Subject: NA Digest, V. 95, # 17 NA Digest Sunday, April 23, 1995 Volume 95 : Issue 17 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Intro. to Scientific, Symbolic, and Graphical Computation Fortran 90 Tutorial Software for Hankel Transform Sought Educational Finite Element Software Sought Multiresponse Nonlinear Least Square Fitting IMANA Newsletter WWW Server for BIT Band Systems Survey Colloquium on Systems, Control and Computation Dundee Conference 1995 IMACS Iterative Linear Algebra Symmposium in Bulgaria Method of Lines Workshop PhD Studentship at University of Salford Postdoctoral Position at MIT Postdoctoral Position at University of Durham Contents, Advances in Computational Mathematics Contents, BIT Numerical Mathematics Contents, SIAM Scientific Computing Contents, SIAM Numerical Analysis 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: Eugene Fiume Date: Mon, 17 Apr 1995 09:30:10 -0400 Subject: Intro. to Scientific, Symbolic, and Graphical Computation Announcing a new book: An Introduction to Scientific, Symbolic and Graphical Computation Eugene Fiume ISBN 1-56881-051-2 Published by: AK Peters, Ltd. 289 Linden Street Wellesley, MA 02181 U.S.A. 617 235-2210 (phone) 617 235-2404 (fax) kpeters@math.harvard.edu Courseware: http://www.dgp.toronto.edu/people/elf/ssgc.html Overview Through the use of symbolic and graphical techniques, this book explores parametric curves, interpolation and approximation, signal theory (sampling, filtering, reconstruction, and the sampling theorem), quadrature, and the solution of nonlinear equations. The emphasis is on doing rather than proving, which makes it a good precursor to more rigorous courses in scientific computation, signals and systems, and computer-aided geometric design. A main theme of this book is that there is a fundamental unity among these topics that symbolic and graphical techniques can help to amplify. More detail on the book, including table of contents, preface and index is available via the WWW at the URL http://www.dgp.toronto.edu/people/elf/ssgc.html An extensive repository of courseware is also available. I have developed a first/second year undergraduate course based on this material, and have taught it for several years. In my department, it is viewed as an introduction to mathematical computation that complements a traditional introduction to computer science. I would be happy to chat with potential instructors about putting together a course based on my book. I can be reached at elf@dgp.toronto.edu, or Eugene Fiume Department of Computer Science University of Toronto 10 King's College Circle Toronto, Ontario, Canada M5S 1A4 (+1) 416 978-5472 (office) (+1) 416 978-5184 (fax) Regards to all, Eugene. ------------------------------ From: Bo Einarsson Date: Tue, 18 Apr 95 08:47:25 +0200 Subject: Fortran 90 Tutorial Dear NA-NET I have revised the Fortran 90 tutorial by Yurij Shokin and myself, "Fortran 90 for the Fortran 77 Programmer", into an hypertext document, complete with both internal and external links. It is readable on WWW with Mosaic or Netscape. You can find the main page for the tutorial using the following URL http://www.nsc.liu.se/f77to90.html Best wishes, Bo Einarsson ------------------------------ From: George Miel Date: Mon, 17 Apr 1995 12:58:30 -0700 Subject: Software for Hankel Transform Sought Can someone recommend robust software, in double precision if possible, for evaluating the Hankel Transform F(y) = integral(0 to 1) x*J_0(xy)*f(x) dx ? A concern is that the given function in my application has a right-hand singularity, f(x) = g(x)/sqrt(1-x*x), smooth g(x), and y can be very large. George Miel University of Nevada miel@cs.unlv.edu ------------------------------ From: Vincent Allan Barker Date: Fri, 21 Apr 95 16:12:01 METDST Subject: Educational Finite Element Software Sought A teaching team at the Technical University of Denmark is looking for public domain software for use in an introductory course on the finite element method for solving 2-D partial differential equations. The course runs fulltime for 3 weeks and is primarily devoted to the development of FORTRAN codes for problem solution. Specifically, we would like to find routines for pre- and post-processing; i.e., automatic (graphic) mesh generation and graphical presentation of the results. The computational environment includes a HP 9000 (Model 700) running HP-UX (Unix) v. 9.05 . Fortran is the preferred programming language. Any help in locating FEM software for this purpose would be much appreciated. Vincent A. Barker Institute of Mathematical Modelling Technical University of Denmark, Bldg. 305 DK-2800 Lyngby Denmark e-mail: vab@imm.dtu.dk ------------------------------ From: Jozef Gembarovic Date: Thu, 13 Apr 1995 11:16:51 +0200 Subject: Multiresponse Nonlinear Least Square Fitting Hi, I am looking for a multiresponse nonlinear least square fitting program (preferably in PASCAL or C++) that can be used to find the desired parameters (such as thermal diffusivity, thermal conductivity or heat capacity) in a known nonlinear model (solution of the heat conduction equation - sums of Bessel functions and exponentials). The data (temperature) to be fitted depend on time (equidistant) and the position and they were taken from 4 thermocouples attached to the sample. I appreciate any assitance you may be able to offer. Jozef Jozef Gembarovic joe@unitra.sk ------------------------------ From: I.Duff@letterbox.rl.ac.uk (Iain Duff) Date: Tue, 18 Apr 95 13:28:46 BST Subject: IMANA Newsletter IMANA Newsletter Volume 19(3). April 1995. The part of the April issue of the IMANA Newsletter that I have available electronically can be accessed through anonymous ftp to RAL. The details of how to access it are given below. If readers wish to receive complete paper copies on a regular basis they should write to: Karen Jenkins Catherine Richards House Institute of Mathematics and its Applications 16 Nelson Street Southend-on-Sea Essex SS1 1EF UK who will supply further information and subscription rates. To get a copy ftp 130.246.8.32 When prompted for a userid, reply with anonymous and give your email address as a password. Then directory to pub/imana (cd pub/imana) Set mode to binary (bin) Copy is in file april95.gz (get april95.gz) Such machine readable information as I have for the conference section can be found in file april95.conf.gz. There are two compressed postscript files for some of the other articles, lay.ps.gz for the CERFACS INTERNATIONAL LINEAR ALGEBRA YEAR and iciam.ps.gz for ICIAM 95. Both files should be gunzipped whence they should be found to be in plain ASCII format. ------------------------------ From: Ake Bjorck Date: Wed, 19 Apr 95 10:51:09 +0200 Subject: WWW Server for BIT I am pleased to announce the establishment of a WWW server for the journal BIT--Numerical Mathematics at: http://math.liu.se/BIT/ This home page, still in development, contains list of contents, LaTeX style file, a sample BIT paper and other useful information. Sincerely, {\AA}ke Bj\"orck, Managing Editor Department of Mathematics Link\"oping University S-581 83 Link\"oping, Sweden email: akbjo@math.liu.se FAX: +46-13 100 746 ------------------------------ From: Jack Dongarra Date: Wed, 19 Apr 1995 11:48:37 -0400 Subject: Band Systems Survey Dear Colleagues, As part of the ScaLAPACK project we intend to include software for the solution of banded linear systems. Since algorithm performance is greatly impacted by the characteristics of the system being solved, we solicit your input to help us design our software for the kinds of systems found in practice. ScaLAPACK is a freely available software package for scalably solving problems in numerical linear algebra on distributed memory parallel computers. If you have a need to solve large banded linear systems, now is the time to provide us with your requirements. We ask you to fill out the following short questionnaire. If you have colleagues(engineers, physicists, or researchers in other disciplines) who may not normally read NA-NET but who may be working with banded matrices, we encourage you to pass this questionnaire on to them. We hope to receive your responses within the next few weeks. A summary of responses will be posted to NA-NET. Andy Cleary Jack Dongarra Xiaobai Sun Univ. of Tenn. Univ. of Tenn./ORNL Duke Univ. (For more information on ScaLAPACK, see: http://www.netlib.org/scalapack ) ________________________________________________________ | Questionnaire on the use of Banded Linear Systems | -------------------------------------------------------- We are concerned with applications in which a requirement is the solution of the linear system A*X = B in which A is an n x n banded matrix. A matrix is banded if there are two parameters bl and bu such that i > j & (i-j) > bl -> A(i,j) = 0, and j > i & (j-i) > bu -> A(i,j) = 0. That is, elements in the lower triangle more than bl elements from the main diagonal are identically zero and likewise for elements in the upper triangle more than bu elements from the main diagonal. Elements of the main diagonal may or may not be zero depending on other characteristics of the problem. The matrices X and B are n x k matrices. The j-th column of X, X(:,j), is the solution of the system with respect to the right hand side B(:,j). If your work involves the solution of such systems, we would like to ask you to fill out the following questionnaire and e-mail to: cleary@cs.utk.edu --------------------------Snip Here----------------------------- Personal Details 1) Your Name: 2) Your Affiliation: 3) The nature of your project/research: Problem characteristics 3) How many equations (n) do your banded linear systems typically have? 4) How many diagonals above/below the main diagonal (bl, bu) are non-zero? 5) How many right-hand sides (k) do you typically have at once? 6) Are your matrices symmetric/Hermitian? If so, are they positive definite ? 7) Are your matrices diagonally dominant ? Any other characteristics ? 7) Do you have any preference for iterative algorithms or direct algorithms ? If direct methods are used, is partial pivoting required and satisfactory for numerical stability? Problem generation 8) How do banded linear systems arise in your application, in particular, are the banded systems typically generated as stand-alone problems, or as a step in a longer series of calculations? 10) Are you currently using parallel computers to solve these problems? 11) If you are using a parallel computer for these problems, where are the matrices A, B and X located on entry into a system solution routine ? Are they on disk(s), in a single processor's (or host's) memory, or distributed amongst the processors? If the latter, what distribution do you use? ------------------------------ From: Nancy Nichols Date: Thu, 20 Apr 1995 19:39:32 +0100 Subject: Colloquium on Systems, Control and Computation ONE-DAY COLLOQUIUM ON "TECHNIQUES FOR EIGENSTRUCTURE ASSIGNMENT IN CONTROL SYSTEMS" Friday May 12, 1995 Reading University, UK Department of Mathematics Room 113 12:00 noon John Hench (Academy of the Czech Republic, UTIA) "Producing damping controllers via the Riccati equation" 3:00 pm Andre Tits (Universities of Maryland and Louvain-la-Neuve) "Globally convergent algorithms for robust pole assignment by state feedback" Lunch (cafeteria style) will be available in the Refectory Blue Room. Tea will be served at 4:15 pm in Room 112. Visitors are welcome. Abstracts, travel information and other details available from Dr. N.K. Nichols Dept. of Mathematics, University of Reading Box 220 Reading RG6 2AX Tel +44 - (0)1734 - 318988 n.nichols@reading.ac.uk ------------------------------ From: David F Griffiths Date: Fri, 21 Apr 95 13:01:47 BST Subject: Dundee Conference 1995 16th BIENNIAL CONFERENCE ON NUMERICAL ANALYSIS University of Dundee, Scotland, UK 27-30th June 1995 Deadline for submission of abstracts: May 20, 1995 Deadline for registrations: June 3, 1995. The conference will be preceded on Monday, 26th June by talks from candidates shortlisted for the Leslie Fox Prize. Information is available to www users through the URL http://www.mcs.dundee.ac.uk:8080/~dfg/95conf/contents.html through which it is also possible to register online. Details are given of speakers, fees, candidates for the Leslie Fox Prize as well as travel to and from Dundee. Dr D F Griffiths Biennial Conference on Numerical Analysis Department of Mathematics and Computer Science The University, Dundee, DD1 4HN Scotland, UK Tel: +44 (1382) 344467 e-mail: dfg@uk.ac.dund.mcs FAX: +44 (1382) 345516 or: na.griffiths@na-net.ornl.gov Please note change of area codes. ------------------------------ From: Panayot S. Vassilevski Date: Fri, 21 Apr 95 16:17:36 +0300 Subject: IMACS Iterative Linear Algebra Symmposium in Bulgaria Last Announcement and Call for Registration IMACS INTERNATIONAL SYMPOSIUM ON ITERATIVE METHODS IN LINEAR ALGEBRA June 17--20, 1995, Blagoevgrad, Bulgaria The Symposium will provide a forum for presentation and discussion of the recent advances in the ANALYSIS, IMPLEMENTATION and INDUSTRIAL APPLICATIONS of iterative methods for solving large linear systems of equations and for determining eigenvalues, eigenvectors or singular values of large matrices. More than 80 sciences from more than 20 countries will take part in this International meeting. INVITED LECTURERS OWE AXELSSON, KUN, Nijmegen, The Netherlands TONY F. CHAN, UCLA, Los Angeles, CA, USA IAIN DUFF, Rutherford Appleton Lab, Oxon, UK RICHARD EWING, Texas A&M University, College Station, TX, USA YOUSEF SAAD, University of Minnesota, Minneapolis, MN, USA JINCHAO XU, Penn State University, University Park, PA, USA HARRY YSERENTANT, UT, Tuebingen, Germany INTERNATIONAL PROGRAM COMMITTEE Owe Axelsson, Randolph Bank, Robert Beauwens, Francoise Chatelin, Ivan Dimov, Stefka Dimova, Roland Freund, Krassimir Georgiev, Apostolos Hadjidimos, Sven Hammarling, Oleg Iliev, Michail Kaschiev, David Kincaid, Raytcho Lazarov, Jean- Francois Maitre, Bernard Philippe, Henk van der Vorst, Junping Wang LOCAL ORGANIZING COMMITTEE Krassimir Georgiev, Oleg Iliev, Tanya Kostova (secretary), Ivan Lirkov, Svetozar Margenov (co-chairman), Panayot S. Vassilevski (co-chairman), Lyudmil Zickatanov SPECIAL SESSIONS 1. "High-Performance Computing in Geoscience; Iteration methods for elasticity and plasticity problems", by Owe Axelsson, KUN, Nijmegen, The Netherlands and Panayot S. Vassilevski, CICT at BAS, Sofia, Bulgaria; 2. "The influence of high-nonnormality on the reliability of iterative methods in Computational Linear Algebra"}, by Francoise Chatin-Chatelin, University of Paris IX, Dauphine and Valerie Fraysse, CERFACS; 3. "Krylov-subspace methods for nonsymmetric and indefinite linear systems", by Roland Freund, AT \& T Bell Lab., Murray Hill, USA; 4. "Industrial problems" by Yousef Saad, University of Minnesota, Minneapolis, USA, and Oleg Iliev, Institute of Mathematics, BAS, Sofia, Bulgaria; 5. "Parallel Algorithms for Krylov Spaces" by Bernard Philippe, IRISA, Rennes, France; 6. "Preconditioning techniques and their parallel implementation" by Robert Beauwens, ULB, Brussels, Belgium. CONTACT PERSONS Local Organizing Committee: Svetozar D. Margenov and Panayot S. Vassilevski CICT at BAS, "Acad. G. Bontchev" street, Block 25A 1113 Sofia, Bulgaria E-mail: imacs95@bgearn.bitnet Tel: (359) 2-713-66 10 or (359) 2-713-66 12 FAX: (359) 2-70 72 73 Conference Office: (after June 15) Nadejda Afendova American University in Bulgaria 2700 Blagoevgrad E-mail: Nadia@nws.aub.bg Tel: (359) 73-25421, ext.212 FAX: (359) 73-29021 ------------------------------ From: Ian Gladwell Date: Fri, 21 Apr 95 13:21 CDT Subject: Method of Lines Workshop METHOD OF LINES WORKSHOP FINAL ANNOUNCEMENT A Workshop on the Method of Lines for Time-Dependent Problems will be held at the University of Kentucky in Lexington, Kentucky, from Wednesday May 31 1995 until Saturday June 3 1995. Total attendance at the conference will be limited to sixty participants. The invited speakers are: Martin Berzins (Leeds), Kevin Burrage (Queensland), George Byrne (Illinois Institute of Technology), Joe Flaherty (Rensselaer Polytechnic Institute), Mac Hyman (Los Alamos), Ken Jackson (Toronto), Ohannes Karakashian (Tennessee), Linda Petzold (Minnesota), Bob Russell (Simon Fraser), Bill Schiesser (Lehigh), Skip Thompson (Radford), Jan Verwer (CWI, Amsterdam). Participants will have the opportunity to propose a presentation on a topic associated with the method of lines for time-dependent partial differential equations or with aspects of the (parallel) solution of ordinary differential equations which may have implications for the method of lines for time-dependent problems. Presentations on applications of the Method of Lines will be welcomed. Some discussion panels will also be organised. There will be a refereed conference proceedings published in a special issue of Applied Numerical Mathematics. Presenters of invited and contributed papers will be encouraged to submit papers for the proceedings. Further details may be obtained by e-mailing mol@glenclova.mines.colorado.edu The workshop is supported by the National Science Foundation, the Institute for Mathematics and its Applications, the Center for Computational Sciences of the University of Kentucky, Dedman College of Southern Methodist University, and the Colorado School of Mines. Graeme Fairweather and Ian Gladwell ------------------------------ From: S. Amini Date: 18 Apr 95 15:59 Subject: PhD Studentship at University of Salford EPSRC CASE Studentship Dear Colleagues Please bring the following information to the attention of any interested Final Year Mathematics Undergraduate or MSc student in your Department. The Engineering and Physical Sciences Research Council (EPSRC) has awarded a CASE studentship with the Defence Research Agency (DRA) as the cooperating body on the project: Wavelet Based Algorithms for Boundary Integral Equations. The studentship, tenable from October 1995, is for a 3 year programme of research leading to a PhD. The applicant must possess or be about to obtain a good honours degree in Mathematics or related subject. For further details please contact: Dr S Amini Department of Mathematics and Computer Science University of Salford Salford M5 4WT Greater Manchester UK Tel: ++44 161 745 5353 (Direct) Fax: ++44 161 745 5559 Email: S.Amini@mcs.salford.ac.uk ------------------------------ From: J. Milgram Date: Tue, 18 Apr 95 19:50:28 PDT Subject: Postdoctoral Position at MIT POST-DOCTORAL POSITION AVAILABLE FOR STUDIES OF NUMERICAL HYDRODYNAMICS OF UNDERWATER VEHICLES The project for this position involves: 1. Adding lifting elements to a potential based BIEM panel code, 2. Determining forces and moments on underwater vehicles under the influence of solid bottom boundaries and a free surface upper boundary with sea waves on it, 3. Developing both theoretical and semi-empirical methods to determine the net forces and moments provided by jet and tunnel thrusters to an underwater vehicle with forward speed and in the proximity of rigid and free surfaces. 4. Generating mathematical models of surface-induced forces and moments on underwater vehicles and adding them to existing computer programs for the maneuvering of underwater vehicles. Applicants should be first and foremost fundamentally strong in the cognizant hydrodynamic and mathematical fields, be fully competent in the associated programming, and be familiar with programming and use of personal computers, UNIX workstations and supercomputers. Most of the programming is done in Fortran 77, but some parallel machine programming may be in Fortran 90 and some graphical I/O may be in C. The project personnel will include a faculty member, 2 or 3 graduate students and the post-doc to be added. Interested applicants should send a resume and names, street and email addresses and phone numbers; by mail, by Fax or by an e-mail text file (no postscript files or other forms requiring translation please) to: Ms. Cindy Dernay Room 5-318 Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge, MA 02139 FAX (617) 253-8689 email: cdernay@mit.edu ------------------------------ From: G. R. Foulger Date: Fri, 21 Apr 95 20:02:29 BST Subject: Postdoctoral Position at University of Durham FELLOWSHIP OPPORTUNITY FOR NUMERICAL PERSON IN NUMERICAL GEOPHYSICS I am a geophysicist at Dept. Geological Science, Univ. Durham, U.K. and have been working for several years making repeated survey measurements in Iceland using a GPS satellite technique. The mid-Atlantic spreading plate boundary passes through the middle of Iceland, and thus there is, on average, several cm of "plate" movement in Iceland, along with large earthquakes and volcanic eruptions. We now have an extensive set of measurements of these movements. Somewhat surprisingly, we have found that the motion is not regular and "plate-like" but highly variable. What happens is that every few hundred years there is a big event, e.g. a very large earthquake, which causes deformations of several metres locally in the Earth's crust. The shallow part of the Earth is well-modelled by an elastic layer about 10 km thick overlying viscoelastic material that may obey a law such as power-law creep or Newtonian viscoelasticity. In such a structure, large, local movements do not immediately affect distant areas, but gradually propagate away from the source over time. We have recently completed modelling of our results using an analytical method that calculates motion in an elastic plate overlying a Newtonian viscoelastic half-space. We have got some tremendously interesting results that we expect will generate several eye-opening publications on tectonic motions. Our results show that the next step is to do modelling, and/or develop new modelling tools, that can take account of three-dimensional structural heterogeneity and more complex rheologies. A finite element approach is one, but not the only candidate. The objective would be to develop a powerful tool for modelling the deformation of the Earth's crust and outer layers on a regional scale, and to explain and predict the structure and behaviour (including the recurrence of great earthquakes and volcanic eruptions). I am very interested in working with a numerical person on this project. I myself am a geophysicist, not a mathematician, so I am looking for a colleague who might provide the latter expertise. The Royal Society Dorothy Hodgkin scholarships have come to my notice, and my department and project certainly would fit the requirement of "departments/disciplines where (women) are currently under-represented at the post-doctoral level". Is there anyone out there who is interested? A nice possibility would be for a person to be jointly attached to my department and the maths or physics department here - then it would be interdisciplinary too. Durham is a wonderful old historic town with a collegiate university. You'd love it here. Gillian R. Foulger ------------------------------ From: Baltzer Science Publishers Date: Tue, 18 Apr 1995 14:45:41 +0200 Subject: Contents, Advances in Computational Mathematics CONTENTS: Advances in Computational Mathematics, Volume 3, No. III, 1995, ISSN 1019 7168 Editors-in-Chief: John C. Mason & Charles A. Micchelli Advances in Computational Mathematics is an interdisciplinary journal of high quality, driven by the computational revolution and emphasising innovation, application and practicality. This journal is of interest to a wide audience of mathematicians, scientists and engineers concerned with the development of mathematical principles and practical issues in computational mathematics. Volume 3, No. III, 1995 pp. 171-196: C.T.H. Baker, C.A.H. Paul and D.R. Wille, Issues in the numerical solution of evolutionary delay differential equations pp. 197-218: S. Noelle, Convergence of higher order finite volume schemes on irregular grids pp. 219-238: T. Sauer, Computational aspects of multivariate polynomial interpolation pp. 239-250: M. Gasca and J.M. Pena, On the characterization of almost strictly totally positive matrices pp. 251-264: R. Schaback, Error estimates and condition numbers for radial basis function interpolation pp. 265-290: J.W. Jones and B.D. Welfert, Zero-free regions for a rational function with applications pp. 291-308: K. Strom, B-splines with homogenized knots Submissions of articles and proposals for special issues are to be addressed to the Editors-in-Chief: John C. Mason School of Computing and Mathematics, University of Huddersfield, Queensgate, Hudersfield, HD1 3DH, United Kingdom E-mail: j.c.mason@hud.ac.uk or Charles A. Micchelli Mathematical Sciences Department IBM Research Center P.O. Box 218, Yorktown Heights, NY 10598, USA E-mail: cam@yktvmz.bitnet Requests for FREE SPECIMEN copies and orders for Advances in Computational Mathematics are to be sent to: E-mail: publish@baltzer.nl ------------------------------ From: Ake Bjorck Date: Wed, 19 Apr 95 10:50:50 +0200 Subject: Contents, BIT Numerical Mathematics CONTENTS BIT Numerical Mathematics ISSN 0006-3835 Volume 35, No. 2 (1995) Convergence of multistep discretizations of DAEs C. Ar\'evalo and G. S\"oderlind, pp. 143--168 Look-ahaed in Bi-CGSTAB and other product-type methods for linear systems C. Brezinski and M. Redivo Zaglia, pp. 169--201 On fifth order Runge-Kutta methods J. C. Butcher, pp. 202--209 A framework for advancing front techniques of finite element mesh generation S. Farestam and R. B. Simpson, pp. 210--232 On the Cholesky factorization of the Gram matrix of locally supported functions T. N. T. Goodman, C. A. Micchelli, G. Rodriguez and S. Seatzu, pp. 233--257 Composition methods in the presence of small parameters R. McLachlan, pp. 258--268 Lack of dissipativity is not symplecticness A. Portillo and J. M. Sanz-Serna, pp 269--276 On the uniform convergence of Cauchy principal values of quasi-interpolating splines P. Rabinowitz and E. Santi, pp. 277--290 SCIENTIFIC NOTES A note on the convergence of discretized dynamic iteration M. Bj\o rhus, pp. 291--296 Contributions in LaTeX are preferred. Information and style files are avilable from the Editor or from the WWW server for BIT at: http://math.liu.se/BIT/ {\AA}ke Bj\"orck Department of Mathematics Link\"oping University S-581 83 Link\"oping, Sweden email: akbjo@math.liu.se FAX: +46-13 100 746 ------------------------------ From: SIAM Date: Fri, 21 Apr 95 10:43:02 EST Subject: Contents, SIAM Scientific Computing SIAM Journal on Scientific Computing JULY 1995, Volume 16, Number 4 CONTENTS A Front Tracking Method for Compressible Flames in One Dimension James Hilditch and Phillip Colella Multidomain Collocation Methods for the Stream Function Formulation of the Navier-Stokes Equations Timothy N. Phillips and Alaeddin Malek A Fixed Domain Method for Injection Governed by the Stokes Equations L. L. Stell and S. F. Shen Adaptive Mesh Refinement for Wave Propagation in Nonlinear Solids John A. Trangenstein An Adaptive Algebraic Multigrid for Reactor Criticality Calculations Leonid Yu. Zaslavsky A Space-Time Multigrid Method for Parabolic Partial Differential Equations G. Horton and S. Vandewalle Multipole Translation Theory for the Three-Dimensional Laplace and Helmholtz Equations Michael A. Epton and Benjamin Dembart A Family of Numerical Schemes for the Computation of Elastic Waves Alain Sei An Iterative Method for Nonsymmetric Systems with Multiple Right-Hand Sides V. Simoncini and E. Gallopoulos Efficient Sparse Cholesky Factorization on a Massively Parallel SIMD Computer Fredrik Manne and Hjalmtyr Hafsteinsson A Note on Preconditioned Block Toeplitz Matrices Xiao-Qing Jin The Instability of Parallel Prefix Matrix Multiplication Roy Mathias Rational Multiple Criterion Approximation and Rational Complex Approximation by Differential Correction-Type Algorithms G. Cortelazzo, G. A. Mian, and M. Morandini Locally Corrected Multidimensional Quadrature Rules for Singular Functions John Strain ------------------------------ From: SIAM Date: Fri, 21 Apr 95 10:45:09 EST Subject: Contents, SIAM Numerical Analysis SIAM Journal on Numerical Analysis JUNE 1995, Volume 32, Number 3 CONTENTS Convergence of the Finite Volume Method for Multidimensional Conservation Laws B. Cockburn, F. Coquel, and P. G. Lefloch Adaptive Finite Element Methods for Parabolic Problems II: Optimal Error Estimates in L L2 and L L Kenneth Eriksson and Claes Johnson A Numerical Study of a Rotationally Degenerate Hyperbolic System. Part II. The Cauchy Problem Heinrich Freistuhler and E. Bruce Pitman Convergence of the Variable-Elliptic-Vortex Method for Euler Equations Zhen-Huan Teng, Lung-An Ying, and Pingwen Zhang Numerical Viscosity and Convergence of Finite Volume Methods for Conservation Laws with Boundary Conditions S. Benharbit, A. Chalabi, and J. P. Vila Implicit-Explicit Methods for Time-Dependent Partial Differential Equations Uri M. Ascher, Steven J. Ruuth, and Brian T. R. Wetton A Comparison of Convergence Rates for Godunov's Method and Glimm's Method in Resonant Nonlinear Systems of Conservation Laws L. Lin, J. B. Temple, and J. Wang Suppression of Oscillations in Godunov's Method for a Resonant Non- Strictly Hyperbolic System Lin Longwei, Blake Temple, and Wang Jinghua Mixed Finite Element Methods for Nonlinear Second-Order Elliptic Problems Eun-Jae Park Convergence of a Crystalline Algorithm for the Motion of a Simple Closed Convex Curve by Weighted Curvature Pedro Martins Girao On Algorithms for Nonconvex Optimization in the Calculus of Variations Ling Ma and Noel J. Walkington Nystrom's Method and Iterative Solvers for the Solution of the Double-Layer Potential Equation Over Polyhedral Boundaries A. Rathsfeld Numerical Calculation of Center Manifolds for a Class of Infinite- Dimensional Systems with Applications Ma Fuming Two-Dimensional Quadrature for Functions with a Point Singularity on a Triangular Region Yajun Yang and Kendall E. Atkinson ------------------------------ End of NA Digest ************************** -------