From na-net@na-net.stanford.edu Sat Apr 2 10:06:46 1988 Received: from anl-mcs.ARPA by antares.mcs.anl (3.2/SMI-3.2) id AA10302; Sat, 2 Apr 88 10:06:42 CST Received: from Modesty.stanford.edu (98000824) by anl-mcs.ARPA (4.12/4.9) id AA26653; Sat, 2 Apr 88 10:04:40 cst Received: from Patience.stanford.edu by Modesty.stanford.edu (4.0/inc-1.3) id AA04749; Sat, 2 Apr 88 07:54:21 PST Received: by Patience.stanford.edu (4.0/inc-1.3) id AA24119; Sat, 2 Apr 88 06:43:41 PST Date: Sat, 2 Apr 88 06:43:41 PST From: na-net@na-net.stanford.edu Message-Id: <8804021443.AA24119@Patience.stanford.edu> Return-Path: Subject: NA-NET distribution message Errors-To: postmaster@na-net.stanford.edu Maint-Path: maintainer@na-net.stanford.edu To: na-net@na-net.stanford.edu Reply-To: na-net@na-net.stanford.edu Comment: requests, comments or problems to nanet@na-net.stanford.edu Comment: submissions to na@na-net.stanford.edu Comment: alternate address: na%na-net@score.stanford.edu Status: R NA Digest Saturday, April 2, 1988 Volume 88 : Issue 14 Today's Editor: Cleve Moler Today's Topics: Positions at University of Linz, Austria Jobs at Bristol Leslie Fox Prize 1988 Constrained Approximation Problem Using Netlib AMS Reviews in Numerical Analysis ------------------------------------------------------- From: Heinz Engl Date: Tue, 29 Mar 88 15:33:59 EDT Subject: Positions at University of Linz, Austria Several positions as 'Universitaetsassistent' (roughly equivalent to U.S. Assistant Prof., both temporary and tenure track) will be available from July 1988 or some months later at the newly created Chair for Industrial Mathematics at the Johannes-Kepler-Universitaet in Linz, Austria. Consideration will be given to applicants holding a Ph.D. (or at least a diploma or master's degree) in any area of applied and computational mathematics. Preference will be given to those with some experience in solving industrial problems, since duties include (besides teaching and research) work on research projects from industry. Some knowledge of German is desirable, but not absolutely necessary. However, it would be necessary to learn enough German for teaching as soon as possible. Yearly salary is around $US 20000 -- at current exchange rate. This is not yet a formal advertisement, but a preliminary information. Those interested should send relevant information (including e-mail address, if applicable) as soon as possible to Prof. Heinz W. Engl Institut fuer Mathematik Johannes-Kepler-Universitaet A-4040 Linz, AUSTRIA E-mail: K310773 at AEARN.BITNET or na.engl at na-net.stanford.edu ------------------------------ From: Andy Wathen Date: Wed, 30 Mar 88 14:36+0100 Subject: Jobs at Bristol UNIVERSITY OF BRISTOL TEMPORARY POSTS IN DEPT. OF MATHEMATICS Applications are invited for: (a) a temporary lectureship in NUMERICAL ANALYSIS (b) a temporary lectureship in STATISTICS both tenable for one year, and (c) a two-year post of COMPUTER OFFICER to assist with software and hardware management for courses and projects within the department. This is an opportunity for a graduate to participate in a wide range of computer-related activities involving PCs and mainframes The above posts are tenable from a mutually agreed date before October 1988 on a salary within the range UK pounds 8675-14500 depending on age, qualifications and experience. Further particulars can be obtained from the Registrar and Secretary, University of Bristol, Senate House, Bristol BS8 1TH, England to whom applications, containing a c.v. and names of three referees should be sent, to be received by 16 May 1988, quoting ref JC1. ------------------------------ From: Iain Duff Date: Wed, 30 Mar 88 12:48:36 cst Subject: Leslie Fox Prize 1988 The high standard of the previous Leslie Fox Prize Competitions was maintained this year in the presentations given by the finalists at a meeting at Imperial College, London on Monday March 28th. In a very hotly contested competition, the first prize was awarded to Nick Higham of the University of Manchester for his presentation on Analysis of the Cholesky decomposition of a semi-definite matrix. The standard was so high that the Committee decided to present second prizes to the other finalists, who were (in alphabetical order) ... T Hagstom (SUNY, Stony Brook). Asymptotic boundary conditions for computational studies of wave propagation. P T Harker (Univ of Pennsylvania) Accelerating the convergence of the diagonalization and projection algorithm for finite-dimensional variational inequalities. R H Jackson (Univ of Cambridge) An order of convergence for radial basis functions. T Tang (Univ Leeds) On the spline collocation methods for non-standard Volterra Integro-Differential equations. Congratulations are due to all candidates for providing a memorable and stimulating occasion providing ample evidence of the continued health of numerical analysis research amongst the younger ( < 31) members of our community. The next Fox Prize will be awarded in 1989, either in June or September. An announcement and call for entries will appear shortly. ------------------------------ From: Ken Jackson Date: Wed, 30 Mar 88 14:35:27 EST Subject: Constrained Approximation Problem Constrained Approximation Problem An economist here posed the following question: Given a set of interpolation points (x(i),y(i)), i=1,..,n, and two values b1 and b2, does there exist a twice continuously differentiable function y which interpolates the points (x(i),y(i)) and satisfies |y'(x)| <= b1 and |y''(x)| <= b2? An alternate form of the question is: Given the interpolation points (x(i),y(i)), i=1,...,n, what are the minimum values of b1 and b2 such that there does exist a function y satisfying the problem above? He's also interested in other generalizations of these problems. Clearly, b1 has to be at least as large as the maximum magnitude of the first divided difference of each pair of adjacent data points and b2 has to be at least as large as twice the magnitude of the second divided difference of each adjacent triple of data points. If b1 or b2 is smaller than this, then the problem has no solution. But, if b1 and b2 are equal to these bounds, then it is easy to construct examples of problems that have no solution as well. So this simple first try at a solution is not sufficient. I would guess that problems of this sort are quite common in science and engineering, but I have not seen any discussion of them in the literature. Do you know a reference? Or do you know a good solution technique for problems of this sort? Ken Jackson, krj@csri.toronto.edu (csnet) Department of Computer Science, uunet!csri.toronto.edu!krj (uucp) University of Toronto, krj@csri.toronto.cdn (ean x.400) Toronto, Canada M5S 1A4 krj%csri.toronto.edu@relay.cs.net (arpa) (416) 978-7075 krj@csri.utoronto (bitnet) ------------------------------ From: Matt Crawford Date: 29 Mar 88 20:41:46 GMT Subject: Using Netlib Given the writeup in this month's Unix Review, I think I had better send this reminder and correction. To access the mathematical software in the Argonne "netlib", write to netlib@anl-mcs.arpa only if you are using the internet. (There is no underscore after "netlib", although the Unix Review "Off the Shelf" column had one.) If you are using UUCP, write to research!netlib instead. Someone in uucp-land just asked for five complete libraries and the requests had bad return addresses, so oddjob no longer forwards uucp requests to anl-mcs. Matt Crawford University of Chicago matt@oddjob.uchicago.edu crawford@anl-mcs.arpa ------------------------------ From: Mary Medeiros Date: Wed 30 Mar 88 9:46:41-EST Subject: AMS Reviews in Numerical Analysis The American Mathematical Society has just published a five-volume set "Reviews in Numerical Analysis, 1980-86." The books contain the complete reviews as they appeared in Mathematical Reviews during 1980-86 of all of the over 17,600 reviews of articles, books, and conference proceedings in numerical analysis. Author and key indexes appear in Volume 5. Prices: List $250, Individual AMS members $150, MR Reviewers $125. Order code: REVNAN/86EM. To order, call 1-800-556-7774 in the continental U.S. or write to American Mathematical Society, P.O. Box 6248, Providence, RI 02940. Visa and Master Card accepted. Prepayment required. ------------------------------ End of NA Digest ************************** -------