Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!utcsri!krj From: krj@utcsri.UUCP Newsgroups: ut.na Subject: NA Digest v87 #71 Message-ID: <5417@utcsri.UUCP> Date: Sat, 19-Sep-87 19:29:06 EDT Article-I.D.: utcsri.5417 Posted: Sat Sep 19 19:29:06 1987 Date-Received: Sun, 20-Sep-87 14:04:51 EDT Distribution: ut Organization: CSRI, University of Toronto Lines: 276 NA Digest Friday, September 18, 1987 Volume 87 : Issue 71 This weeks Editor: Cleve Moler Today's Topics: Deuflhard heads the Konrad Zuse Center June 1988 Linear Algebra Lecture Series at Johns Hopkins Bischof Awarded Wilkinson Fellowship in Computational Mathematics Pacific Northwest Numerical Analysis Seminar, September 26 Vector-radix 2D FFT code Alliant User's Meeting ---------------------------------------------------------------------- Date: Mon, 14 Sep 87 12:05 CET To: na@score.stanford.edu From: ZB6201%DB0ZIB21.BITNET@jade.berkeley.edu Subject: Deuflhard heads the Konrad Zuse Center Dear Colleagues, This is a general letter to reach all those of you that have not yet received my new address. After having left the University of Heidelberg I have now a joint position in Berlin both as full professor lecturing at the Free University and as head of the newly founded Konrad Zuse Center. The Konrad Zuse Center (in German: Konrad-Zuse-Zentrum fuer Informationstechnik Berlin, abbreviation: ZIB) is intended to be an institute for research and development in the general area of scientific computing / computer science. Main topics treated here are: Numerical Mathematics, Computer Graphics, Software Development, Symbolic Computing, Systolic Arrays and Algorithms, Distributed Systems and High Speed Networks. Of course, this is certainly a challenging task for the future to come. The emphasis of our research will be the development of efficient algorithms and user oriented software essentially for highly nonlinear systems, ordinary differential equations, differential algebraic equations, parabolic and elliptic partial differential equations. Technologically relevant applications are envisaged. As for the equipment, we run a CRAY X-MP/24 surrounded by smaller computers from IBM, CDC, Siemens, VAX, and a series of workstations. The use of our CRAY X-MP is shared with the two Berlin Universities and a number of universities in Northern West Germany. We are presently establishing world-wide cooperation with universities, research institutes, and industry. If you feel curious enough to visit, please let me know. The two addresses mentioned are: Konrad Zuse Center Heilbronner Strasse 10 D-1000 Berlin 31 and Mathematical Institute III Free University Berlin Arnimallee 2-6 D-1000 Berlin 33 Best regards to all of you Peter Deuflhard ------------------------------ Date: Mon, 14 Sep 87 14:06 EST From: Roger Horn Subject: June 1988 Linear Algebra Lecture Series at Johns Hopkins TO: NA@SCORE.STANFORD.EDU The Twelfth Mathematical Sciences Lecture Series and Conference Department of Mathematical Sciences The Johns Hopkins University Baltimore, Maryland 21218 PROFESSOR ROBERT C. THOMPSON University of California, Santa Barbara will lecture on MATRIX SPECTRAL INEQUALITIES June 20-24, 1988 The 1988 Johns Hopkins Mathematical Sciences Lecture Series and Con- ference will be held during the week of June 20-24, 1988. The principal speaker will be Professor Robert C. Thompson of the University of Califor- nia at Santa Barbara. Professor Thompson's lectures will focus on inequal- ities for eigenvalues, singular values, and invariant factors. Applica- tions in control theory and functional analysis will be mentioned. Professor Thompson will give ten lectures, two each day, on topics such as: eigenvalues of a sum of Hermitian matrices; eigenvalues of a product of unitary matrices; eigenvalues and the exponential function; eigenvalues and the Schubert calculus; invariant factors of matrix pro- ducts and sums; invariant factors, eigenvalues, and representation theory; quaternions and invariant factors; and other related topics. Useful background for the lectures is in Chapter II of Gohberg & Krein's Introduction to the Theory of Linear Nonselfadjoint Operators, American Mathematical Society Translations, Vol. 18, 1969. The lecture series and conference are co-sponsored by the Department of Mathematical Sciences and The Johns Hopkins University Press. A mono- graph by Professor Thompson derived from his lectures will be published by the Press in the Johns Hopkins Series in the Mathematical Sciences. An earlier volume in the Series, Matrix Computations by Gene Golub and Charles Van Loan, is well-known to the matrix theory and numerical analysis community. Invited and contributed talks by participants will provide complemen- tary material and variations on the theme of the lecture series. Informal interactions will be encouraged by small group discussions, sessions for presentation and discussion of open problems, and social events. Participants will be selected from applicants from universities, government, and industry. Interested researchers and advanced graduate students are cordially invited to apply to participate. Applications for travel and subsistence funds for participants have been made to several granting agencies. Inexpensive on-campus housing and meals will be available. All participants are invited to contribute a paper related to the theme of the lecture series. These papers have been specially invited by editors of the new SIAM journal Matrix Analysis and Applications. Potential participants are urged to contact the organizers now in order to receive first priority for further information as it becomes available. Electronic mail is particularly convenient for this purpose. Professor Roger A. Horn or Professor Edward R. Scheinerman Department of Mathematical Sciences, The Johns Hopkins University, Baltimore, Md. 21218 E-mail: MSC_HRAH@JHUVMS (Horn) or MSC_WERS@JHUNIX (Scheinerman) Applications to participate in the Series should be made in writing to either of the organizers and should include a curriculum vitae and a brief statement about one's background and interest in matrix analysis/linear algebra if this is not already evident in the vitae. Please include a complete mailing address, telephone number, and E-mail address, if available. Graduate students should have a letter of recommendation sent from their major professor. All accepted applicants will receive a form to request financial support, but there is no assurance that support will be available. Applications are welcome now, and must be received no later than April 8, 1988 to ensure consideration for on-campus housing and financial support. ------------------------------ Date: Mon, 14 Sep 87 20:08:51 cdt From: dongarra@anl-mcs.ARPA (Jack Dongarra) To: na.dis@score.stanford.edu Subject: Bischof Awarded Wilkinson Fellowship in Computational Mathematics Wilkinson Fellowship in Computational Mathematics We are pleased to announce the winner of the James H. Wilkinson Fellowship in Computational Mathematics, Christian Bischof from the Computer Science Department at Cornell University. The Wilkinson Fellowship is intended to encourage young scientists who are actively engaged in state-of-the-art research in computational mathematics. Chris Bischof was selected out of some twenty outstanding applicants in the field of computational mathematics. Chris's research is in numerical linear algebra and algorithms for high performance computers. He will be joining the Mathematics and Computer Science Division at Argonne National Laboratory in the summer of 1988. ------------------------------ Date: Mon, 14 Sep 87 13:11:30 EDT From: Randy LeVeque To: na.moler@score.stanford.edu Subject: Pacific Northwest Numerical Analysis Seminar, September 26 Pacific Northwest Numerical Analysis Seminar Saturday, September 26, 1987 Husky Union Building, Room 200ABC University of Washington This regional Numerical Analysis meeting will bring together faculty, students, industrial researchers and others in the Pacific Northwest who share an interest in numerical analysis and scientific computing. (People from elsewhere are welcome too of course!) There is no registration charge and no funds are available for supporting attendees. SCHEDULE 10:00 - 10:30 Welcoming coffee 10:30 - 11:15 John Lewis, Boeing Computer Services High performance sparse Cholesky 11:15 - 12:00 Robert Higdon, Oregon State University Absorbing boundary conditions for the wave equation 12:00 - 1:30 Lunch 1:30 - 2:15 Robert Russell, Simon Fraser University Singularly perturbed ODEs 2:15 - 3:00 Carl Pearson, University of Washington Numerical methods for multiple integration 3:00 - 3:30 Break 3:30 - 4:15 David Watkins, Washington State University The QR family of algorithms for the eigenvalue problem 4:15 - 5:00 Uri Ascher, University of British Columbia Differential-algebraic equations and applications in semiconductor device simulation 5:30 Buffet dinner For more information please contact: Randy LeVeque (206) 543-7898 Mathematics Department, GN-50 rjl@entropy.ms.washington.edu University of Washington Seattle, WA 98195 ------------------------------ Date: 15 Sep 87 01:40:17 GMT From: chu@tcgould.tn.cornell.edu (Clare Chu) Subject: Vector-radix 2D FFT code To: na@score.stanford.edu Hi. Does anyone have a canned vector-radix 2D FFT code which inputs a 2D array, or matrix and outputs the 2D FFT? This is done by (decimating) splitting in the 2D directions. See Blahut pp. 242-243 (Fast Algorithms for Digital Signal Processing) and Rivard, G.E. "Direct fast Fourier transform of bivariate functions." IEEE Trans. Acoust. Speech Signal Proc., vol. ASSP-25, no. 3, pp. 250--252, June 1977. Thanks a lot. I guess I could code it up myself, but I'm in a big hurry trying to finish up my dissertation. You know how that goes. In any case, I would really appreciate it if someone could either send me the code, or point to where I can get it. I will fully acknowledge the origin of the code and everything. Thanks, Clare Chu chu@amvax.tn.cornell.edu ------------------------------ Date: Fri, 18 Sep 87 11:13:10 CDT From: dongarra%dasher@anl-mcs.arpa (Jack Dongarra) To: na.dis@score.stanford.edu Subject: Alliant User's Meeting The Alliant Users' Society, ALLUS, is holding its annual meeting October 28 to 30, 1987 at the Royal Sonesta Hotel, New Orleans. Gordon Bell will deliver the keynote address. If you plan to attend the meeting, please make your hotel reservations immediately; space is limited at the hotel. If you need further information, call ALLUS at (617) 486-1450. Jack Dongarra ------------------------------ End of NA Digest ************************** -------