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<center><font size=+3>TWIN CONFERENCES:</font></center>

<ol>
<li>
<font size=+2><a href="http://www.math-inst.hu/~search">SEARCH AND COMMUNICATION
COMPLEXITY</a></font></li>

<br>Balatonlelle, Hungary, July 1 -- 4, 2000
<li>
<font size=+2>INFORMATION THEORY IN MATHEMATICS</font></li>

<br>Balatonlelle, Hungary, July 4 -- 7, 2000</ol>

<center>
<p><br><b><font size=+1>Important: If you indicated your participation
in the conference,</font></b>
<br><b><font size=+1>but you cannot come, please inform us at your earliest
convenience.</font></b></center>

<p><a href="part.html">List of participants</a>
<p><a href="final.html">Final announcement</a>
<p><a href="0704.html">Preliminary program for July 4</a>
<p><a href="about.html">How to reach Balatonlelle</a>
<p>How to get to Balatonlelle from Sorrento? Please visit <a href="http://bahn.hafas.de/bin/query.exe/en">http://bahn.hafas.de/bin/query.exe/en</a>
<br>&nbsp;
<br>&nbsp;
<br>
<br>
<center>
<p><i><font size=+1>Third Communication</font></i></center>

<p>Dear Colleagues,
<p>As we already announced, the J&aacute;nos Bolyai Mathematical Society
and the Alfr&eacute;d R&eacute;nyi Institute of Mathematics, Hungarian
Academy of Sciences are organizing the above two conferences at the same
site with one day overlapping. The areas of these conferences are closely
related, so we hope that many of you will participate in both of them.
A special aim of the conferences to celebrate the 50th anniversary of the
R&eacute;nyi Institute (earlier Mathematical Institute of the Hungarian
Academy of Sciences).
<br>&nbsp;
<ol>
<li>
<b>Search and communication complexity</b>. Topics to be covered include
(but are not restricted to):</li>

<ul>
<li>
Adaptive and non-adaptive combinatorial search</li>

<li>
Search in presence of a liar</li>

<li>
Combinatorial problems motivated by search</li>

<li>
Search designs (in linear statistics)</li>

<li>
Communication complexity between two partners</li>

<li>
Communication complexity among several partners</li>

<li>
Communication complexity and Boolean functions</li>
</ul>
We are happy to let you know that our <b>invited speakers</b> are: R. Ahlswede,
M. Aigner, N. Alon (maybe), H. Buhrman, R. Impagliazzo, L. Lov&aacute;sz
(maybe), R. Raz, J.N. Strivastava, P. Tetali, P. Beame.
<br>Organizing Committee: G.O.H. Katona (Chair), G. Tardos (Co-Chair),
R. Raz, G. Wiener (Secretary).
<li>
<b>Information theory in mathematics.</b> Topics to be covered include
(but are not restricted to):</li>

<ul>
<li>
Information theory in probability and statistics</li>

<li>
Information theoretical methods in combinatorics</li>

<li>
Information theory and ergodic theory</li>

<li>
Information theory in other areas of mathematics</li>
</ul>
We are happy to let you know that our <b>invited speakers</b> are: R. Ahlswede,
A. Barron, Z. F&uuml;redi, R. Jozsa, M. Keane, J. K&ouml;rner, A. Orlitsky,
Shun-Ichi Amari, L. Tolhuizen, B. Weiss, A. Wyner.
<br>Organizing Committee: I. Csisz&aacute;r (Chair), J. K&ouml;rner (Co-Chair),
L. Gy&ouml;rfi, K. Marton, T. &Eacute;ltet&otilde; (Secretary).</ol>

<p><br>The conferences will be held in Balatonlelle, a resort area at lake
Balaton, about 140 km (90 miles) from Budapest, in a hotel with a private
beach.
<p><b>Registration fee</b>:
<ul>
<li>
for one conference 140 USD if paid before April 30, 2000</li>

<li>
for both conferences 190 USD if paid before April 30, 2000</li>

<li>
for one conference 170 USD if paid after May 1, 2000</li>

<li>
for both conferences 220 USD if paid after May 1, 2000</li>

<li>
for accompanying persons: 45 USD if paid before April 30, 2000</li>

<li>
for accompanying persons: 55 USD if paid after May 1, 2000</li>
</ul>
Please send a certified check / money order made payable to the J. Bolyai
Mathematical Society before the deadline to the following address:
<br>Janos Bolyai Mathematical Society
<br>Budapest, F&otilde; utca 68., 1027 Hungary
<br>Phone / fax: (361) 201-6974
<br>(No personal checks are acceptable.) Payment may also be made by bank
transfer to:
<br>ABN AMRO Bank (Budapest 1853) account number:
<br>10200830-32310243 "TWIN" or
<br>10200830-32310243 "SEARCH" or
<br>10200830-32310243 "INFORMATION"
<p><b>Location and transportation</b>:
<br>The conference will be held in Hotel Giuseppe, K&ouml;zt&aacute;rsas&aacute;g
u. 36, Balatonlelle.
<br>There are frequent trains to Balatonlelle from D&eacute;li p&aacute;lyaudvar
(South Railway Station) in Budapest. There are also a few trains from Keleti
P&aacute;lyaudvar (East Railway Station). The trip takes approximately
2.5 hours. Detailed information about train schedules will be given in
the final announcement. A round trip train ticket from Budapest costs about
USD 15. Information about other travel possibilities (car, etc.) will also
be given in the final announcement.
<p><b>Accommodation</b>:
<br>The rates are the following (per person, per night):
<ol>
<li>
Single: USD 22</li>

<li>
Double (with private bathroom): USD 17</li>

<li>
Apartment (2 double rooms with 1 bathroom): USD 13</li>
</ol>
There is a limited number of single rooms, but participants may choose
to stay in double room alone. These prices include breakfast. Prices are
subject to change depending on the actual exchange rate between USD and
HUF.
<br>There are several restaurants in the center of Balatonlelle. The typical
price of a three-course dinner is between USD 7 and USD 13. It is possible
to have lunch and / or dinner at Hotel Giuseppe for about USD 5.5 each.
(Vegetarian meals are available upon request.) Accommodation and meals
are to be paid upon arrival at the conference registration desk.
<p><b>Abstracts</b>:
<br>The title and abstract of both invited and contributed talks should
be sent preferably in a TeX or LaTeX file by e-mail before April 30, 2000
(possibly together with the registration form). Abstracts can also be sent
by ordinary mail to reach our address before April 30.
<p><b>Technical equipment</b>:
<br>Overhead projectors and small size blackboards will be provided.
<p><b>Registration</b>:
<br>Enclosed please find the <a href="regform.tex">registration form</a>
of the conference, which should be completed and returned to our address
above by April 30, 2000. You can return the form by ordinary mail, e-mail,
or fax.
<br>We are asking you to register as soon as possible since the number
of rooms at the conference site are limited, late participants might have
to stay in other hotels.
<p>The conferences'&nbsp; e-mail addresses are: <tt>search@math-inst.hu</tt>
and <tt>infmath@math-inst.hu</tt>. Please visit our Web pages at <a href="http://www.math-inst.hu/~search">http:
//www.math-inst.hu/~search</a>, <a href="http://www.math-inst.hu/~infmath">http://www.math-inst.hu/~infmath</a>.
<p>A final communication will be mailed in June.
<p>We are looking forward to seeing you in Balatonlelle.
<div align=right><i>The Organizing Committees</i></div>
March 23, 2000
<p>
<hr WIDTH="100%">
<center>
<p><b><font size=+1>REGISTRATION FORM</font></b>
<br><b><font size=+1>INFORMATION THEORY IN MATHEMATICS</font></b></center>

<p><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>You may register now at here or by returning this form before April
30, 2000 by e-mail to <a href="mailto:infmath@math-inst.hu">infmath@math-inst.hu</a>
(Subject: registration) or by mail or fax to
<p>J&Aacute;NOS BOLYAI MATHEMATICAL SOCIETY
<br>Budapest, F&otilde; utca 68., 1027 Hungary
<br>Phone / fax: (361) 201-6974
<br>&nbsp;
<p><form ACTION="/cgi-bin/infmath-conf.cgi" >
<p>Family name:&nbsp;<input TYPE=EDIT NAME=familyname>
<p>First name:&nbsp;<input TYPE=EDIT NAME=firstname>
<p>Sex:<input TYPE=RADIO NAME=sex VALUE="male">Male<input TYPE=RADIO NAME=sex VALUE="female">Female
<p>Affiliation:&nbsp;<input TYPE=EDIT NAME=affil>
<p>Mailing address (if different):&nbsp;<input TYPE=EDIT NAME=addr>
<p>E-mail address:&nbsp;<input TYPE=EDIT NAME=email>
<p>Number of accompanying persons:&nbsp;<input TYPE=EDIT NAME=persons>
<p>I intend to give a talk:&nbsp;<input TYPE=RADIO NAME=lecture VALUE="yes">YES<input TYPE=RADIO NAME=lecture VALUE="no">NO
<p>Title:&nbsp;<input TYPE=EDIT NAME=title>
<p>Key words:&nbsp;<input TYPE=EDIT NAME=keywords>
<p>I enclose my abstract (via e-mail):&nbsp;<input TYPE=RADIO NAME=abstract VALUE="yes">YES<input TYPE=RADIO NAME=abstract VALUE="no">NO
<p>I enclose my paper (via e-mail):&nbsp;<input TYPE=RADIO NAME=paper VALUE="yes">YES<input TYPE=RADIO NAME=paper VALUE="no">NO
<p>What type of accommodation do you choose? (1) or (2) or (3):&nbsp;<input TYPE=EDIT NAME=accom>
<p>With whom would you like to share your room?:&nbsp;<input TYPE=EDIT NAME=share>
<p>I order:&nbsp;<input TYPE=RADIO NAME=board VALUE="full">full board<input TYPE=RADIO NAME=board VALUE="half">half
board
<p>Date of arrival:&nbsp;<input TYPE=EDIT NAME=arrival>
<p>Date of departure:&nbsp;<input TYPE=EDIT NAME=departure>
<p>Special requests:&nbsp;<input TYPE=EDIT NAME=spec>
<p><input TYPE=RESET VALUE="Reset"><input TYPE=SUBMIT VALUE="Submit"></form>
<br>&nbsp;
<p>
<hr WIDTH="100%">
<center>
<p><b><font size=+1>REGISTRATION FORM</font></b>
<br><b><font size=+1>INFORMATION THEORY IN MATHEMATICS</font></b></center>

<p><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<p>You may register now at here or by returning this form before April
30, 2000 by e-mail to <a href="mailto:infmath@math-inst.hu">infmath@math-inst.hu</a>
(Subject: registration) or by mail or fax to
<p>J&Aacute;NOS BOLYAI MATHEMATICAL SOCIETY
<br>Budapest, F&otilde; utca 68., 1027 Hungary
<br>Phone / fax: (361) 201-6974
<br>&nbsp;
<br>&nbsp;
<p>Family name (please print):
<p>First name:
<p>Sex: Male / Female (delete one)
<p>Affiliation:
<p>Mailing address (if different):
<p>E-mail address:
<p>Number of accompanying persons:
<p>I intend to give a talk: YES / NO (delete one)
<p>Title:
<p>Key words:
<p>I enclose my abstract: YES / NO (delete one)
<p>I enclose my paper: YES / NO (delete one)
<p>What type of accommodation do you choose? (1) (2) (3)
<p>With whom would you like to share your room?
<p>I order full board / half board (delete one)
<p>Date of arrival:
<p>Date of departure:
<p>Special requests:
<p>Date:
<p>Signature:
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