🚀 go-pugleaf

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 <HARKER@wharton.upenn.edu>
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 <LISETTE%NOCMI.BITNET@forsythe.stanford.edu>
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 <ehg%research@att.arpa>
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 <ward@ORNL-MSR.ARPA>
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 <lamaster@ames.arc.nasa.gov>
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 <kent@Patience.stanford.edu>
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.<lastname> 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 <JGM%rsre.mod.uk@NSS.Cs.Ucl.AC.UK>
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 <krj%csri.toronto.edu@RELAY.CS.NET>
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)