Subject: NA Digest, V. 97, # 04 NA Digest Sunday, January 26, 1997 Volume 97 : Issue 04 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Kermit Sigmon Special Issue Honoring Stieltjes Mailing List for the Teaching of Numerical Analysis New Book on A Posteriori Error Estimation and Adaptive Grid Refinement New Book, Foundations of Computational Mathematics Re: A Problem Involving Positive Matrices New Codes for Stiff Two-Point Boundary Value Problems Optimization Code Available Change in ICASE Phone Numbers NSF Summer Research Program for Undergraduates Conference on Preconditioned Iterative Solution Methods Summer School on Nonlinear Systems of Equations SIAM Southeastern-Atlantic Section BLAS Technical Forum Travel Grants for ICHMT Symposium in Turkey Lectureships at the University of Durham Postdoctoral Position at Massey University Faculty Positions at the University of Puerto Rico Postdoctoral Position at University of Bergen Contents, BIT Contents, SIAM Scientific Computing 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: Steve Leon Date: Fri, 24 Jan 1997 12:51:10 -0500 (EST) Subject: Kermit Sigmon Kermit Sigmon, 1936-1997 Kermit Sigmon succumbed to liver cancer on January 14, 1997, after being ill only one month. He is survived by two sisters, his wife Ruth, daughter Kristina, and two grandchildren. His many friends, colleagues and students will greatly miss his cheerful and congenial company, generous spirit, clearheaded leadership and outstanding teaching. He received his Ph.D. from the University of Florida in 1966, working in topological algebra under the direction of Alexander Doniphan Wallace. He joined the faculty at Florida and remained there except for several summer consulting positions and sabbatical years elsewhere. Kermit directed three Ph.D. theses and published 14 papers on topics in functional equations and Alexander cohomology. Over time his interests shifted and he wrote several papers in numerical linear algebra as well as a well known handbook, MATLAB Primer, published by CRC Press. He was an Associate Editor for Aequationes Mathematicae (1974-1980) and SIMAX (1989-present). He held a variety of offices in the Florida Section of the MAA and also supported the training of math teachers. He was a demanding but very popular teacher at Florida and won several teaching awards. Most recently he was selected in 1995 by the Department of Mathematics for Teaching Incentive Program award, which is given for teaching excellence and provides a substantial salary increase. He also won a University of Florida Teaching Award for the 95/96 academic year. Kermit was one of the leaders of the ATLAST Project. He served on the original planning team for the ATLAST workshops. During the period 1992-95 he served as presenter for three workshops and did an outstanding job. ATLAST is an NSF-funded project which began in 1992 and has provided 16 workshops around the U.S. to date; the purpose of these is to encourage and facilitate the use of software in teaching linear algebra and to assist college faculty to update their linear algebra courses. Throughout his career Kermit has made many invaluable contributions to his department, including serving as Associate Chair, Undergraduate Coordinator, Faculty Mentor for minority students, and providing academic advising for hundreds of students. His work on curriculum development has been substantial. He has even written software to facilitate the department's record-keeping. Kermit was an avid biker and tennis player, and his enthusiasm for biking is probably what got him on the Metropolitan Planning Commission for Alachua County and kept him there for 20 years. He also served on the University's Transportation Committee, which developed a Master Plan for cooperation between the university, city and county to expand local bus service and make Gainesville a more biker-friendly city. These contributions led to a number of recognitions, including the Gainesille City Commission proclaiming August 5, 1985 to be "Kermit Sigmon Day". Contributions may be made to the American Cancer Society or the the League of American Bicyclists, 190 W. Ostend St., Suite 120, Baltimore, MD 21230, and Ruth Sigmon can be contacted c/o Dept. of Math, Univ. of Florida, Gainesville, FL 32611-8105. ------------------------------ From: Jean-Baptiste Hiriart-Urruty Date: Wed, 22 Jan 1997 13:52:23 +0100 (MET) Subject: Special Issue Honoring Stieltjes Publication of a special issue of the journal "Annales de la Faculte des Sciences de Toulouse", on December 1996, entitled "100 years after Th.- J. STIELTJES", 205 pages. Contents : C.Berg, Moment problems and polynomial approximation J.-P.Kahane, Sur trois notes de Stieltjes relatives aux series de Dirichlet J.Korevaar, Electrostatic fields due to distributions of electrons Th.W.Korner,On the representation of functions by trigonometric series H.Stahl, Diagonal Pade approximants to hyperelliptic functions W. Van Assche, Compact Jacobi matrices : from Stieltjes to Krein and M(a,b) Price : 175 FF, plus sending (20 FF in Europe, 30 FF elsewhere) Address to place orders : Mrs J.BROCKERS, Secretary of the Annales de la Faculte des Sciences, Universite Paul sabatier, Department of mathematics, 118, route de Narbonne, 31062 TOULOUSE Cedex 4, France. Jean-Baptiste HIRIART-URRUTY U.F.R. Math=E9matiques, Informatique, Gestion Universit=E9 Paul Sabatier (Toulouse 3) 118, route de Narbonne 31062 TOULOUSE cedex, France ------------------------------ From: Ron Buckmire Date: Fri, 24 Jan 1997 18:20:14 -0800 Subject: Mailing List for the Teaching of Numerical Analysis Hello I'm interested in online resources to assist in the teaching of (undergraduate) numerical analysis. Does anyone know of ay mailing lists where such a discussion could occur? If people do NOT know of one, would they be interested in joining one? I have the capability on my machine, abacus.oxy.edu, to host a mailing list and would be delighted to setup one, called NA-TEACH or something. If I get between 5 and ten responses to this message I will interpret that as a gauge that there IS enough interest to maintain a mailing list on the teaching of numerical analysis. Thanks... Ron RON BUCKMIRE http://www.math.oxy.edu/~ron/ Asst. Prof., Math Dept., Occidental College, 1600 Campus Road, L.A., CA 90041 ron@abacus.oxy.edu||+1 213 259 2536 (v)||+1 213 259 2958 (f) ------------------------------ From: Ruediger Verfuerth Date: Wed, 22 Jan 1997 11:32:37 +0100 Subject: New Book on A Posteriori Error Estimation and Adaptive Grid Refinement A review of a posteriori error estimation and adaptive mesh-refinement techniques Ruediger Verfuerth Ruhr-Universitaet Bochum, Germany Wiley-Teubner, 1996 ISBN 0-471-96795-5 (Wiley) ISBN 3-519-02605-8 (Teubner) This book gives an introduction to a posteriori error estimation and adaptive mesh-refinement techniques for elliptic pdes. In Chapter I, various a posteriori error estimators (residual, local Dirichlet and Neumann problems, hierarchical bases, averaging) are presented and compared for the Laplace equation as a model problem. Chapter II gives an abstract framework for (non-) linear problems which is applied in Chapter III to quasi-linear elliptic pdes of 2nd order, the stationary Navier-Stokes equations, elasticity, the biharmonic equation and eigenvalue problems. Chapter IV gives an introduction to adaptive mesh-refinement techniques and the relevant data structures. R. Verfuerth Ruhr-Universitaet Bochum Fakultaet fuer Mathematik D-44780 Bochum Tel. +234 - 700 3247 Fax. +234 - 709 4103 ------------------------------ From: Martin Peters Date: Thu, 23 Jan 1997 10:59:31 +0100 Subject: New Book, Foundations of Computational Mathematics New Book Information: Foundations of Computational Mathematics Selected Papers of a Conference held at IMPA in Rio de Janeiro, January 1997 F.Cucker, University of Hong Kong, M.Shub, T.J.Watson Research Centre, Yorktown Heights, NY, USA (Eds.) Springer-Verlag 1997. Softcover DM 128,- |S 9344,40 sFr 113,- ISBN 3-540-61647-0 This book contains articles corresponding to some of the talks delivered at the Foundations of Computational Mathematics (FoCM) conference at IMPA in Rio de Janeiro in January 1997. FoCM brings together a novel constellation of subjects in which the computational process itself and the foundational mathematical underpinnings of algorithms are the objects of study. The conference was organized around nine workshops: systems of algebraic equations and computational algebraic geometry, homotopy methods and real machines, information based complexity, numerical linear algebra, approximation and PDE's, optimization, differential equations and dynamical systems, relations to computer science and vision and related computational tools. The book gives the reader an idea of the state of the art in this emerging discipline. Contact Person at Springer-Verlag: Martin Peters Mathematics Editor Springer-Verlag Tiergartenstr. 17 69121 Heidelberg, Germany e-mail: peters springer.de tel.: +49 6221 487 409 fax: +49 6221 487 355 http://www.springer.de/math/peters.html ------------------------------ From: Michael Todd Date: Thu, 23 Jan 1997 09:26:02 -0500 (EST) Subject: Re: A Problem Involving Positive Matrices In NA-digest v96n47, December 16, 1996, Avi Vardi asked about the existence and uniqueness of a solution $x$ to $e^T x = 0$, $c(x) - B(x)x = 0$, where $e$ is the vector of ones, $c(x)$ is a vector and $B(x)$ a symmetric matrix depending (discontinuously) on $x$ and on a positive matrix $A$. It turns out that a reformulation of this problem allows an easy solution. Indeed, one can show that \[ [c(x) - B(x)x]_i = \sum_h [a_{hi}(x_i - x_h + 1)_+ - a_{ih}(x_h - x_i + 1)_+], \] where $\lambda_+$ denotes $\max\{\lambda, 0\}$, which shows that $c(x) - B(x)x$ is indeed continuous, and in fact is the gradient of the function \[ f(x) := \sum{h,i} a_{hi}(x_i - x_h + 1)_+^2. \] The existence and uniqueness now easily follow since $f$ is strictly convex on $X := \{x: e^T x = 0\}$ and $\{x \in X: f(x) \leq f(0)\}$ is compact. The problem arises in ranking teams or players based on their records. -- Mike Todd ------------------------------ From: Jeff Cash Date: Thu, 23 Jan 97 10:57:50 GMT Subject: New Codes for Stiff Two-Point Boundary Value Problems This is to announce two new codes, ACDC.f and COLMOD.f, for the solution of singularly perturbed two-point boundary value problems. These are extensions of the NETLIB codes TWPBVP.f and COLNEW.f, and are designed to solve stiff boundary value problems in an efficient way. The code ACDC.f is a deferred correction code based on Lobatto Runge-Kutta formulae while the code COLMOD.f is a modification of the collocation code COLNEW. Both codes are set in an automatic continuation framework to allow extremely stiff problems to be solved efficiently. The codes can be accessed from NETLIB under the directory ode. Extensive results comparing these new codes with some existing NETLIB codes, together with double precision versions of ACDC.f and COLMOD.f are on the Imperial College web page. This can be accessed at http://www.ma.ic.ac.uk/~jcash/BVP_software/readme.html Any comments will be gratefully received by j.cash@ma.ic.ac.uk r.wright@ma.ic.ac.uk ------------------------------ From: Jerry Taylor Date: Thu, 23 Jan 97 10:03:58 MST Subject: Optimization Code Available The optimization code conmax.f is now available in netlib/opt/ Abstract A Fortran program is now available to solve the following general nonlinearly constrained optimization problem: Choose x1,...,xn to minimize w subject to abs(fi - gi(x1,...,xn)) .LE. w, 1 .LE. i .LE. m1 gi(x1,...,xn) .LE. w, m1 + 1 .LE. i .LE. m2 gi(x1,...,xn) .LE. 0, m2 + 1 .LE. i .LE. m3 where m1, m2, m3 are integers with 0 .LE. m1 .LE. m2 .LE. m3, the fi are given real numbers, and the gi are given smooth functions. Constraints of the form gi(x1,...,xn) = 0 can also be handled without problem. Each iteration of our algorithm involves approximately solving a certain nonlinear system of first order ordinary differential equations to get a search direction for a line search and using a Newton-like approach to correct back into the feasible region when necessary. Our experience to date has been that the program is more robust than any of the library routines we have tried, although it generally requires more computer time. We have found this program to be an extremely useful tool in diverse areas, including polymer rheology, computer vision, and computation of convexity-preserving rational splines. The package contains an SLP routine as a backup, as well as user-callable subroutines for Muller's method real root finding, line search, free-variable LP, and least- distance QP. The program and its extensive user's guide can be obtained by sending the message send conmax from opt to netlib@ornl.gov. For a discussion of the algorithm, program, and experimental results, please see "An ODE-based approach to nonlinearly constrained minimax problems," E. H. Kaufman, Jr., D. J. Leeming, and G. D. Taylor, Numerical Algorithms 9 (1995), 25-37. The authors gratefully acknowledge the assistance of Central Michigan University, University of Victoria (Canada), and Colorado State University. ------------------------------ From: Alex Pothen Date: Sun, 26 Jan 1997 11:54:56 -0500 (EST) Subject: Change in ICASE Phone Numbers On Feb 1, the area codes in the Hampton Roads region will change from 804 to 757. Hence our new coordinates are: Alex Pothen: (757) 864-7497 (office) (757) 683-4414 (office) (757) 864-2173 (secretary) (757) 683-3915 (secretary) (757) 864-6134 (FAX) (757) 683-4900 (FAX) pothen@icase.edu pothen@cs.odu.edu David Keyes: (757) 864-6873 (757) 683-4928 (757) 864-2173 (secretary) (757) 683-3915 (secretary) (757) 864-6134 (FAX) (757) 683-4900 (FAX) keyes@icase.edu keyes@cs.odu.edu ICASE Department of Computer Science MS 403, 6 North Dryden St. Education Building NASA LaRC Old Dominion University Hampton, VA 23681-0001 Norfolk, VA 23529-0162 Best wishes. --Alex Pothen ------------------------------ From: Daniel Okunbor Date: Wed, 22 Jan 1997 22:31:14 -0600 (CST) Subject: NSF Summer Research Program for Undergraduates RESEARCH EXPERIENCES FOR UNDERGRADUATES sponsored by National Science Foundation and Department of Computer Science/Intelligent Systems Center University of Missouri-Rolla Rolla, Missouri June 2 - July 25, 1997 EXCELLENT OPPORTUNITY * for undergraduate juniors who have limited or no opportunities for research, to learn how to do research and to be involved in a parallel numerical linear algebra research project. * to learn state-of-the-art numerical algorithms in linear algebra. * to learn new programming paradigms for use in parallel processing. * to have access to an undergraduate research laboratory and computer facilities to do parallel processing. * to present a research paper at a special parallel processing conference specifically designed for undergraduates. * to earn up to six credit hours for undergraduate research. Stipend of $2000, room, board and travel allowance for each participant. DEADLINE FOR APPLICATION: April 1, 1997 For further information contact: Dr. Daniel Okunbor NSF Undergraduate Research Program Department of Computer Science University of Missouri-Rolla Rolla, MO 65409-0350 Phone: (573) 341-4491, FAX: (573) 341-4501 NSFNET: okunbor@cs.umr.edu ------------------------------ From: Maya Neytcheva Date: Thu, 23 Jan 1997 08:41:09 +0100 (MET) Subject: Conference on Preconditioned Iterative Solution Methods CONFERENCE on Preconditioned Iterative Solution Methods for Large Scale Problems in Scientific Computations PRISM'97 May 27-29, 1997, University of Nijmegen, The Netherlands PROGRAM COMMITTEE: Owe Axelsson, Nijmegen, The Netherlands Robert Beauwens, Brussels, Belgium Tony F. Chan, Los Angeles, California Richard E. Ewing, College Station, Texas Wolfgang Hackbusch, Kiel, Germany Piet Hemker, Amsterdam, The Netherlands Rik Huiskes, Nijmegen, The Netherlands Yuri A. Kuznetsov, Moscow, Russia Ulrich Langer, Linz, Austria Jean-Francois Maitre, Lyon, France Frank Natterer, Munster, Germany Panayot S. Vassilevski, Sofia, Bulgaria Harry Yserentant, Tubingen, Germany SCOPE: The purpose of the conference is to provide a forum for the presentation and the discussion of recent progress in the analysis and implementation of of preconditioned iterative solution methods. This includes their implementation on parallel computer architectures. A stress will be put on applications in various fields where a strong demand of efficient solution of large scale problems exists. TOPICS COVERED INCLUDE preconditioned iterative solution methods for - second and fourth order elliptic scalar equations and systems of equations - mixed variable variational problems - nonselfadjoint problems and indefinite matrix problems - inner-outer iteration methods - parallel implementations, efficiency measures, scalability - robust implementations, i.e. convergence uniform with respect to meshsize parameter and singular perturbation parameters - applications for Navier's equations and Stokes problem - applications for nonlinear problems, such as electromagnetic field, plastic flow, Navier-Stokes, and Miscible displacement problems - Biomechanical applications; Helmholtz equation and applications in Computer Tomography. CALL FOR PAPERS: Papers intended for presentation at the conference should be submitted to Owe Axelsson. The papers accepted for presentation at the conference are planned to appear in a proceedings volume ready for the conference. The intention is to have the whole proceedings volume refereed by some international refereeing journal. Some selected papers of original content will be considered for publication in a special issue of Numerical Linear Algebra with Applications. All such papers will be refereed according to the editorial policy of the journal. Papers accepted for the journal are planned to appear in an issue about six months after the conference. CALENDAR: Deadline for submission of full papers: April 2, 1997. Referee reports and notification of acceptance: May 2, 1997. REGISTRATION: Before March 15, 1997 f. 450. At the registration desk f. 600 (currently \$ 350). Fee includes a copy of the conference proceedings, three lunches and coffee and tea during breaks. FURTHER INFORMATION CAN BE OBTAINED FROM: PRISM'97 attn. O. Axelsson or M. Neytcheva Department of Mathematics Toernooiveld 1, NL-6525 ED Nijmegen, The Netherlands e-mail: summer97@sci.kun.nl fax: +31 (0)24 3652140 http://www-math.sci.kun.nl/math/summer97 ------------------------------ From: Florian Jarre Date: Thu, 23 Jan 1997 19:10:49 GMT Subject: Summer School on Nonlinear Systems of Equations Summer School on NONLINEAR SYSTEMS OF EQUATIONS As part of the "Harburger Sommerschulen zur numerischen Software" this School is concerned with the solution of systems of nonlinear equations and of overdetermined (nearly consistent) nonlinear systems. Special emphasis is put on high-dimensional systems as arising from modelling of complex systems or from the discretization of of differential and integral equations. The basic solution methods and their implementations will be discussed, and also discretization effects and the bifurcation and stability of the solutions. Aims: The seminar is aimed towards young scientists from industry and universities. With the intention to motivate and support the use of pubic domain software in in practical applications, the seminar will also focus on software demonstrations. Speakers: Peter Deuflhard, FU Berlin, Eusebius Doedel, Concordia University, Montreal Carl T. Kelley, North Carolina State, Raleigh Florian Potra, University of Iowa, Iowa City Klaus Schittkowski, Universitaet Bayreuth Outline: There will be one class with about 24 participants, the talks will be be given in English or in German. In the mornings there will be two lectures with discussions and problem sessions, in the afternoons software packages will be introduced and the participants will apply the packages to sample problems. A room with 24 workstatons will be available for the sofware applications. Date (of the School): 17.-21. Maerz 1997 Place: Technische Universitaet Hamburg-Harburg, 21073 Hamburg Registration by www: http://www.tu-harburg.de/mat/sommer or by e-mail Marcus Dietz dietz@math.uni-hamburg.de ------------------------------ From: Mei-Qin Chen Date: Fri, 24 Jan 1997 22:55:06 -0400 (EDT) Subject: SIAM Southeastern-Atlantic Section The Second Announcement and Call for Papers The 21st Annual Meeting of SIAM Southeastern-Atlantic Section April 4-5, 1997 North Carolina State University, Raleigh, North Carolina The 21st annual SIAM-SEAS meeting will be held in Harrelson Hall on the campus of North Carolina State University on Friday, April 4 and Saturday, April 5, 1997. The organizing committee consists of H. T. Banks (co-chair), Mei-Qin Chen, Jim Epperson (minisymposium coordinator), Pierre Gremaud, Tim Kelley (co-chair), Jeff Scroggs, and Hien Tran (student paper coordinator). We're looking forward to an amazing meeting. SCIENTIFIC PROGRAM AND CALL FOR PAPERS Invited Speakers: John E. Dennis, Jr., Rice University "Optimization Using Surrogate Objectives" Cass T. Miller, University of North Carolina "Recent Advances in Object-Oriented Scientific Computing" Douglas N. Arnold, Penn State University Mini-symposia: Parallel Computing "Architecture" - Ed Davis, NCSU "Education" - Mladen Vouk, NCSU "Min Exec" - Bob Funderlic (organizer), NCSU "Applications" - Bob Plemmons, WFU If you would like to organize a mini-symposium, please send your proposal to Jim Epperson at epperson@math.uah.edu by February 15. Contributed Papers: Several sessions of 20 minute presentations of contributed papers will be held. Papers in all areas of applied mathematics are welcome. The deadline for contributed abstracts is Feb 15. Please use the SIAM (available from SIAM's web page or the web page for the meeting) abstract form to submit your 75 word abstract for contributed talks. Please also include a short list of keywords with your abstract (see question 7 on the electronic abstract form). You can submit abstracts electronically to crsc@math.ncsu.edu. Please put SIAM-SEAS 97 in the subject line. You may also send a hard copy of your completed form to SIAM-SEAS 97 Center for Research in Scientific Computation North Carolina State University, Box 8205 Raleigh, NC 27695-8205 voice: (919) 515-5289 fax: (919) 515-1636 Student Papers: Sessions of 20 minute presentations of student papers will be held, and cash prizes will be given for the best student papers. Students who desire to contribute a paper to one of these sessions should follow the directions for submitting an abstract above, with a clear indication that this is a student paper, and also send the abstract to Hien Tran at tran@control.math.ncsu.edu, the student paper coordinator. Details on travel and hotel information can be obtained on the web at http://www4.ncsu.edu/eos/users/c/ctkelley/www/siam_seas.html. Please do look at this web page as you plan your travel. ------------------------------ From: Jack Dongarra Date: Sat, 25 Jan 1997 09:47:40 -0500 Subject: BLAS Technical Forum BLAS TECHNICAL FORUM, February 27-28, 1997, Dallas, TX We are planning a BLAS Technical Forum meeting on February 27-28. The meeting will be hosted by Hsin-Ying Lin of HP/Convex and the meeting will be held at the Clarion Hotel in Dallas, TX (a couple of miles from HP): Clarion Hotel 1981 North Central Expressway Richardson, TX 75080 (800) 285-3434 The Forum has been established to consider expanding the Basic Linear Algebra Subprograms (BLAS) in a number of directions in the light of modern software, language, and hardware developments. The first meeting of the Forum was held in Nashville on February 19-20, 1996 and the previous meeting was in Eagan, MN on November 7-8, 1996. Working groups have been established to consider the overall functionality, possible extensions, and a lightweight interface for the BLAS, as well as the short term goals of the forum. Other subgroups have also been established, either to advise the current working groups or as placeholders for future working groups on parallel processing issues, sparse operations, and language binding issues. We strongly urge and encourage attendance at the meeting so that we can make tangible progress towards much needed standards. Wide input is needed to help ensure that emerging proposals are useful and acceptable to the community. It is appreciated that it is not easy for everyone to attend the meetings of the Forum, but we would nevertheless welcome your input since we wish the discussion to be as open as possible, and the results to reflect consensus from the community at large. Please send us items you would like to see on the agenda or that you would like to discuss. We will plan to start the meeting with lunch at 12:00 pm on Thursday, February 27th and end by mid-afternoon on Friday, February 28th. Lunch is provided on site both days. Jack Dongarra, Sven Hammarling, and Hsin-Ying Lin ------------------------------ From: Graham de Vahl Davis Date: Sun, 26 Jan 1997 08:19:08 +1000 (EET) Subject: Travel Grants for ICHMT Symposium in Turkey TRAVEL GRANTS FOR CHT-97 We are pleased to advise that the National Science Foundation has given funds to permit a small number of travel grants to be made to participants in the ICHMT symposium CHT-97: Advances in Computational Heat Transfer, Cesme, Turkey, May 26-30, 1997. Full information about the Symposium is available at the web site http://www.metu.edu.tr/~wwwichmt. The grants, up to a maximum of $1,000 per person, may be made to applicants who satisfy the following criteria: - They are authors or co-authors of a paper which has been accepted for presentation at CHT-97; - They are junior faculty members, early in their research careers, or, in special cases, are PhD students nearing completion, who in either case do not have access to travel funds; - They are US citizens or are working in the US on a Green Card. To enable potential recipients who may not already have done so to submit abstracts to CHT-97, the closing date for such persons has been extended to 28 February, 1997. Submission of Abstracts and Papers Papers will be selected for presentation on the basis of a 1000 word (2-3 page) extended abstract. They should not have been previously published. A bound volume of abstracts will be provided to participants at the meeting. Review copies of the full papers will be due on the opening day of the Symposium. Subject to review, all presented papers will be published in the Proceedings by Begell House Inc. Abstracts may be submitted by fax or email to Professor de Vahl Davis. Applications for Travel Support Applications for travel support should be sent to Professor Pepper. They should contain a brief CV and be accompanied by a letter of support from the Department Chair or Faculty Advisor as appropriate. The closing date for applications is 28 February, 1997. Professor Darrell Pepper Professor Graham de Vahl Davis Dept. of Mechanical Engineering School of Mech. & Manuf. Eng. University of Nevada, Las Vegas University of New South Wales Las Vegas, NV 89154-4027 Sydney, NSW, Australia 2052 Tel: +1 702 895 1056 Tel: +61 2 9385 4099 Fax: +1 702 895 3936 Fax: +61 2 9663 1222 pepperu @ nye.nscee.edu g.devahldavis @ unsw.edu.au ------------------------------ From: John Coleman Date: Thu, 23 Jan 1997 13:13:52 +0000 (GMT) Subject: Lectureships at the University of Durham UNIVERSITY OF DURHAM Department of Mathematical Sciences Temporary Lectureships in Mathematical Sciences Applications are invited for two or more two-year Temporary Lectureships in Mathematical Sciences, to be held from 1st October 1997 or as soon as possible after that date. The Department of Mathematical Sciences has active research groups in Pure Mathematics, Mathematical Physics, Numerical Analysis and Statistics, and is committed to excellence in both research and teaching. Pure Mathematics and Applied Mathematics (Mathematical Physics and Numerical Analysis) were each graded 5 in the recent Research Assessment Exercise. It is expected that the appointments will be made in the areas of Pure and Applied Mathematics, with at least one in each area. Salaries are likely to be on the Lecturer A scale ( 15,154 - 19,848 pounds p.a.). Further particulars may be obtained from the Director of Personnel, University of Durham, Old Shire Hall, Durham DH1 3HP, to whom applications (three copies, including curriculum vitae and the names of three referees) should be sent no Prospective candidates may contact the current Chairman, Professor E. Corrigan (01913742372) or one of Dr.J.P.Coleman (01913742383), Professor A.J. Scholl (01913742355), for further information. Information about the Department may be found on our www page www - http: //fourier.dur.ac.uk:8000 John P. Coleman, Telephone: Dept. of Mathematical Sciences, (+44) 0191 374 2383 (direct line) University of Durham, (+44) 0191 374 2349 (department) South Road, Fax: (+44) 0191 374 7388 Durham DH1 3LE England. John.Coleman@durham.ac.uk ------------------------------ From: Robert McLachlan Date: Fri, 24 Jan 1997 17:24:20 +1200 Subject: Postdoctoral Position at Massey University Mathematics Department, Massey University, Palmerston North, New Zealand THE PROJECT "Unconventional methods and structures in numerical differential equations" The project is to develop and explore existing and new methods for systems with special properties such as symmetries, integrals, or preservation of symplectic or volume structures, methods which offer improved long-time performance and which shed light on the foundations of numerical analysis. THE POSITION The project is funded by a research grant from the Marden Fund of New Zealand. The appointment is to commence as soon as possible and will be offered for a term of up to three years. To apply you should have completed, or expect to soon complete, a Ph.D. in mathematics or a related discipline, and have a good record of independent publication in your field. A background in numerical differential equations, dynamical systems, differential geometry or complexity theory would be desirable: the project can flex to suit your experience. For further information and application details, please see http://smis-www.massey.ac.nz/maths/jobs/marsden.html -- Robert McLachlan ------------------------------ From: Dorothy Bollman Date: Sat, 25 Jan 1997 12:29:19 -0500 (EST) Subject: Faculty Positions at the University of Puerto Rico FACULTY POSITIONS AT THE UNIVERSITY OF PUERTO RICO AT MAYAGUEZ The Mathematics Department of the University of Puerto Rico at Mayaguez anticipates two open temporary (or possibly tenure-track) positions for the academic year 1997-98. One is for an applied/computational statistian. The other is for a computational mathematician with some background in computer science, preferably computer architecture. Ph.D. prefered. Knowledge of Spanish is a plus, although not required. Interested persons may send a CV and have three letters of reference sent to: Dorothy Bollman, Chair Department of Mathematics University of Puerto Rico Mayaguez, PR 00681-5000 ------------------------------ From: Bengt Aspvall Date: Sat, 25 Jan 97 20:55:07 +0100 Subject: Postdoctoral Position at University of Bergen Postdoctoral Position at University of Bergen, Norway. The Norwegian Research Council has awarded a four-year grant for the project "Analysis and Implementation of Parallel Algorithms for Scientific Computing." The program will, among other activities, have a sequence of Postdoctoral positions. We invite applications for a one-year Postdoctoral appointment effectively immediately. For more information, please, see http://www.parallab.uib.no/projects/strategic/ or contact one of the principal investigators, Bengt.Aspvall@ii.uib.no, Petter.Bjorstad@ii.uib.no, and Hans.Munthe-Kaas@ii.uib.no, or write to Strategic Project in Scientific Computing Parallab, University of Bergen N-5020 Bergen, Norway Phone: +47 - 55 58 41 70, Fax: +47 - 55 58 41 99 ------------------------------ From: Ake Bjorck Date: Wed, 22 Jan 1997 10:06:26 +0100 (MET) Subject: Contents, BIT CONTENTS BIT Volume 37, No. (March 1997) ISSN 0006-3835 On the discretization of differential and Volterra integral equations with variable delay H. Brunner, pp. 1--12 Linear M-estimation with bounded variables O. Edlund, pp. 13--23 Time-stepping and preserving orthonormality D. J. Higham, pp. 24--36 Dissipativity of Runge-Kutta methods in Hilbert spaces A. T. Hill, pp. 37--42 Rooted tree analysis of the order conditions of ROW-type scheme for stochastic differential equations Y. Komori, T. Mitsui, and H. Sugiura, pp. 43--66 Relative perturbation bounds for the unitary polar factor R.-C. Li, pp. 67--75 Algorithms for spline wavelet packets on an interval E. Quak and N. Weyrich, pp. 76--95 Computing projections with LSQR M. A. Saunders, pp. 96--104 Constrained approximation by splines with free knots T. Sch\"utze and H. Schwetlick, pp. 105--137 A data modeling abstraction for describing triangular mesh algorithms R. B. Simpson, pp. 138--163 Semi-implicit Runge-Kutta schemes for the Navier-Stokes equations E. Sterner, pp. 164--178 On optimal backward perturbation bounds for the linear least squares problem J.-G. Sun, pp. 179--188 Identies for trigonometric B-splines with an application to curve design G. Walz, pp. 189--201 Computing the optimal commuting matrix pairs H. Zha and Z. Zhang, pp. 202--220 SCIENTIFIC NOTES On implicit Runge-Kutta methods with high stage order C. Bendtsen, pp. 221--226 On a conjecture of D. B. Hunter H. Brass and K. Petras, pp. 227--231 A de Casteljau algorithm for generalized Bernstein polynomials G. M. Phillips, pp. 232--236 Contributions in LaTeX are preferred. Information for subscription and style files are available from the Editor or from the WWW server for BIT at: http://math.liu.se/BIT/ ------------------------------ From: SIAM Date: Wed, 22 Jan 97 09:48:16 EST Subject: Contents, SIAM Scientific Computing SIAM Journal on Scientific Computing MARCH 1997, Volume 18, Number 2 CONTENTS Multiresolution Schemes for the Numerical Solution of 2-D Conservation Laws I Barna L. Bihari and Ami Harten A Spectral Element Technique with a Local Spectral Basis Kelly Black A Galerkin Method for Linear PDE Systems in Circular Geometries with Structural Acoustic Applications Ralph C. Smith A Fast Adaptive Numerical Method for Stiff Two-Point Boundary Value Problems June-Yub Lee and Leslie Greengard Revenge of the Semicoarsening Frequency Decomposition Multigrid Method J. E. Dendy, Jr. Multilevel Solution of Cell Vertex Cauchy-Riemann Equations A. Borzi, K.W. Morton, E. Suli, and M. Vanmaele t-Extrapolation - Theoretical Foundation, Numerical Experiment, and Application to Navier-Stokes Equations Klaus Bernert Hierarchical Basis Preconditioners in Three Dimensions Maria Elizabeth G. Ong Preconditioning of Block Toeplitz Matrices by Sine Transforms Fabio Di Benedetto CIMGS: An Incomplete Orthogonal Factorization Preconditioner Xiaoge Wang, Kyle A. Gallivan, and Randall Bramley GPBi-CG: Generalized Product-Type Methods Based on Bi-CG for Solving Nonsymmetric Linear Systems Shao-Liang Zhang The Accumulation of Rounding Errors and Port Validation for Global Atmospheric Models James M. Rosinski and David L. Williamson Computation of Pseudospectra by Continuation S. H. Lui Empirical Evaluation of Innovations in Interval Branch and Bound Algorithms for Nonlinear Systems R. Baker Kearfott Equidistribution on the Sphere Jianjun Cui and Willi Freeden Timely Communications Diagonal Edge Preconditioners in p-Version and Spectral Element Methods Mario A. Casarin Efficient Algorithms for Solving a Fourth-Order Equation with the Spectral-Galerkin Method Petter E. Bjorstad and Bjorn Peter Tjostheim ------------------------------ End of NA Digest ************************** -------