Newsgroups: ut.na Path: utzoo!utgpu!jarvis.csri.toronto.edu!csri.toronto.edu!krj From: krj@csri.toronto.edu (Ken Jackson) Subject: NA Digest Volume 88 : Issue 5 Message-ID: <1988Feb4.094853.4994@jarvis.csri.toronto.edu> Organization: University of Toronto, CSRI Distribution: ut Date: Thu, 4-Feb-88 09:48:53 EST NA Digest Wednesday, February 3, 1988 Volume 88 : Issue 5 This weeks Editor: Cleve Moler Today's Topics: Distribution of Eigenvalues Finding Interior Eigenvalues SIAM Membership List from NETLIB Electronic Address Change for ORNL Paranoia Results Wanted Distribution of NA Net Mailing List Conference on Signal Processing at Warwick 1988 ODE Meeting at Toronto ---------------------------------------------------------------------- >From: Patrick Harker Date: Wed, 27 Jan 88 09:11 EST Subject: Distribution of Eigenvalues To NA Readers: Does anyone know a good reference for the following problem? Given a stochastic nxn matrix and its distribution function, what is the distribution of the eigenvalues and eigenvector. In particular, what is the distribution of the Perron root and the Perron right and left eigenvectors of this matrix. I would greatly appreciate any help in tracking down references in this area. Please respond either through NA-Net or directly to: HARKER@wharton.upenn.edu Thanks. Patrick T. Harker Decision Sciences Department The Wharton School University of Pennsylvania Philadelphia, PA 19104-6366 (215) 898-4715 ------------------------ >From: Lisette de Pillis Date: Mon, 01 Feb 88 16:47:06 NOR Subject: Finding Interior Eigenvalues EIGENVALUE SOLVER NEEDED Matrix A has real non-zero eigenvalues only. Does anyone have an efficient algorithm for finding the two eigenvalues (positive and negative) which are closest to the origin? The algorithm should not involve inverting of the matrix A itself. Many thanks. Reply to na.ldepillis@score.stanford.edu or lisette@nocmi.bitnet ------------------------ >From: Eric Grosse Date: Mon, 1 Feb 88 23:50:12 EST Subject: SIAM Membership List from NETLIB Netlib now lets you search the SIAM membership list. Say mail netlib@anl-mcs.arpa (or mail research!netlib) who is Ed Block and in reply you should get an address and phone number. This is not to be used for mass mailings, etc. (To enforce that, netlib limits the size of replies.) If you're not on the list, send mail to siam@wharton.upenn.edu; they'll be happy to tell you how to join. In the past, netlib looked in a database maintained by Gene Golub and Mark Kent. The new default should be more complete and current, since people on the move usually remember to have their journals follow. Still, Gene's list may have more information, for example about electronic addresses and home phone numbers. To search it instead, say mail netlib who is Block from golub. Problems and suggestions may be directed to Eric Grosse, ehg@att.arpa, research!ehg, 201-582-5828. ------------------------ >From: Bob Ward Date: Thu, 28 Jan 88 08:39:59 EST Subject: Electronic Address Change for ORNL Oak Ridge National Laboratory has changed its DDN host name to conform to the new domain naming convention. ornl-msr.arpa has become msr.epm.ornl.gov. For the next month or so both names will be acceptable. In March the .arpa names will no longer work. Please make appropriate changes in your mail files and aliases. ------------------------ >From: Hugh LaMaster Date: Tue, 2 Feb 88 12:38:31 PST Subject: Paranoia Results Wanted Does anyone have a machine readable copy of the results of of various machines on the paranoia benchmark that they could email me? I understand that I can pay $15 for a floppy, but it is quite difficult to push through small purchases like that in a short time here. Hugh LaMaster, m/s 233-9, UUCP {topaz,lll-crg,ucbvax}! NASA Ames Research Center ames!lamaster Moffett Field, CA 94035 ARPA lamaster@ames.arpa Phone: (415)694-6117 ARPA lamaster@ames.arc.nasa.gov ------------------------ >From: Mark Kent Date: Tue, 2 Feb 88 15:27:38 PST Subject: Distribution of NA Net Mailing List We now have 799 addresses in na.dis (more in the na. facility). Here is how they are distributed: 234 BITNET 71 CSNET (explicit routing) 60 ARPA (ie., address ends in .arpa) 45 GOV 41 COM 38 Stanford 44 UUNET (explicit routing) 24 UK 242 other (some implicitely route through csnet or uunet, most are .edu hosts) --Mark ------------------------ >From: J.G.McWhirter Date: Mon, 1 Feb 88 08:54 Subject: Conference on Signal Processing at Warwick [This message got clobbered in last week's edition.] CALL FOR PAPERS Joint IMA/SMAI International Conference on MATHEMATICS IN SIGNAL PROCESSING University of Warwick December 13-15 1988 Signal Processing represents a major growth area for the application of mathematical concepts and techniques. The aim of this conference is to bring together mathematicians and signal processing experts with a view to exploring the many areas of mutual interest, addressing unresolved mathematical problems in signal processing and identifying fruitful avenues for further research. It is hoped that the meeting will also provide a focal point for attracting more mathematicians into this exciting research field. The conference will comprise six non-overlapping sessions each featuring: (a) five or six spoken papers of a self-contained and partly tutorial nature (b) a related poster session for papers which describe more specific research results and ideas in the area of interest. The main areas of interest will be: 1. Linear Algebra 2. Spectral Estimation /Statistics 3. Finite Algebra 4. Inverse Problems 5. Adaptive Filtering 6. Parallel Processing Distinguished invited speakers include: Dr J Abbiss (UK/USA), Dr B Arambepola (UK), Professor J Besag (UK), Professor R E Blahut (USA), Professor J Cadzow (USA), Dr T Curtis (USA), Dr B Friedlander (USA), Professor S Haykin (Canada), Dr Lars Elden (Sweden), Dr F Luk (USA), Professor E R Pike (UK), Professor J Proakis (USA), Dr Y Robert (France), Dr J Speiser (USA), Dr P Van Dooren (Belgium), Professor J Vandewalle (Belgium) Contributed papers are invited for all sessions and will be accepted on the basis of a 300-500 word summary which should be submitted by April 30th 1988. Authors will be advised of acceptance by June 1st 1988 and final typescripts should be handed in by the date of the conference. The majority of contributed papers will appear in the poster session. All conference papers received on time will be considered, subject to review, for publication in the IMA Conference Proceedings which should be available shortly after the meeting. Suitable topics for presentation include: Spectral estimation; Transform techniques; Least squares methods; Fast algorithms; Number theoretic transforms; Singular value decomposition; Lattice algorithms; Systolic arrays; Image processing; Resolution enhancement; Algebraic coding theory; Fault tolerant algorithms; Array signal processing; Direction estimation and tracking; Applications to speech, radar, sonar, communications, seismology etc.; Members of the Organising Committee: Dr A R Davies (University College of Wales) Dr G Demoment (Ecole Superieure d'Electricite, France) Mr S Hammarling (NAG, Oxford) Dr P J Hargrave (STC Technology Ltd, Harlow) Dr J E Hudson (STC Technology Ltd, Harlow) Miss A Kuntzmann (CISI, France) Dr R Madan (ONR, Washington, USA) Dr T J Shepherd (RSRE Malvern) Dr J G McWhirter (Chairman) (RSRE Malvern) The social programme will include the following: a reception at Warwick Castle, a banquet at Coombe Abbey, a visit to the Royal Shakespeare Theatre at Stratford, an informal "skittles" evening. If you are interested in submitting a paper or attending the conference please write to: The Secretary and Registrar The Institute of Mathematics and its Applications Maitland House, Warrior Square Southend-on-Sea Essex SS1 2JY ------------------------ >From: Ken Jackson Date: Mon, 1 Feb 88 20:20:22 EST Subject: 1988 ODE Meeting at Toronto Final Announcement and Call for Papers for The 1988 Conference on the Numerical Solution of IVPs for ODEs to be held 20-24 June 1988 at the University of Toronto Organized by Professors Wayne Enright and Ken Jackson, Department of Computer Science, University of Toronto, Toronto, Ontario, Canada, M5S 1A4. (enright@csri.toronto.edu or krj@csri.toronto.edu) This is the final announcement and call for papers for The 1988 Conference on the Numerical Solution of Initial-Value Problems for Ordinary Differential Equations to be held 20-24 June 1988 in the Department of Computer Science at the University of Toronto. To facilitate travel arrangements, the conference will close at noon of the final day. The language of the conference will be English. The previous conference in this series was held in Albuquerque in July of 1986, and its programme included talks on both Initial- Value Problems (IVPs) and Boundary-Value Problems (BVPs) for Ordinary Differential Equations (ODEs). Because of the large number of researchers working in these two areas and the modest number of them active in both fields, we chose to emphasize IVPs at the Toronto meeting, although talks related to BVPs with a significant IVP content will not be excluded. There will be both 50-minute invited lectures and 30-minute contributed talks at the Toronto meeting. In addition, there will be ample time for informal discussion with colleagues. We are pleased to announce that the following distinguished researchers have accepted our invitation to speak at the conference: J. C. Butcher, P. Deuflhard, J. Dormand and P. J. Prince, C. W. Gear, R. Jeltsch, S. P. Norsett, and L. F. Shampine. We hope to attain a balance between the practical and theoretical aspects associated with the numerical solution of IVPs for ODEs in the talks at this conference. In part, the invited speakers were chosen with this in mind. We encourage participants to submit (preferably with their conference registration) a title, list of authors and their addresses, and abstract for a 30-minute contributed talk. These should be written in English, single spaced, at most one page in length, and suitable for photo-copying onto 8.5 by 11 inch paper for distribution in the form of a technical report to conference participants. No other form of publication is planned for this meeting. To enable us to inform authors by 1 May 1988 whether their paper has been accepted for presentation at the conference, the deadline for receiving titles and abstracts is 18 March 1988. By holding the meeting on the university campus, we have attempted to keep the conference registration fee to a minimum. However, please note that to take advantage of this, you must register before 13 May 1988. To do so, print and complete the enclosed form and mail it together with your registration fee to the address listed thereon. (Do not e-mail the form to me without payment.) We have reserved a block of reasonably-priced rooms at one of the university residences, a short walk of about 100 meters from the conference site. To reserve a room, print and complete the enclosed form and mail it together with your room deposit to the address listed thereon. (Again, do not e-mail the form to me without payment.) For those who prefer less Spartan accommodation, we have reserved a block of rooms at the Delta Chelsea Inn in downtown Toronto, about one kilometer from the conference site. Please find enclosed directions for making room reservations at the Inn. Although we believe that we have booked a sufficient number of rooms, please reserve early to avoid disappointment. We hope that there will be some funds available to defray the expenses of those with limited or no travel support. To apply for such assistance, include a letter with your registration form detailing the amount of assistance you require from us, and send your completed residence room reservation form to us rather than directly to Residence Services. Preference will be given to those applicants who will speak at the conference. We will hear by about mid March how large a grant we have been awarded. As soon as possible thereafter, we will inform you whether we are able to provide any travel assistance to you. This is the final general announcement for this conference. Further information will be sent to registrants only. Please circulate this announcement to interested colleagues. ================================ CUT HERE =================================== Conference Registration Form The 1988 Conference on the Numerical Solution of IVPs for ODEs To register for the conference, please print this form, complete it and mail it with your remittance to: Prof. K. R. Jackson, Computer Science Dept., University of Toronto, Toronto, Ontario, Canada M5S 1A4. Registration fee (in Canadian dollars): ___ Regular before 13 May 1988 - $50.00 ___ Regular after 13 May 1988 - $75.00 ___ Student before 13 May 1988 - $20.00 ___ Student after 13 May 1988 - $30.00 Please make cheques or bank drafts payable to the University of Toronto in Canadian funds or the U. S. equivalent. Requests for registration fee refunds will be honored until 10 June 1988. Name: _________________________ Organization: __________________________ Address: _______________________________________________________________ City: ______________________ Prov./State. _______________ PC/Zip: ______ Country: ____________________ Telephone: ____________________ ================================ CUT HERE =================================== Residence Accommodation - Whitney Hall - University of Toronto The 1988 Conference on the Numerical Solution of IVPs for ODEs To reserve a residence room in Whitney Hall, please print this form, complete it and mail it with your remittance to: Num. Sol. of IVPs for ODEs Conf., Whitney Hall, 85 St. George St., Toronto, Ontario, Canada M5S 2E5. Please check below the type of room you wish to reserve. (Rates in Canadian dollars include breakfast and local taxes) ___ Single - $35.00 / night ___ Twin (2 single beds) - $23.00 / person / night Name: _________________________ Organization: ____________________________ Address: _________________________________________________________________ City: ______________________ Prov./State. _______________ PC/Zip: ________ Country: ____________________ Telephone: ______________________ Arrival Date: ________________ Departure Date: ________________ Sharing with: _____________________________ Deposit: ___ I have enclosed my deposit cheque for $25.00 per person payable to the University of Toronto in Canadian funds or U. S. equivalent. I prefer to pay by credit card: ___ Visa ___ Mastercard. Card Number: _______________________ Expiry Date: ____________ Signature: ____________________________ Date: ________________ + Reservations must be received in Toronto by 13 May 1988 to allow time for confirmations to be mailed. + Refunds of deposits will be made provided notice of cancellation is received prior to 10 June 1988. + Residence facilities: washrooms are communal; bedding, towels, and soap are provided. + Parking is available at $6.00 per day at 113 St. George St. ================================ CUT HERE =================================== Delta Chelsea Inn 33 Gerrard St. W., Toronto, Ontario, Canada M5G 1Z4. Conference rates (in Canadian dollars): + $88.00 single occupancy; + $103.00 double occupancy per room per night; + no meals included. The hotel recommends that to make reservations you + phone toll free 800-268-1133 in Canada or Continental U. S.; + others should either phone 416-927-1133 or send a Telex to the attention of Annemieke Verheyen at 06218441. + The hotel will acknowledge all Telex reservations by return Telex. To attain the special conference rate, + quote the "Q#" GDODE when making your reservation, and + note that you will attend "The International Conference on ODEs sponsored by the University of Toronto". Also, be sure to state + your full name and address, + type of room required, + dates of arrival and departure, + method of payment. The hotel will hold reserved rooms until 6 p.m. on the scheduled day of arrival. They strongly recommend that you "guarantee" your room for arrival after 6 p.m. by giving a deposit or credit card number. Cancellations must be received prior to 6 p.m. on the scheduled day of arrival to avoid a "no show" charge. --------------------- Reposted by: -- Kenneth R. 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)