krj@csri.toronto.edu (Ken Jackson) (01/22/89)
NA Digest Sunday, January 15, 1989 Volume 89 : Issue 2 Today's Editor: Cleve Moler Today's Topics: Errata Sheet for Kahaner, Moler and Nash Change of Address for Nancy Nichols Unsymmetric Lanczos Finite Differences Applied to Boundary Value Problems Info/code wanted on Patankar's SIMPLER model SIAM Upcoming Conferences Non-linear Unconstrained Optimization in Control Jenkins-Traub Algorithm for Polynomial Zeros New Book Series on Scientific Computing Positions at Boeing Computer Services Position in Computation at ARO ------------------------------------------------------- From: Stephen Nash <SNASH%GMUVAX.BITNET@Forsythe.Stanford.EDU> Date: Mon, 9 Jan 89 10:16 EST Subject: Errata Sheet for Kahaner, Moler and Nash An errata sheet has been prepared for the book NUMERICAL METHODS AND SOFTWARE by D. Kahaner, C. Moler, and S. Nash. A copy can be obtained by sending a message to Stephen Nash at NA.NASH on NA-NET, or by writing to either David Kahaner Stephen Nash Technology Bldg., Room A151 ORAS Dept. NIST George Mason University Gaithersburg, MD 20899 Fairfax, VA 22030 Please include your mailing address, since the errata sheet will be sent in paper rather than electronic form. The errata sheet is constantly being updated. If you find additional errors, or have suggestions for later printings of the book, please let one of us know. ------------------------------ From: Nancy Nichols <NANCY%NCSUMATH.BITNET@Forsythe.Stanford.EDU> Date: Mon, 09 Jan 89 15:22:34 EST Subject: Change of Address for Nancy Nichols To friends and colleagues: I am once again at North Carilina State University for this semester (until about May 6). My e-mail address is nancy@ncsumath.bitnet or the usual na.nichols@na-net.stanford.edu My office address and phone are Department of Mathematics North Carolina State University Box 8205 Raleigh NC27695 - 8205 (919)-737-3100 (or 737-3796 for mssgs) Home phone is (919) 782-4757 Hope you all have a verrrry Happppy New Year. Nancy ------------------------------ From: Wei Pai Tang <wptang%watfun.waterloo.edu@relay.cs.net> Date: Mon, 9 Jan 89 15:56:32 EST Subject: Unsymmetric Lanczos I am developing a new tridiagonalization algorithm for unsymmetric matrices and would like to compare with Lanczos algorithm. My experience was: when n > 40, Lanczos provides no good information. I am not very sure if there is some better software available out there in NA-Net. I would very much appreciate it if you might give me a pointer or send me a better version of unsymmetric Lanczos. My email address is na.tang@na-net.stanford.edu wptang@water.waterloo.edu Thank you in advance! ------------------------------ From: Adrian Barry <mcvax!ukc!cs.tcd.ie!vax1!ambarry@uunet.uu.net> Date: 9 Jan 89 14:47:12 GMT Subject: Finite Differences Applied to Boundary Value Problems Has anyone in this hitherto neglected area got an algorithm for solving boundary value DE's, using the finite difference method, combined with Richardson's method ? Please ?! An answer combining both, or either one would be appreciated. Adrian Barry, Engineering Dept TCD, Ireland. ------------------------------ From: Mike Riley <ccncsu!csupwb.colostate.edu!miker@boulder.colorado.edu> Date: 10 Jan 89 06:08:15 GMT Subject: Info/code wanted on Patankar's SIMPLER model Has anybody had any experience implementing Patankar's finite difference SIMPLER model for solving elliptic pde's? I'm trying to write code to calculate flow and temperature variables in an enclosure. I'm assuming constant density and steady state. Boundary conditions include no slip for the walls, pressure and temperature may be either Dirichlet or Von Neumann. I'm using primitive variables as I might later want to go to 3-D. Any information/code would be greatly appreciated. Please mail replies to Mike Riley at: Internet: miker@csupwb.ucc.colostate.edu Bitnet: miker@csugreen.bitnet Thanks in advance, Mike Riley. Colorado State University, Fort Collins ------------------------------ From: Michelle Jones <SIAM@wharton.upenn.edu> Date: Mon, 9 Jan 89 13:33 EST Subject: SIAM Upcoming Conferences SIAM Conference on Domain Decomposition Methods March 20-22, 1989 J.W. Marriott Hotel, Houston, TX Invited Presenters Ken Kennedy, Rice University; William Symes, Rice University; Jacques Periaux, Avions Marcel Dassault/Breguet Aviation, France; Mary F. Wheeler, University of Houston; Pierre-Louis Lions, Universite de Paris; Yuri Kuznetsov, USSR Academy of Sciences; Alfio Quarteroni; Catholic University of Brescia, Italy, and Istituto di Analisi Numerica del Consiglio Nazionale delle Rescherche; Gerard Meurant, Centre d'Etudes de Limeil-Valenton; Robert M. Ferencz, Lawrence Livermore National Laboratory; and James H. Bramble, Cornell University. Third SIAM Conference on Optimization April 3-5, 1989 57 Park Plaza Hotel, Boston, MA Invited Presenters Kurt Anstreicher, Yale University; Jorge Nocedal, Northwestern University; Richard A. Tapia, Rice University; Philippe L. Toint, Faculte Universitaire Notre Dame de la Paix, Namur, Belgium; Dimitri P. Bertsekas, Massachusetts Institute of Technology; Clovis Gonzaga, Federal University of Rio de Janeiro, Brazil; James B. Orlin, Massachusetts Institute of Technology; Robert B. Schnabel, University of Colorado, Boulder; and Philip E. Gill, Stanford University. SIAM Conference on Control in the 90's: Achievements, Opportunities and Challenges May 17-19, 1989 Cathedral Hill Hotel, San Francisco, CA Invited Presenters John A. Burns, Virginia Polytechnic Institute and State University; Wendell H. Fleming, Brown University; Alberto Isidori, Universita degli Studi di Roma "La Sapienza"; P.R. Kumar, University of Illinois, Urbana; Alan J. Laub, University of California, Santa Barbara; Jacques Louis-Lions, College de France and Centre National d'Etudes Spatiales, France; Andrzej Manitius, George Mason University; Steven I. Marcus, University of Texas, Austin; Jan C. Willems, University of Groningen, The Netherlands. SIAM Annual Meeting July 17-21, 1989 Sheraton Harbor Island Hotel, San Diego, CA Invited Presenters Jerry L. Bona, Pennsylvania State University; Tony F. Chan, University of California, Los Angeles; James W. Demmel, Courant Institute of Mathematical Sciences; James P. Keener, University of Utah; Hanoch Lev-Ari, Stanford University; Thomas A. Manteuffel, Los Alamos National Laboratory and University of Colorado, Denver; Robert L. Parker, University of California, San Diego; Philip G. Saffman, California Institute of Technology; Danny C. Sorensen, Argonne National Laboratory; and Jeffrey Speiser, Naval Ocean Systems Center, San Diego. SIAM Conference on Mathematical and Computational Issues in Geophysical Fluid and Solid Mechanics September 25-28, 1989 Stouffer Greenway Plaza Hotel, Houston, TX Invited Presenters Alain Bamberger, Institut Francais du Petrol, France; Michael M. Carroll, Rice University; James Dieterich, U.S. Geological Survey; Jim Douglas, Jr., Purdue University; Bjorn Engquist, University of California, Los Angeles; Paul C. Fife, University of Utah; James M. Hyman, University of Arizona and Los Alamos National Laboratory; Barbara L. Keyfitz, University of Houston; Andrew J. Majda, Princeton University; Peter Ortoleva, Indiana University, Bloomington; George Pinder, University of Vermont; Luc Tartar, Carnegie-Mellon University; Mary F. Wheeler, University of Houston; and Benjamin S. White, Exxon Research and Engineering Company. SIAM Conference on Geometric Design November 6-10, 1989 Sheraton Mission Palm Hotel, Tempe, AZ Invited Presenters Alan H. Barr, California Institute of Technology; Philip J. Davis, Brown University; Rida Farouki, IBM-T.J. Watson Research Center; John A. Gregory, Brunel University; Dave Gossard, Massachusetts Institute of Technology; Cleve Moler, Ardent Computer Corporation; John Rice, Purdue University; Larry Schumaker, Vanderbilt University; Tom Sederberg, Brigham Young University; Peter Wilson, General Electric Corporation; Michael Wozny, Rensselaer Polytechnic Institute. For further information on registration or to obtain abstracts for contributing papers or minisymposia, please contact: SIAM Conference Coordinator Suite 1400, Architects Building 117 S. 17th Street Philadelphia, PA 19103-5052 (215) 564-2929 FAX: 215-564-4174 E-Mail Address: SIAM@WHARTON.UPENN.EDU ------------------------------ From: Elizabeth Seaman <thor.ucsd.edu!maiden@sdcsvax.ucsd.edu> Date: 11 Jan 89 07:58:10 GMT Subject: Non-linear Unconstrained Optimization in Control I am looking for references/pointers to the adaptive control literature concerning the problem of search strategies in "parameter space" for control problems. This can also be thought of as belonging to the non-linear unconstrained optimization realm. In particular, I am interested in "diffusion" type approaches, methods for controlling step size, methods for finding search directions, and feedback paradigms. Thanks for your help... e-mail to address below; I will post a summary if there is interest. maiden@cs.ucsd.edu maiden@sdcsvax.ucsd.edu ...!sdcsvax!maiden ...!beowulf!maiden Elizabeth C. Seaman University of California, San Diego ------------------------------ From: Jonathan M. Smith <jms@close.cs.columbia.edu> Date: Wed, 11 Jan 89 11:14:48 est Subject: Jenkins-Traub Algorithm for Polynomial Zeros Does anyone have a typed-in, working version of ACM algorithm #419, for zeros of a complex polynomial (a.k.a. Jenkins-Traub). Fortran is fine, although C would be better for my purposes. Thanks, -Jonathan jms@close.cs.columbia.edu ------------------------------ From: Youcef Saad <saad@riacs.edu> Date: Thu, 12 Jan 89 13:54:59 PST Subject: New Book Series on Scientific Computing Manchester University Press announces a new series in computer science entitled: "ALGORITHMS AND ARCHITECTURES FOR ADVANCED SCIENTIFIC COMPUTING" This new series will focus on recent advances in scientific computing, with emphasis on new algorithmic methods and computer architectures. It will reflect the rapid developments in advanced scientific computing as a whole, including the aspects that are purely algorithmic and those related to the impact of supercomputer technology. Some of the topics where books and monographs are actively sought are the following: 1) Parallel and vector numerical and non-numerical algorithms ; 2) Supercomputer applications; 3) New algorithms and methods in scientific computing; 4) Modern architectures for scientific computing. The series will not include conference proceedings. Rather it will consist of structured books written by an individual or a small expert group. It is planned to co-publish the series in the US. Series Editors: Dr. Yves Robert Dr. Youcef Saad Laboratoire LIP-IMAG RIACS MS 230-5 Ecole Normale Superieure de Lyon NASA Ames res. Center 46 allee d'Italie Moffett Field, CA 94035 69364 Lyon Cedex 07 Lyon FRANCE yrobert@enls.ens-lyon.fr (uucp) saad@riacs.edu Editorial Board: . Tony F. Chan, UCLA . George Cybenko, University of Illinois . Bill Gropp, Yale . Marina Chen, Yale . Michel Cosnard, Ecole Normale Sup., Lyon (France). . Prof. D. J. Evans, Loughborough, UK . Piero Sguazzero, IBM ECSEC Rome If you are interested in publishing a book in the series or would like further information write to the series editors. ------------------------------ From: Roger Grimes <rgrimes@atc.boeing.com> Date: Fri, 13 Jan 89 14:16:05 pst Subject: Positions at Boeing Computer Services Job Opportunities in the Applied Mathematics Group in Boeing Computer Services The Applied Mathematics Group in Boeing Computer Services, located in Seattle, Washington anticipates openings in early 1989 for well qualified individuals in Numerical Linear Algebra Information Theory Image Processing We are looking for entry level or experienced PhDs with either a dissertation or post-graduate experience in one or more of the above fields and an interest in applying this background to challenging real world problems. Our group consists of about 35 mathematicians performing consulting and research work for other parts of The Boeing Company, for commercial customers, and for governmental agencies. We require individuals capable of working independently in a dynamic, multidisciplinary environment on complex algorithm, analysis, and application software problems. Qualified applicants should send a resume to: Dr. James L. Philips Manager, Applied Mathematics Boeing Computer Services P.O. Box 24346, MS 7L-21 Seattle, WA 98124-0346 Inquiries via electronic mail can be made to either John Lewis (na.lewis) or Roger Grimes (na.grimes). Boeing is an Equal Opportunity Employer ------------------------------ From: Arthur Wouk <wouk@BRL.MIL> Date: Fri, 13 Jan 89 14:10:35 EST Subject: Position in Computation at ARO I will be retiring at the end of March, and the official announcement of a search for my replacement follows. Please note that this is a position at the Ph.D. level for someone with active research experience in areas related to scientific computation and a wide range of interests. For further details about the technical content of the position, feel free to contact Dr. Jagdish Chandra, Director, Mathematical Sciences Division, ARO, at 919-549-0641. Details of how to obtain the forms required for applying for the position are listed below: Arthur Wouk, ARO U.S. ARMY RESEARCH OFFICE P.O. BOX 12211 RESEARCH TRIANGLE PARK, NORTH CAROLINA 27709 POSITION: Mathematician, GS-1520-14 or Computer Scientist, GS-1550-14 (Interdisciplinary Position) SALARY: $48,592 - $63,172 per annum LOCATION: Mathematical Sciences Division, U.S. Army Research Office Research Triangle Park, North Carolina OPENING DATE: 17 January 1989 CLOSING DATE: 16 February 1989 AREA OF CONSIDERATION: All Sources. Applications will be accepted from current career or career-conditional employees, reinstatement eligibles and non-status applicants eligible for appointment from an appropriate Office of Personnel Management register. Consideration will also be given to individuals eligible under special authorities (e.g., physically handicapped, 30% or more disabled veterans). ALL QUALIFIED APPLICANTS WILL RECEIVE CONSIDERATION FOR THE ABOVE POSITION WITHOUT DISCRIMINATION FOR ANY NON-MERIT REASON SUCH AS RACE, COLOR, RELIGION, SEX, AGE, NATIONAL ORIGIN, POLITICS, MARITAL STATUS, PHYSICAL HANDICAP WHICH DOES NOT INTERFERE WITH ACCOMPLISHMENT OF JOB, OR MEMBERSHIP/NON-MEMBERSHIP IN AN EMPLOYEE ORGANIZATION. DUTIES: Serves as Program Manager of the Computational Mathematics Program which includes Numerical Analysis, Optimization, Discrete Mathematics and Theoretical Computer Science. Research projects emphasize the development and analysis of numerical methods for the solution of nonlinear equations arising in such areas as solid and fluid mechanics, aerodynamics and chemical kinetics, as well as the development of the underlying technologies in numerical linear algebra, nonlinear algebraic systems and optimization. Other research projects are directed toward new technologies in high performance computing relating to scientific computing and mathematical software and the computational aspects of robots, including new mathematical methods in computational geometry and control logics for robot manipulators. Evaluates and correlates the requirements, scope and objectives of the overall Army research program in computational mathematics and/or theoretical computer science. Evaluates and disseminates the results of the research programs of the Army and also those of other Government and private agencies (domestic and foreign) which may be of significant interest to the Army. Initiates and exercises surveillance over research contracts and/or grants. The actual research is conducted in institutions of higher learning, private research organizations, laboratories, and other Government agencies. Makes significant decisions as to the acceptability of proposals to perform research projects, taking into consideration such factors as the competence of research investigators, relevancy and type of research proposed and necessity for such research in terms of military and fiscal considerations. Reviews progress and technical reports on research in progress, making major decisions as to their significance and whether they warrant continued support. Maintains personal contact with all scientists involved in the program, overseeing their performance, aiding in the solution of their problems and bringing Army needs to their attention. Pursues research and/or advanced study within or outside of locally available institutions on projects of personal interest and whose content is relevant to the mission of the Army. MINIMUM OPM QUALIFICATION REQUIREMENTS: Basic Requirements: Candidates must show successful completion of a full 4-year or longer curriculum in an accredited college or university leading to a bachelor's (or higher) degree. For GS-1520, course of study must have included 24 semester hours in mathematics. For GS-1550, course of study must have included 30 semester hours in a combination of mathematics, statistics, and computer science that provided in-depth knowledge of the (1) theoretical foundations and practical applications of computer science, including digital computer system architecture and system software organization, the representation and transformation of information structures, and the theoretical models for such representations and transformations; and (2) essential mathematical and statistical techniques. Professional Experience: In addition to the basic requirement, candidates must have three years of professional experience in computational mathematics and/or theoretical computer science. This experience must have equipped the candidate with the knowledge and ability to perform fully the work of the position. Candidates may have equivalent combinations of professional experience and graduate education as authorized in OPM Handbook X-118, GS-1520 and GS-1550. Quality of Experience: At least one year of the required experience must have been at a level of difficulty comparable to that of the next lower grade level in the Federal service. SELECTIVE PLACEMENT FACTOR: Ability to perform fundamental research in mathematics or computer science. TIME-IN-GRADE REQUIREMENT: Candidates for advancement to a position at the GS-14 level must have completed at least one year of service in positions no more than one grade lower than the position to be filled. SPECIAL REQUIREMENT: Available to travel up to 30% of the time. SECURITY REQUIREMENT: Selection for or retention in this position is contingent upon satisfactory results of a security investigation and ability to obtain appropriate security clearance. Offer of position may be withdrawn or employee may be terminated if above conditions of employment are not met. CRITERIA FOR DETERMINING HIGHLY QUALIFIED: Applicants will be evaluated as to degree of possession of Knowledge, Skills and Abilities (KSA) listed below: 1. Ability to plan, direct, and guide a research program in computational mathematics and/or theoretical computer science. 2. Ability to evaluate research proposals for technical merit. 3. Advanced knowledge at doctorate level or equivalent scientific studies and research in computational mathematics and/or theoretical computer science and evidence that technical competence has been maintained. 4. Ability to interact with other scientists, professional groups and management officials. EVALUATION METHODS: BASIC ELIGIBILITY will be determined by review of the applicant's SF 171 against: (1) Minimum qualifications in accordance with the USOPM Handbook, X-118, Mathematics Series, GS-1520 or Computer Science Series, GS-1550, and (2) Any selective placement factors. HIGHLY QUALIFIED determinations will be based upon evaluation of the candidate's background as compared to the KSA's by application of the following rating instruments: experience, training and education, supervisory appraisals and related awards. BEST QUALIFIED candidates will be derived by further evaluation and ranking of the highly qualified group. Ranking is required when there are more than 10 basically eligible candidates. HOW TO APPLY: Applicants who have status with the Federal Government should forward one copy of the following documents to: U.S. Army Research Office, ATTN: SLCIS-CP-AR, P.O. Box 12211, Research Triangle Park, NC 27709-2211. Documentation must be received by closing date. (1) A completed Standard Form 171 (Personal Qualifications Statement). Item 1 of the SF 171 should identify "Mathematician" or "Computer Scientist" and ARO Announcement No. 89-5; (2) ARO Supplemental Applicant Statement; (3) ARO Supervisory Appraisal of Job Related Knowledge, Skills and Abilities; (4) Latest Supervisory Performance Rating; (5) OPM Form 1386; and (6) Current SF 50, Notification of Personnel Action. Non-status applicants should contact the ARO Support Branch, U.S. Army Research Office (numbers listed below) to obtain appropriate forms to be placed on the Office of Personnel Management register for Mathematician and related positions in the southeastern United States. ADDITIONAL INFORMATION: To obtain further information about the position, contact ARO Support Branch, AUTOVON 935-3331 or Commercial (919) 549-0641, Extension 212. RELOCATION SERVICES ARE AVAILABLE FOR THIS POSITION FOR CURRENT FEDERAL EMPLOYEES. USE OF POSTAGE-PAID GOVERNMENT AGENCY ENVELOPES TO FILE JOB APPLICATIONS IS A VIOLATION OF FEDERAL LAW AND REGULATIONS. APPLICATIONS RECEIVED IN POSTAGE-PAID GOVERNMENT ENVELOPES WILL NOT BE CONSIDERED. ------------------------------ End of NA Digest ************************** ------- Reposted by