Subject: NA Digest, V. 93, # 6 NA Digest Sunday, February 7, 1993 Volume 93 : Issue 6 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: 1992 Chauvenet Prize for David Bailey Change of Address for Bill Clinton Query about Convex Bodies 4th Stockholm Optimization Days Conference: Fifty Years of the Courant Element Assistant Professorships ETH Zuerich Postdoc Position at Maryland/NIH Positions in Mathematical Sciences at Tulsa U. Lecturership at Deakin University, Australia Job Opening at Cornell Theory Center Graduate Traineeships at Stanford Position at Univ. Calif. Santa Barbara Post Doc Position at University of Vermont Grand Challenge Applications Groups New Journal: Annals of Numerical Mathematics Contents: Linear Algebra and its Applications Contents: Computational and Applied Mathematics Contents: SIAM Numerical Analysis Contents: SIAM Optimization 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: Horst D. Simon Date: Fri, 5 Feb 93 10:22:11 -0800 Subject: 1992 Chauvenet Prize for David Bailey I am very pleased to announce that the 1992 Chauvenet Prize has been awarded to my colleague David H. Bailey of NASA Ames Research Center. The prize is awarded annually by the Mathematical Association of America for a noteworthy or expository survey paper. David received the prize for the paper "Ramanujan, modular equations, and approximations to pi or how to compute one million digits of pi". This is a joint paper with J. M. Borwein and P. B. Borwein, which appeared in the American Mathematical Monthly, Volume 96, 1989, pages 201 - 219. The prize committee has described the accomplishment of the paper as follows: "The article draws the reader into a delightful look at several areas of mathematics. There is even an intersting comment on how computation of the digits of pi is used to test the 'global integrity' of new supercomputers. Anyone interested in the remarkable insights presented by Ramanujan, details of numerical computation, use of deep results in modern mathematics to tackle ancient problems, or simply the developments related to an easily stated but largely open ended problem, will benefit from reading this article. The sheer joy of mathematics shines clearly throughout the paper." Readers of NA-digest may be interested to know that previous recipients of the Chauvenet Prize include Steve Smale (1988), Jim Wilkinson (1987), Gilbert Strang (1977), and Cornelius Lanczos (1960), as well as a long list of distinguished researchers in other areas of mathematics. Congratulations David! Horst Simon NASA Ames Research Center ------------------------------ From: Horst D. Simon Date: Mon, 1 Feb 93 15:15:28 -0800 Subject: Change of Address for Bill Clinton Hi Folks, The following is NOT a joke. It is a real service being provided by President Clinton. If you feel you have something to say, send them a letter. I heard they will reply to most messages. ============= From: The White House <75300.3115@compuserve.com> As you know, this is the first time in history that the White House has been connected to the public through electronic mail. We welcome your comments and suggestions for ways to improve your Public Access E-mail program. Jock Gill Electronic Publishing Public Access E-mail The White House Washington, D.C. 75300.3115@Compuserve.com CLINTON PZ on America Online ------------------------------ From: E. B. Saff Date: Thu, 4 Feb 93 15:37:41 EST Subject: Query about Convex Bodies Given N points in 3 space , does anyone know of an algorithm for graphing the convex hull of these points? Also is there an algorithm for computing the volume of this convex body? Please contact Ed Saff at esaff@math.usf.edu ------------------------------ From: A. Forsgren Date: Mon, 1 Feb 93 19:41:17 +0100 Subject: 4th Stockholm Optimization Days CALL FOR PAPERS 4TH STOCKHOLM OPTIMIZATION DAYS We invite theoretical, computational and applied papers for the 4th Stockholm Optimization Days. The conference will take place at KTH (Royal Institute of Technology) in Stockholm, Sweden, August 16-17, 1993. We plan to have sessions on dual optimization methods, inventory control, structural optimization, power planning and large scale nonlinear programming among other areas. Invited speakers include: M Bendsoe, DTH, Copenhagen R Bixby, Rice Univ., Houston A Conn, IBM, Yorktown Heights J Desrosiers, HEC, Montreal P Gill, UCSD, San Diego J-L Goffin, McGill, Montreal N Gould, CERFACS, Toulouse S Graves, MIT, Boston B Hager, Univ. Florida, Gainesville D Hearn, Univ. Florida, Gainesville N Karmarkar, AT&T, Murray Hill C Kiwiel, Systems Research Institute, Warsaw C Lemarechal, INRIA, Paris W Murray, Stanford Univ. A Nemirovski, CMI, Moscow J Nocedal, Northwestern Univ., Evanston P Pardalos, Univ. Florida, Gainesville C Sherbrooke, Logistics Management Institute, Bethesda Ph Toint, FUNDP, Namur Y Zheng, Univ. Pennsylvania, Philadelphia Abstracts should be sent by June 1 (preferably by e-mail) to optdays@math.kth.se or by mail to Optimization Days Division of Optimization and Systems Theory KTH S-100 44 Stockholm Sweden. Any questions should be directed to the same addresses. Organizing committee: P O Lindberg (head) U Brannlund A Forsgren K Svanberg ------------------------------ From: Michal Krizek Date: Tue, 02 Feb 93 10:01:18 MDT Subject: Conference: Fifty Years of the Courant Element Conference on the finite element method FIFTY YEARS OF THE COURANT ELEMENT Univ. of Jyvaskyla, Finland, August 30 - September 3, 1993 A 5-day conference on algorithms and theory for the finite element method. The objective of the conference is to provide a forum for discussion of new developments in adaptive methods, error estimates, implementation, parallelization and applications. A limited number of contributed papers will be selected for presentation. Invited speakers include the following: O. Axelsson, I. Babuska, G.F. Carey, J. Douglas, R. Glowinski, C. Johnson, K. Morgan, K.W. Morton, R. Rannacher, V. Thomee, O. Widlund, M. Zlamal. For further information contact FEM 50 Secretariat, Prof. Pekka Neittaanmaki, Dept. of Mathematics, Univ. of Jyvaskyla, P.O.Box 35, SF-40351 Jyvaskyla, Finnland. FAX: 358 41 60 2731 E-mail: neittaanmaki@jylk.jyu.fi ------------------------------ From: Rolf Jeltsch Date: Sun, 31 Jan 1993 18:33:26 +0100 Subject: Assistant Professorships ETH Zuerich In NA-Digest Vol. 92 Issue 48 one, possibly two, Assistant Professorships were announced. These positions are highly competitive since competition is in all fields of mathematics. However ETH Zuerich is planning the installation of a parallel supercomputer in 1993. Hence the department of mathematics also welcomes strong candidates from the area of scientific numerical computing on parallel computers. The official deadline for applications is January 31, 1993. However applications which are only marginally late, 2-3 weeks say, will still be considered. For inquiries contact : Prof. Rolf Jeltsch, Math. Department ETH Zuerich CH-8092 Zuerich, Switzerland Phone +41-1-256 3452 FAX +41-1-252 3401 Here comes the official announcement: ETH ZURICH The Swiss Federal Institut of Technology in Zurich (ETHZ) invites appli- cations for the position of an ASSISTANT PROFESSOR OF MATHEMATICS Duties of the new professor include research as well as an active partici- pation in undergraduate and graduate courses for students of mathematics, natural sciences and engineering. Candidates should have a university degree and succesfully completed own research work. Willingness to teach at all university levels and to cooperate with colleagues is expected. The positions of assistant professors have been established to promote the career of younger scientists. They are available for three years in the first instance, with the possibility of renewal for additional three years. Applications with curriculum vitae and a list of publications should be submitted no later than JANUARY 31, 1993, to the President of the ETH Zurich, Prof. Dr. J. Nuesch, ETH Zentrum, CH-8092 Zurich. The ETHZ specifically encourages female candidates to apply with a view towards increasing the proportion of female professors. Note, that applications have to be sent to: The President of the ETH Zurich Prof. Dr. J. Nuesch ETH Zentrum CH-8092 Zurich. FAX +41-1-261 5669 Rolf Jeltsch ------------------------------ From: Joel Saltz Date: Sun, 31 Jan 93 18:08:29 -0500 Subject: Postdoc Position at Maryland/NIH Maryland/NIH Postdoc The Computer Science Department at the University of Maryland and the Division of Computer Research and Technology at the National Institutes of Health seek a postdoctoral researcher to work with us to carry out applications driven computational science research. The research will be motivated by leading edge biomed- ical applications of interest to the National Institutes of Health. We seek a researcher with an excellent research back- ground in compilers, tools or algorithms for high performance computers. The researcher should also have an intrinsic interest in tackling challenging biomedical applications. This is a joint position with both the Computer Science Department at the Univer- sity of Maryland and the National Institutes of Health. The postdoc's work will be applications driven; the key will be to focus on what are likely to be the major applications classes applicable to emerging problems in computational biology and com- putational medicine. The aim of this work will be to take into account the requirements posed by problems in computational biomedicine in our ongoing efforts to address the closely related systems software goals of: developing methods to ease the burden of coding multiproces- sor machines, developing methods to produce and support codes that can be easily ported between architectures, providing tools for performance tuning and monitoring, along with tools to predict how programs will perform on new architectures, developing techniques for partitioning computational work between a parallel machine's processors, along with methods for mapping or dynamically remapping data into the machine's memory hierarchy, developing visualization methods needed to allow users to: interpret their computational results, and give programmers information needed to optimize the performance of their programs. The intent is for the researcher to work in close collaboration with the research group lead by Joel Saltz in the Computer Sci- ence Department at the University of Maryland and the group lead by Robert Martino of the Division of Computer Research and Tech- nology at the National Institutes of Health. Applicants should send resumes and references to: Johanna Weinstein UMIACS A.V. Williams Building University of Maryland College Park, MD 20742 ------------------------------ From: J. C. Diaz Date: Tue, 2 Feb 1993 11:22:56 -0600 Subject: Positions in Mathematical Sciences at Tulsa U. UNIVERSITY OF TULSA Department of Mathematical and Computer Sciences The Department of Mathematical and Computer Sciences at the University of Tulsa invites applications for tenure track posi- tions in Mathematics beginning in Fall 1993. Salary is open and competitive. Responsibilities include teaching 6 hours per semester at the undergraduate and graduate levels and continuing scholarly activity. Minimum qualifications are a Ph.D. in Mathe- matical Sciences or a related discipline, and a strong commitment to teaching and research. The Department has research programs in Numerical Analysis, Statistics, and Scientific Computing and is seeking candidates in applied mathematics who will support these research areas. However, outstanding candidates in other related areas will also be considered. The mathematics faculty offers B.S. and B.A. degrees in Mathemat- ics, an M.S. degree in Applied Mathematics, and collaborates in the Ph.D. program in Computer Science. In addition to campus and college computing facilities, the departmental research computing facilities include desktop computing for each faculty member, a network of 18 Sun servers and workstations, 2 DEC workstations, a BBN Butterfly, an Intel Hypercube, and a high-resolution 24-bit color graphics system on an Alliant FX-40. The department is also a member of NSFnet. The department has Computer Science research efforts in Artifi- cial Intelligence and Knowledge Based Systems, Numerical Learning Systems, Parallel Computing, Scientific Computing, Databases, and Computer Graphics. The department is housed in the College of Engineering and Applied Sciences, creating a strong opportunity for interdisciplinary collaborations. Applications will be evaluated beginning March 1, 1993. Late applications will be accepted until the position is filled. Send vitae, transcripts (for recent graduates), and three letters of reference to: Dr. Richard A. Redner Search Committee Chairman Mathematical and Computer Sciences University of Tulsa 600 S. College; Tulsa, OK 74104-3189 (email: redner@euler.mcs.utulsa.edu) The University of Tulsa, an equal opportunity/affirmative action employer, is committed to diversifying its faculty and staff. Members of underrepresented groups (people of color, people with disabilities, women, veterans, etc.) are strongly urged to apply. ------------------------------ From: Peter Eris Kloeden Date: Wed, 03 Feb 93 13:00:01 +1100 Subject: Lecturership at Deakin University, Australia The following position was advertised in the ``Australian'' newspaper on february 3rd 1993. LECTURER IN MATHEMATICS Deakin University, Geelong, Victoria, Australia Applications are invited for a position of lecturer (level B) in the School of Computing and Mathematics on the Geelong campus. The successful applicant will be required to lecture in numerical analysis and other mathematics or statistics units at undergraduate and honours level in both on-campus and off-campus modes, to supervise postgraduate students and to be actively involved in research. A Ph.D with a demonstrable research record in some computational aspect of mathematics or statistics is required. The position is available from early 1993 and is tenurable. Applications close on 19th February 1993. Salary range A$41,000---A$48,688 pa. Reference number 93/05 Submit applications with names and addresses of 3 referees to Personnel Officer - Appointments Personnel Branch Deakin University, Geelong 3217 Victoria Australia For further information contact Professor A. Goscinski, Head of School of Computing & Mathematics, phone +61(52)272088, InterNet ang@deakin.edu.au or Professor P. Kloeden, Professor of Mathematics, phone +61(52)272631, InterNet kloeden@deakin.edu.au ------------------------------ From: Adolfy Hoisie Date: Thu, 4 Feb 1993 16:21:41 -0500 Subject: Job Opening at Cornell Theory Center The Cornell Theory Center has an anticipated opening for a professional in the area of Parallel Algorithms and Performance. The ideal candidate would hold an advanced degree in a scientific discipline and be experienced in the effective implementations of mathematical algorithms on various parallel architectures. The succesful candidate will be part of a team involved in research and development projects in the area of parallel mathematical algorithms, analysis of grand challenge applications, and benchmarking and performance assessment of parallel architectures. The ability to work in a moderatly structured environment, and to interact freely with the other members of the team is of extreme importance. Cornell Theory Center offers a very attractive working environment and competitive salaries. Currently, the center has two 64-processor Kendall Square Research machines and a set of RS/6000 workstations clustered with a variety of high-speed interconnects. In addition, the center is collaborating with IBM's Highly Parallel Scalable Supercomputing Laboratory to help advance its parallel technology. For inquiries contact Adolfy Hoisie, hoisie@tc.cornell.edu, na.hoisie@na-net.ornl.gov. Interested applicants may send cover letters and resumes to: Julia Addy, Personnel Manager, 529 Eng. & Theory Center Bldg., Cornell Theory Center, Cornell University, Ithaca, NY 14853-3801 ------------------------------ From: Andrew Stuart Date: Fri, 5 Feb 93 12:20:45 -0800 Subject: Graduate Traineeships at Stanford STANFORD UNIVERSITY --- SCCM PROGRAM PROGRAM IN SCIENTIFIC COMPUTING AND COMPUTATIONAL MATHEMATICS NSF GRADUATE RESEARCH TRAINEESHIPS Applicants are sought for several National Science Foundation Graduate Research Traineeships (GRTs) in the SCCM Program at Stanford University. These GRTs provide financial support for 5 years. It is anticiapted that two traineeships will be available from fall 1993 and a further three from fall 1994. The SCCM Program provides an interdisciplinary graduate training based around a core of material in mathemtical and numerical analysis together with the study of related application areas, application specific computational methods and related issues in computer science. For further information please contact Gene Golub golub@sccm.stanford.edu 415-723-3124 or Andrew Stuart stuart@sccm.stanford.edu 415-723-8142 or write to Mary Washburn SCCM Admissions Co-ordinator Department of Computer Science Stanford University CA94305-2140. NOTE: -THESE GRTs ARE SUBJECT TO NSF FINAL BUDGETARY APPROVAL ------------------------------ From: Alan Laub Date: Fri, 5 Feb 93 14:43:50 PST Subject: Position at Univ. Calif. Santa Barbara University of California, Santa Barbara Electrical and Computer Engineering Applications are invited for two tenure-track assistant professor positions, available effective 07/01/93. One position is in the area of massively parallel algorithms (with applications in control, communications, or signal processing). The other position (higher level appointment is possible for outstanding individuals) is in the area of computer engineering, preferably in computer architectures, digital design, and VLSI testing. Normally, completion of a doctorate is required at the time of the appointment. Candidates should have an established research reputation or outstanding research potential, the ability to attract external research funding, and a strong commitment to teaching at the undergraduate and graduate levels. Applicants should send their resumes and the names and addresses of at least four professional references to: Faculty Search Committee Department of Electrical and Computer Engineering University of California Santa Barbara, CA 93106-9560 Applications will be received until the positions are filled. UCSB is an Equal Opportunity/Affirmative Action employer. ------------------------------ From: David Dougherty Date: Sat, 6 Feb 93 13:01:28 PST Subject: Post Doc Position at University of Vermont POST-DOC AVAILABLE AT UNIVERSITY OF VERMONT A post-doc position is available immediately at the University of Vermont. This is a one-year appointment with a possibility of extension. The successful candidate will work at the intersection of high-performance distributed computing, groundwater modeling, and nonlinear optimization. Evidence of expertise in, or related to, at least two of these areas is necessary. Applicants should send (1) a current curriculum vitae, (2) an abstract of the dissertation, and (3) three letters of recommendation to Professor David E. Dougherty, Department of Civil Engineering, University of Vermont, Burlington, VT 5405-0156. E-mail submittals will be accepted at ddougher@emba.uvm.edu (voice: 802-656-1920, fax: 802-656-8446). ------------------------------ From: Bob Voigt Date: Fri, 5 Feb 1993 14:13:26 -0500 Subject: Grand Challenge Applications Groups GRAND CHALLENGE APPLICATIONS GROUPS Fiscal Year 1993 Program Announcement A Component of the U.S. High Performance Computing and Communications Program NATIONAL SCIENCE FOUNDATION The National Science Foundation (NSF) announces opportunities for group oriented research for Fiscal Year 1993 in connection with the U.S. High Performance Computing and Communications (HPCC) Program. Six to eight proposals are expected to receive funding as Grand Challenge Application Groups as a result of the opportunities described in this announcement. Seven awards were made under this activity in Fiscal Year 1992. Activities supported under this announcement are expected to achieve significant progress on (1) fundamental problems in science and engineering whose solution could be advanced by applying high performance computing techniques and resources, and (2) enabling technologies which facilitate those advances. In addition, it is anticipated that these activities will generate significant new research in mathematics, computer science, engineering and other scientific disciplines. This HPCC activity will provide funding for multidisciplinary groups of scientists, engineers, mathematicians and computer scientists to apply emerging high performance computing and communications systems to advance the solution of diverse science and engineering problems. The emphasis will be on support for groups requiring HPCC capabilities, where such focused, cross disciplinary support is generally unavailable or difficult to obtain. Any area of science and engineering supported by NSF is eligible for funding under this solicitation. Proposers interested in submitting a formal proposal must submit 12 copies of a preproposal by March 15, 1993. The deadline for receipt of proposals is June 16, 1993. The full text of this announcement is available on STIS as document 93-10. It may be obtained by e-mail by sending a message to stisserv@nsf.gov (or BITNET: stisserv@NSF) with the text of the message: Request: stis Topic: index You will receive a list of all documents on STIS and instructions for retrieving them. Inquiries relative to this announcement should be addressed via electronic mail to: rvoigt@nsf.gov (Internet) or rvoigt@nsf (Bitnet). The Grand Challenge Applications Groups represent one, but not the only approach to support HPCC activities. ------------------------------ From: C. Brezinski Date: Di, 7 Fev 93 17:12:57 +0100 Subject: New Journal: Annals of Numerical Mathematics ANNALS OF NUMERICAL MATHEMATICS ``Annals of Numerical Mathematics'' consists of volumes dedicated to the presentation of the current level and the main trends of the development of specific areas of numerical mathematics. Each volume contains original papers, survey articles, selected and tested computer programs,..... ``Annals of Numerical Mathematics'' plays an active role in the publication of well-refereed conference proceedings or selected papers thereof and in publishing volumes of contributed papers on well defined topics of numerical mathematics from highly theoretical to the algorithmic and also to the very applied. Every volume has one or more Guest Editors who are responsible for the collection of papers to appear in that volume, for the refereeing process and for the time schedule. All papers are subject to peer refereeing and there is no page charge. Each author of a paper published will receive 25 reprints of his contribution. Interested conference organizers as well as potential Guest Editors in all areas of numerical mathematics are cordially invited to put forward their suggestions to the Editor-in-Chief: Prof. C. Brezinski Paris Drouot, BP 18 75433 - Paris cedex 09 France fax: (33) 20 43 68 69 email: brezinsk@frcitl81.bitnet brezinsk@citil.citilille.fr Editorial board: C.K. Chui (Texas A&M Univ., College Station, USA), P. Deuflhard (Konrad Zuse Zentrum, Berlin, Germany), T.O. Espelid (Univ. of Bergen, Norway), L.F. Shampine (Southern Methodist Univ., Dallas, USA), E. Van de Velde (Caltech, Pasadena, USA), G.A. Watson (Univ. of Dundee, Scotland), M.F. Wheeler (Rice Univ., Houston, USA), O. Widlund (Courant Inst., New York, USA). ------------------------------ From: Richard Brualdi Date: Mon, 1 Feb 93 12:58:10 CST Subject: Contents: Linear Algebra and its Applications Contents LAA Volume 179, January 15, 1993 Joseph R. Siler (Pittsburg, Kansas) and Richard D. Hill (Pocatello, Idaho) Reflectors on Vector Spaces 1 Enzhong Fu and Thomas L. Markham (Columbia, South Carolina) On the Eigenvalues and Diagonal Entries of a Hermitian Matrix 7 Rajendra Bhatia and Tirthankar Bhattacharyya (New Delhi, India) A Generalization of the Hoffman-Wielandt Theorem 11 Isaiah L. Kantor (Lund, Sweden) Description of the Optimal Solution Set of the Linear Programming Problem and the Dimension Formula 19 Magolu monga-Made (Brussels, Belgium) Analytical Bounds for Block Approximate Factorization Methods 33 Arieh Lev (Tel-Aviv, Israel) Products of Cyclic Conjugacy Classes in the Groups PSL(n, F) 59 George-Othon Glentis and Nicholas Kalouptsidis (Athens, Greece) Efficient Algorithms for the Solution of Block Linear Systems With Toeplitz Entries 85 D. A. Gregory, S. Kirkland, and N. J. Pullman (Kingston, Ontario, Canada) Power Convergent Boolean Matrices 105 Miroslav Fiedler (Czech Republic) Structure Ranks of Matrices 119 Miroslav Fiedler (Czech Republic) and Thomas L. Markham (Columbia, South Carolina) A Characterization of the Moore-Penrose Inverse 129 Wenchao Huang (Madison Wisconsin) On the Sandwich Semigroups of Circulant Boolean Matrices 135 Masatoshi Fujii (Osaka, Japan), Takayuki Furuta (Tokyo, Japan), and Eizaburo Kamei (Osaka, Japan) Furuta's Inequality and Its Application to Ando's Theorem 161 Xiao-Wen Chang and Jia-Song Wang (Nanjing, People's Republic of China) The Symmetric Solution of the Matrix Equations AX+YA=C, AXAT+BYBT=C, and (ATXA, BTXB)=(C, D) 171 Ren-cang Li (Berkeley, California) A Perturbation Bound for Definite Pencils 191 Teresa Cortes (Zaragoza, Spain) A Note on the Lattice Definability of Bernstein Algebras 203 Joel E. Cohen (New York, New York), Yoh Iwasa (Fukuoka, Japan), Gh. Rautu (Bucuresti, Romania), Mary Beth Ruskai, (Lowell, Massachusetts), Eugene Seneta (Sydney, Australia), and Gh. Zbaganu (Bucuresti, Romania) Relative Entropy Under Mappings by Stochastic Matrices 211 Bernd Fritzsche and Bernd Kirstein (Leipzig, Germany) Inverse Problems for Positive Hermitian Block Toeplitz Matrices and Nondegenerate Schur Sequences 237 G. Corach (Buenos Aires, Argentina), H. Porta (Urbana, Illinois), and L. Recht (Caracas, Venezuela) Jacobi Fields on Space of Positive Operators 271 ------------------------------ From: Marijcke Haccou Date: Mon, 1 Feb 1993 14:33:21 +0100 Subject: Contents: Computational and Applied Mathematics Contents of the Special Issue on Numerical Methods for Ordinary Differential Equations. Journal of Computational and Applied Mathematics. Vol.45(1-2). J.C. BUTCHER, J.R. CASH & P.J. VAN DER HOUWEN Preface W. AUZINGER, R. FRANK & G. KIRLINGER Modern convergence theory for stiff initial value problems A. BELLEN, Z. JACKIEWICZ & M. ZENNARO Time point relaxation Runge-Kutta methods for ordinary differential equations K. BURRAGE Efficient block predictor-corrector methods with a small number of corrections K. BURRAGE & R.P.K. CHAN On smoothing and order reduction effects for implicit Runge-Kutta formulae J.C. BUTCHER & P.B. JOHNSTON Estimating local truncation errors for Runge-Kutta methods M. CALVO, J.I. M,ONTIJANO & L. RANDEZ A0-stability of variable stepsize BDF methods J.R. CASH & S. SENNANI A new approach to solving non-stiff initial value problems J.R. CASH & H.H.M. SILVA On the numerical solution of a class of singular two-point boundary value problems G.J. COOPER & R. VIGNESVARAN Some schemes for the implementation of implicity Runge-Kutta methods M.R. CRISCI, P.J. VAN DER HOUWEN, E. RUSSO & A. VECCHIO Stability of parallel Volterra-Runge-Kutta methods L. DIECI On the decoupling of dichotomic linear hamiltonians. Considerations on integrating symmetric differential Riccati equations T. EIROLA Aspects of backward error analysis of numerical ODE's I. GLADWELL & M. PAPRZYCKI Parallel solution of almost block diagonal systems on the CRAY Y-MP using Level 3 BLAS D.J.HIGHAM The tolerance proportionality of adaptive ODE solvers L.LIU & R.D.RUSSELL Linear system solvers for boundary value ODEs B.P. SOMMEIJER Parallel-iterated Runge-Kutta methods for stiff ordinary differential equations R. VERMIGLIO Multistep high order interpolants of Runge-Kutta methods K. WRIGHT Parallel implemention of block bi-diagonal matrices in the solution of ordinary differential boundary value problems ------------------------------ From: SIAM Date: Wed, 03 Feb 93 12:34:47 EST Subject: Contents: SIAM Numerical Analysis Tentative Table of Contents SIAM Journal on Numerical Analysis Volume 30, Number 3, June 1993 Second-Order Convergence of a Projection Scheme for the Incompressible Navier-Stokes Equations with Boundaries Thomas Y. Hou and Brian T. R. Wetton Fast Iterative Solution of Stabilised Stokes Systems Part I: Using Simple Diagonal Preconditioners Andrew Wathen and David Silvester Convergence of Fourier Methods for the Navier-Stokes Equations Weinan E Convergence of Finite Difference Schemes for Conservation Laws in Several Space Dimensions: A General Theory Frederic Coquel and Philippe Le Floch A Maximum Principle Satisfying Modification of Triangle Based Adaptive Stencils for the Solution of Scalar Hyperbolic Conservation Laws Xu-Dong Liu A Collocation Method for the Numerical Solution of Laplace's Equation with Nonlinear Boundary Conditions on a Polygon Robert L. Doucette The Computation of Water Waves Modelled by Nekrasov's Equation G. A. Chandler and I. G. Graham A New Time Discretization for the Radiative Transfer Equations: Analysis and Comparison with the Classical Discretization T. Nkaoua and R. Sentis On the Uniform Convergence of the Scharfetter-Gummel Discretization in One Dimension Eugene C. Gartland, Jr. A Regularization Method for the Numerical Inversion of the Laplace Transform Chen Wei Dong Implementation of Linear Multistep Methods for Solving Constrained Equations of Motion Florian A. Potra Optimal Equivalent Preconditioners Thomas Manteuffel and James Otto Parallel Factorizations for Tridiagonal Matrices P. Amodio, L. Brugnano, and T. Politi Preconditioned Iterative Methods for Solving Toeplitz-plus-Hankel Systems Ta-Kang Ku and C.-C. Jay Kuo Galerkin-Petrov Methods for Bergman Space Toeplitz Operators Albrecht Bottcher and Hartmut Wolf Inverse Interval Matrix J. Rohn Discrete Variable Methods for the m-Dependent Variable Nonlinear, Extremal Problem in the Calculus of Variations, II John Gregory and Cantian Lin Numerical Evaluation of Line Integrals K. Atkinson and E. Venturino The Generic Dimension of the Space of C1 Splines of Degree d >= 8 on Tetrahedral Decompositions Peter Alfeld, Larry L. Schumaker, and Walter Whiteley ------------------------------ From: SIAM Date: Fri, 05 Feb 93 10:46:34 EST Subject: Contents: SIAM Optimization SIAM Journal on Optimization May 1993 Volume 3, Number 2 CONTENTS A Finite Smoothing Algorithm for Linear l_1 Estimation Kaj Madsen and Hans Bruun Nielsen Uniformly Extremal Solutions in Sobolev Function Spaces for the Quadratic Case: Characterization and Applications L. S. Thakur Partially Finite Programming in L_1 and the Existence of Maximum Entropy Estimates J. M. Borwein and A. S. Lewis Reverse Auction and the Solution of Inequality Constrained Assignment Problems Dimitri P. Bertsekas, David A. Castanon, and Haralampos Tsaknakis A Globally and Superlinearly Convergent Algorithm for Convex Quadratic Programs with Simple Bounds Thomas F. Coleman and Laurie A. Hulbert A New Method for Optimal Truss Topology Design Aharon Ben-Tal and Martin P. Bendsoe Quantitative Stability of Variational Systems II. A Framework for Nonlinear Conditioning Hedy Attouch and Rojer J.-B. Wets Partial-Update Newton Methods for Unary, Factorable, and Partially Separable Optimization Donald Goldfarb and Siyun Wang Large-Step Interior Point Algorithms for Linear Complementarity Problems Masakazu Kojima, Yoshifumi Kurita, and Shinji Mizuno On the Superlinear Convergence of Interior-Point Algorithms for a General Class of Problems Yin Zhang, Richard Tapia, and Florian Potra Pointwise Broyden Methods C. T. Kelley and E. W. Sachs ------------------------------ End of NA Digest ************************** -------