). This could be either be in the form of computer code(s) or pointers to a continued fraction approximation to the SBF. We know that we can obtain the SBFs from a standard "J sub(N+ALPHA) (X)" evaluator, and we have previously used Cody's RJBESL function from netlib, with good results. We also have looked at the series approximation in Abramowitz & Stegun. The problem that we are currently faced with is having to do "a bit of algebra" when evaluating the kernel of an integral equation in the vicinity of a singularity. An alternative approximation series might help us do the math. D. E. Cawlfield cawlfldm@nye.nscee.edu REECo na.cawlfield@na-net.ornl.gov Las Vegas, NV ------------------------------ From: Mark Hanisch Date: Fri, 31 Mar 95 16:03:46 EST Subject: Generalized Eigenvalues, Maximum Real Part Dear Colleagues, We are looking for algorithms for the generalized eigenvalue problem Ax = cBx which find the maximum of Re(c) (the real part), where c ranges through the set of generalized eigenvalues. In our application the matrices A and B are large, complex, and square, but not necessarily Hermitian. It is not feasible for us to compute all of the generalized eigenvalues. Your suggestions for or directions to such algorithms would be greatly appreciated. (We are aware of a method employing matrix exponentials and a power iteration.) Please direct responses to vivek@tam.cornell.edu . Thanks for your help, Mark Hanisch Vivek Saxena Math & CS BEAM Technologies Hobart & William Smith Colleges 110 N Cayuga St. Geneva, NY 14456 Ithaca, NY 14850 ------------------------------ From: Trini Flores Date: Fri, 31 Mar 95 12:26:12 EST Subject: SIAM Meeting Dates DATES TO REMEMBER... APRIL 14, 1995 - Deadline for submission of minisymposium proposals to 1995 SIAM Annual Meeting, Charlotte, NC, October 23-26. APRIL 14, 1995 - Deadline for advance registration to attend 1995 SIAM Conference on Control and Its Applications, St. Louis, MO April 27-29. MAY 8, 1995 - Deadline for submission of abstracts to 1995 SIAM Conference on Geometric Design, Nashville, TN, November 6-9. MAY 15, 1995 - Deadline for submission of abstracts to 1995 SIAM Annual Meeting, Charlotte, NC October 23-26. MAY 19, 1995 - Deadline for submission of abstracts to 1995 Symposium on Inverse Problems: Geophysical Applications, Yosemite, CA December 16-19. To receive your copy of the calls for papers, either the electronic or hard copy versions; to obtain the macros for submitting abstracts electronically; to obtain minisymposium proposal forms; to register or obtain more information about SIAM conferences, contact SIAM now. Telephone: 215-382-9800; Fax: 215-386-7999; E-mail: meetings@siam.org Gopher: gopher.siam.org World Wide Web: http://www.siam.org ------------------------------ From: W. van Eimeren Date: Sat, 25 Mar 95 16:47:38 +6816 Subject: Director Position at GSF, Bavaria The GSF is a non-profit research centre funded by the Federal Government of Germany and the State of Bavaria with approximately 1700 employees. Research is focused on activities related to the protection of man and his environment from harmful effects resulting from radiation or chemicals, and using scientific and technical knowledge to improve the provision of health care. We hope to fill the position of the Direktor/in des GSF-Instituts fuer Biometrie as soon as possible. The nomination will be jointly carried out in co-operation with the faculty of mathematics of the Technical University of Munich. The director of the newly founded Institut fuer Biometrie will also hold the chair (C4) of Angewandte Mathematik in Oekologie und Medizin at the Technical University of Munich. Please take notice of the announcement in the Deutsche Universitaetszeitung. The applicant is expected to introduce new mathematical results and methods into the disciplines of Medicine, Biology and Ecology. The institute, with 14 permanent staff members, has the task of developing mathematical methods modelling biological, ecological and medical processes, structures and mechanisms on a co-operative basis. This includes for example the three- dimensional modelling of the different environmental compartments as well as developing simulation models for various ecological, medical and biological problems. Applicants should have excellent scientific qualifications and proven management capabilities. He/she should be interested in internal and external co-operation, both on a national and an international level. Salary level corresponds to that of a full university professorship (C4). Applications with curriculum vitae, list of publications, references and certificates should be sent no later than April 30, 1995, to the scientific director of the GSF: GSF Prof. Dr. J. Klein Postfach 11 29, 85758 Oberschleissheim and also to the dekan of the mathematical faculty Technical University of Munich: Dekan der Fakultaet fuer Mathematik der TU Muenchen Arcisstrasse 21 D - 80333 Muenchen GSF - Forschungszentrum fuer Umwelt und Gesundheit GmbH ------------------------------ From: Ian Sloan Date: Fri, 31 Mar 1995 14:22:40 +1000 Subject: Postdoc Position at University of New South Wales University of New South Wales Sydney, Australia POST-DOC POSITION IN FEM PROJECT This is a preliminary draft of a probable forthcoming advertisement for a post-doc position suitable for a young researcher with good numerical analysis and math training. We hope to fill the position quickly. The position could be suitable, for instance, for an Australian resident who now wants to return to Australia, but all applicants will be considered. Please contact me if you might be interested. Ian Sloan E-mail: I.Sloan@unsw.edu.au DRAFT ADVERTISEMENT: UNIVERSITY OF NEW SOUTH WALES SCHOOLS OF MATHEMATICS AND MECH. ENGINEERING RESEARCH ASSSOCIATE Applications are invited for a Research Associate position on the project "Computable error bounds for the Finite Element Method", funded by the Australian Research Council, and held by Professors I.H.Sloan (Math.) and D.W.Kelly (Mech. Eng.). The project extends previous techniques for obtaining useful and reliable pointwise error in the finite-element method. The extensions in the present project are particularly focussed on non-linear problems. The successful applicant will have a PhD in relevant discipline, strong research experience, involving scientific computing, and a good knowledge of mathematical analysis. A knowledge of the following areas would be desirable: PDE, FEM, BEM, numerical analysis, nonlinear analysis. He or she will be located in the Mathematics School, and have access to a range of modern computing equipment, Appointment on a fractional or full-time basis will be considered. Apppointment will be initially for one year, with the possibility of renewal for up to two further years. The salary will be in the range $A37,345 to $A40,087, depending on age and experience. For further information contact Professor Ian Sloan on I.Sloan@unsw.edu.au ------------------------------ From: Paul Messina Date: Sat, 1 Apr 1995 09:08:02 -0800 Subject: Position at Caltech Position Available: Manager of Computing Systems for Caltech's Center for Advanced Computing Research (CACR) The CACR seeks to fill the position of Manager of CACR Computing Facilities. This new position encompasses the following responsibilities: overseeing all aspects of operation of a large, cutting-edge computing and networking facility that supports large-scale computational science and engineering research projects. supervising a staff of approximately 12 that provides system support, user services, hardware and software maintenance, and general facility support interfacing with vendors and maintenance providers, including acting as technical point of contact for collaborative evaluation and development projects, such as the Scalable I/O Initiative taking the leadership role in formulating operating policies for the CACR computing environments This person must have substantial experience in managing advanced technical computing facilities and be capable of providing leadership in identifying and implementing solutions to systems problems or shortcomings. This position reports directly to Paul Messina, the Director of CACR. Educational Background Masters or Ph.D. in a technical field (computer science, a physical science, or mathematics) or equivalent experience The CACR The CACR is a multidisciplinary computational science research organization. The CACR operates large-scale computing and networking facilities that support the research projects. Most of the activities of the Center are supported through grants from federal agencies. There is also substantial support from Caltech and industry. The CACR also provides computing resources for the Concurrent Supercomputing Consortium and thus supports users located nationwide. The CACR computing environment The CACR computing environment is heavily oriented towards large parallel computer systems. Current equipment includes 512 processor Intel Paragon 512 processor Intel Delta several smaller Intel and nCUBE parallel computers a Convex C210 that runs Unitree for archival storage A variety of local and wide-area networks (ethernet, HIPPI, ISDN, and ATM), including the CASA gigabit network testbed Approximately 50 scientific workstations supported by several servers a graphics and video production facility Caltech is an Affirmative Action/Equal Opportunity Employer. Women, Minorities, Veterans, and Disabled Persons are encouraged to apply. Please send your resume to: Mary Maloney CACR 158-79 Caltech 1201 E. California Blvd. Pasadena, CA 91125 Or send email to: mmm@ccsf.caltech.edu ------------------------------ From: Joseph Traub Date: Sun, 26 Mar 95 6:26:47 EST Subject: Contents, Journal of Complexity TABLE OF CONTENTS Journal of Complexity -- March, 1995 CONTRIBUTED PAPERS: Explicit Cost Bounds of Algorithms for Multivariate Tensor Product Problems G. W. Wasilkowski and H. Wozniakowski The Real Number Model in Numerical Analysis E. Novak Average Error Bounds of Best Approximation of Continuous Functions on the Wiener Space Y. Sun and C. Wang Termination Criteria for Linear Problems S. Paskov INVITED JOINT RESEARCH CONFERENCE ARTICLES On the Complexity of Approximating Extremal Determinants in Matrices L. Khachiyan The Complexity of Multivariate Elliptic Problems with Analytic Data A. Werschulz Complexity of Finding Irreducible Components of a Semialgebraic Set A. Galligo and N. Vorobjov ------------------------------ From: Richard Brualdi Date: Sun, 26 Mar 1995 16:50:23 -0600 (CST) Subject: Contents, Linear Algebra and its Applications LINEAR ALGEBRA AND ITS APPLICATIONS Contents Volume 218 Kazuo Murota (Kyoto, Japan) An Identity for Matching and Skew-Symmetric Determinant 1 Jose A. Hermida-Alonso, M. Pilar Perez, and Tomas Sanchez-Giralda (Valladolid, Spain) Feedback Invariants for Linear Dynamical Systems Over a Principal Ideal Domain 29 C. Turke and M. Weber (Dresden, Germany) On a Maximum Principle for Inverse Monotone Matrices 47 Georg Heinig (Safat, Kuwait) and Karla Rost (Chemnitz, Germany) Recursive Solution of Cauchy-Vandermonde Systems of Equations 59 Roy Meshulam (Haifa, Israel) Spaces of Hankel Matrices Over Finite Fields 73 Artibano Micali (Montpellier, France) and Moussa Ouattara (Ouagadougou, Burkina Faso) Structures des Algebres de Bernstein 77 Jean-Claude Evard (Charleston, Illinois) Invariance and Commutativity Properties of Some Classes of Solutions of the Matrix Differential Equation X(t)X*b7(t)=X*b7(t)X(t) 89 David C. Fisher (Denver, Colorado) Characteristic Polynomials of Straffin Digraphs 103 G. P. A. Thijsse (Rotterdam, the Netherlands) Symmetry Properties of and Reduction Principles for Divisibility Relations Between the Invariant Factors of Products of Holomorphic Matrix Functions 113 David Chillag (Haifa, Israel) Regular Representations of Semisimple Algebras, Separable Field Extensions, Group Characters, Generalized Circulants, and Generalized Cyclic Codes 147 B. Monson (Fredericton, New Brunswick, Canada) and Asia Ivic Weiss (North York, Ontario, Canada) Polytopes Related to the Picard Group 185 Raymond H. Chan and C. K. Wong (Hong Kong) Best-Conditioned Circulant Preconditioners 205 Jerrold W. Grossman, Devadatta, M. Kulkarni, and Irwin E. Schochetman (Rochester, Michigan) On the Minors of an Incidence Matrix and Its Smith Normal Form 213 Thomas Garrity and Robert Mizner (Williamstown, Massachusetts) Invariants of Vector-Valued Bilinear and Sesquilinear Forms 225 Carl C. Cowen (West Lafayette, Indiana), Kelly E. Debro (Atlanta, Georgia), and Peter D. Sepanski (West Lafayatte, Indiana) Geometry and the Norms of Hadamard Multipliers 239 Paul Binding (Calgary, Alberta, Canada) and Qiang Ye (Winnipeg, Manitoba, Canada) Variational Principles for Indefinite Eigenvalue Problems 251 Gregory S. Ammar (DeKalb, Illinois) and Chunyang He (Chemnitz, Germany) On an Inverse Eigenvalue Problem for Unitary Hessenberg Matrices 263 Ivan Slapnicar (Split, Croatia) and Kresimir Veselic (Hagen, Germany) Perturbations of the Eigenprojections of a Factorized Hermitian Matrix 273 Author Index 281 ------------------------------ From: Grant Guevremont Date: Fri, 31 Mar 1995 19:05:30 -0500 Subject: Contents, Intl. J. Computational Fluid Dynamics Contents INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS Vol. 3, No. 3-4, 1994 Near-Wake Flow Calculations by an Implicit 2D Navier-Stokes Roe Riemann Solver. F. Angrand and F. C. Lafon A Spectral Method for Unsteady Flow and Heat Transfer Past a Spherical Droplet: Primitive Variable Formulation S. Paik, H. D. Nguyen and J. N. Chung Laminar Convection in a Uniformly Heated Horizontal Pipe Using Symbolic Computation I. Guiasu, H. Raszillier and K. Nandakumar Integration of 2-D Fluid/Structure Coupled System for Calculations of Turbomachinery Aerodynamic/Aeroelastic Instabilities L. He A Finite Volume Solver for the Shallow Water Equations in Varying Bed Environments H. Zhang and M. Reggio A Numerical Study of Optimal Drag Reduction for Turbulent Transonic Projectiles Using a Passive Control J.-K. Fu and S.-M. Liang Linear Instability of the Annular Hagen-Poiseuille Flow with Small Inner Radius by a Chebyshev Pseudospectral Method D. Chen and G. H. Jirka Numerical Simulation of Unsteady Natural Convection In a Square Cavity by the Third-Order Upwind Finite Element Method N. Kondo SHORT COMMUNICATION Steady-State Calculations Using Compact Upwind Schemes for the Inviscid and Viscous Burgers Equation K. S. Ravichandran The Effect of Choice of Inlet Boundary Conditions for the k-e Turbulence Model C. E. I. Byrne and A. E. Holdo Grant Guevremont CERCA Tel. (514) 369-5273 email : grantg@cerca.umontreal.ca ------------------------------ End of NA Digest ************************** -------