Second Announcement Paul Erdos and his Mathematics Budapest, July 4-11, 1999 The Hungarian Academy of Sciences, the Janos Bolyai Mathematical Society, The Eotvos Lorand University of Budapest and The Alfred Renyi Mathematical Institute of The Hungarian Academy of Sciences, organize a conference dedicated to the memory of Paul Erdos which will be held July 4 - 11, 1999, in Budapest, Hungary. The topics of the conference include the basic fields to which Paul Erdos contributed: Analysis (including Ergodic Theory), Combinatorics (including Combinatorial Algebra, Combinatorial Geometry and Theoretical Computer Science), Number Theory, Probability Theory, and Set Theory among others. The main goal of the conference is to explore Paul Erdos' wide ranging contributions to mathematics, to bring us closer to an understanding of his rich oeuvre, and to attempt to survey the trends of development originating in his work. This symposium is a satellite conference to the UNESCO-ICSU World Conference on Science to be held 26 June - 1 July 1999, in Budapest, Hungary. Scientific Program The program will include the following types of lectures and presentations. Plenary lectures: These will be expository lectures on particular areas of Paul Erdos' work. We emphasize that these talks will be addressed to a broad mathematical audience. Their aim is to put the theorems and conjectures of Paul Erdos in a historical context. The plenary speakers will be N. Alon (Israel), B. Bollobas (USA, England), P. Borwein (Canada), P. D.T.A. Elliott (USA), R. L. Graham (USA), A. Hajnal (Hungary, USA), P. Komjath (Hungary), D. S. Lubinsky (South Africa), C. Pomerance (USA), I. Z. Ruzsa (Hungary), M. Simonovits (Hungary) and J. Spencer (USA). Parallel sessions: There will be five parallel sessions in the fields listed above consisting of invited lectures of 30 minutes duration each. The emphasis will be on the influence of Paul Erdos' work. We had to put a limit on the number of lectures, but we gladly offer participants the opportunity to contribute to the poster session, the volume of short communications or to mini workshops described below. Poster Session: All participants may present their work in scheduled poster sessions provided they submit an abstract by March 31, 1999. An example for posters (it is a PostScript file) may be obtained from the conference's homepage: http://www.math-inst.hu/~erdos99 Volume of Short Communications: All participants are invited to submit an extended abstract [maximum: 3 pages] that is expected to be related to the mathematics of Paul Erdos. These will be refereed and the volume will be distributed at the beginning of the conference. The deadline for submitting the extended abstracts is also March 31, 1999. Mini-Workshops: For small groups that wish to get together for specialized discussions we shall be happy to arrange the appropriate facilities. Conference volumes The Volume of Short Communications (invited and contributed, as well) will be distributed at the conference and its price is included in the registration fee. We will publish the invited papers in two different ways. The papers containing mainly new results in Combinatorics and related areas will appear in a special issue of Combinatorica. We do not plan to publish research papers in other areas, e.g. Analysis, Analytic Number Theory, Set Theory. On the other hand, survey type papers of the invited speakers (in any area of the conference) will be collected in one or more volumes of the Bolyai Society Mathematical Studies (published by the Janos Bolyai Mathematical Society). This series started with the volumes "Erdos is 80 I, II" and has already reached 10 volumes. The program starts as follows: 4 July, Sunday 14.00 - 18.00 Registration 18.30 - 20.00 Welcome Party 5 July, Monday 9.00 - 10.00 Opening session 10.30 - 13.00 Plenary sessions Technical Equipment Overhead projectors, tape recorders and video equipment will be provided. Please indicate extra needs on your Registration Form. We greatfully acknowledge the support of the following sponsors: -Arany Janos Foundation -DIMACS -DIMANET-PECO -DIMATIA -European Mathematical Society (EMS) -Foundation for the Modernization of Hungarian Education (KOMA) -Hungarian Academy of Sciences -Hungarian National Committee for Technical Development (OMFB) -Hungarian National Foundation for Scientific Research (OTKA) -International Mathematical Union (IMU) -Number Theory Foundation -Pazmany-Eotvos Foundation (ELTE) -Soros Foundation Registration and Accommodation Registration fee: $160 if paid in full by April 1st, $250 afterwards. Registration fee for accompanying persons is $80 until April 1st, $100 afterwards. The registration fee includes - Admission to scientific sessions - Conference Program, Volume of Short Communications and Abstracts - Welcome Party - Refreshments - Banquet - Conference Excursion The registration fee for accompanying persons includes -Welcome party -Banquet -Conference Excursion There is a possibility to buy additional tickets for the Welcome Party, the Banquet and the Excursion, separately. Accommodation Hotel accommodation can be reserved at rates listed on the enclosed Hotel Reservation Form. Please complete and return this form together with your hotel deposit not later than 1 April, 1999. A deposit of one (1) night will be required to secure your hotel reservation. For methods of payment see below. The Organizing Secretariat reserves the right to book you into a similar hotel should the requested hotel be fully booked. A written confirmation will be sent to you after receiving your deposit. The outstanding balance should be paid directly at the registration desk. Advance payment for registration and hotel can be made by credit card, bank transfer or certified/cashier check (unfortunately not by personal check). By credit card Please give the card number, card type (e.g. Visa, Mastercard, etc.) and the expiration date. By bank transfer Bank name: Hungarian Foreign Trade Bank Ltd. Bank address: 1051 Budapest, Szent Istvan ter 11. Hungary Swift code: MKKBHUHB Account number for participants: MTA "Tudomany" 501-00047-2100-4019 PEM'99 The name of the participant should be clearly stated on the bank payment. Please note that the Organizing Secretariat will not accept bank charges; bank charges are at the sender's expense. By certified/guaranteed payment cheque The cheque, which should state the participant's name clearly, should be enclosed with the completed Registration Form and made payable to: PEM '99, Office for International Cooperation, HAS, 1051 Budapest, Nador u. 7., Hungary. Personal or company cheques cannot be accepted. During the Congress major credit cards will be accepted at the Registration Desk. Cancellation and refunds Cancellation of the participation and hotel reservation can only be made in writing to the Organizing Secretariat. Full refunds of the registration fee will be made before 31 May, 1999, while 80% can be refunded between 31 May and 15 June, 1999. No refunds will be made after 15 June. Unfortunately, we cannot return hotel deposits in case of cancellation. You are kindly asked to return, via ordinary mail, fax, or e-mail (to: khajos@office.mta.hu), the enclosed Registration and Hotel Reservation Forms together with a copy of the bank transfer document (registration fee + one night hotel deposit) to the Organizing Secretariat not later than 1 April, 1999. These forms can also be downloaded from http://www.math-inst.hu/~erdos99 in PostScript, MSWord, LaTeX or ASCII text format. If you send your registration via e-mail, please use the ASCII TEXT FORMAT ONLY. Deadlines - all deadlines are as "postmarked by" March 31st, 1999 - deadline for the submission of Abstracts May 15, 1999 - confirmation of the acceptance of Abstracts by the Selection Committee April 1, 1999 - registration with $160 registration fee April 1, 1999 - hotel reservation. After April 1st we cannot guarantee the availability of hotel rooms of chosen comfort level. (We have deadlines towards the hotels.) GENERAL INFORMATION Conference site: Hungarian Academy of Sciences 1051 Budapest Roosevelt ter 9. Transfer from the airport to the city The city can be easily reached by Airport Minibus Service. These minibuses are comfortable and they take you to any address in the city from Airport Terminals 1 and 2. Price per person is HUF 1.500 (approximately 6-8 USD). This door-to-door minibus service is much more reasonably priced than taxis. Local Transportation in Budapest Buses, trams and the metro (subway) run without conductors. Tickets must be purchased in advance at your hotel or at metro stations. Each ticket (except daily and weekly tickets) is valid for one ride only and must be punched on the bus, tram or trolley-bus or stamped at the entrance to the metro. The cost of a one-way ticket is HUF 90. It is suggested to buy a weekly ticket, which costs about 1700 HUF. There are also daily tickets available, and cheaper tickets for short travels on metro. Passport and Visa Visitors to Hungary must possess a valid passport. Entry visas are not required for citizens of most European countries, USA, Canada, South Africa, Israel and Mexico. Entry visas are required for citizens of Australia, Brazil, Cambodia, China, Columbia, Egypt, India, Iran, Libya, Marocco, New Zeland, North-Korea, Pakistan, Phillippines, Syria, Taiwan, Thailand, Turkey, Venezuela, Yemen, among others. You are kindly requested to inquire at the Hungarian Embassy or Consulate in your country. Currency, Exchange, Credit cards The official currency in Hungary is the Hungarian Forint (HUF), the exchange rate is 1 USD = 225 HUF (February 1999). Foreign currency can be brought into Hungary without restrictions. Currency exchange is available at the airport, at major banks and hotels. Banking hours in the city are 09.00 - 14.00, Monday to Friday. Automatic teller machines are available throughout the city and accept most major credit and bank cards (MAC, CIRRUS, PLUS, etc.). Cheques and major credit cards are accepted in hotels, larger restaurants, some department stores and shops but you should ask before ordering a service. There is no money exchange at the conference registration desk. Weather and Clothing The climate in Hungary in July is usually sunny with an average daily temperature of 25 C (77 Fahrenheit). Showers may occur but normally humidity is not high. However, it is not totally unlikely that temperatures may stay only in the teens. Informal dress is appropriate for all events. Electricity supply In Hungary electricity is supplied at 220 V, 50 Hz. The 2-pin plug is different from the one used in some other countries, but same as in for example Germany. Letter of Invitation Upon request the Organizing Secretariat will issue personal invitations to those wishing to participate in the congress. It should be understood that the exclusive purpose of such invitations is to assist participants in obtaining funds or visas. It is not a commitment of the Organizing Committee to provide any financial support. Budapest, the Host City The twin cities of Buda and Pest are situated opposite each other on the banks of the Danube. Buda, on the right bank is the more ancient of the two, going back in her origins to Roman times and beyond. The baroque Royal Palace - looking down to the plain where the city of Pest sprawls - is the fourth or fifth regal habitat on the hill. Pest, the more modern, is the home of the country's political life and the seat of government. There, in the heart of the administration district, stands the magnificent neo-gothic building of the Houses of Parliament and just a couple of blocks away the central building of the Hungarian Academy of Sciences, next to the oldest bridge of the city. Pest, which stretches to the East and to the South, is also the center of business, banking and industry of the country. Do not miss the busy shopping street of "Vaci utca" with its elegant shops and cafes. Hilly Buda, with her famous museums on Castle Hill and the winding medieval streets of the old "burgher town", offering romantic walks and enchanting views of bustling Pest, is also renowned for the traditional Hungarian cuisine to be tasted in some of the country's finest restaurants. Another famous feature of Budapest are its thermal baths. They were introduced by the Turks in the 16th century. There are nice swimming pools, as well, so don't forget your swimming suit at home! Scientific correspondence should be addressed to the organizing committee: V.T. Sos (Committee Chair), A. Sali (secretary), L. Babai, B. Bollobas, A. Hajnal, G.O.H. Katona, M. Laczkovich, L. Lovasz, P. Revesz, A. Sarkozy, M. Simonovits, J. Szabados. URL: http://www.math-inst.hu/~erdos99 e-mail: erdos99@math-inst.hu fax: (+36-1-)317-7166 Renyi Mathematical Institute of HAS Budapest P.O.B. 127 H-1364 Hungary All other correspondence, including registration, hotel reservation, etc should be addressed to the Organazing Secretariat: Ms Katalin Hajos Office for International Cooperation Hungarian Academy of Sciences Budapest, Nador u.7. H-1051 Hungary tel/fax: (+36-1-)317-2840 e-mail: khajos@office.mta.hu ________________________________________________________________ HOTEL RESERVATION FORM Paul Erdős and his Mathematics July 4- 11, 1999 Budapest, Hungary ____________________________________________________________ NAME:...................................................................... Ms /Mr Family Name First Name(s) PHONE: country code:.... area code:.... number:......................... FAX : country code: ....area code: ....number:......................... E-MAIL:......................................................... Please tick where appropriate: ____Single ____Double Date of arrival: .../ 07 /99 Date of departure: .../07 /99 Number of nights in hotel: .. Name of person(s) sharing room:................................. .............................................. Hotel deposit paid: ............................................ Method of payment:.............................................. Remarks:........................................................ ................................................................ Please tick at the required hotel category : HOTEL single room double room USD/night USD/ night * * * * * ____ Intercontinental, Hyatt 150 180 * * * * ____ Mercure, Hungaria, Helia 110 140 * * * ____ Orion, Bara, Griff 80 100 * * ____ Hill, Bolyai 40 50 * ____ Student hostel 20 30 Hotel rooms are to be reserved by sending a deposit for one night before April 15, 1999. Please note that reservations will be confirmed only after receipt of your hotel deposit. Hotel room rates are per night and include breakfast and all taxes. Final payments can be made by bank transfer or at the Registration Desk. Additional charges (e.g. mini-bar, laundry, telephone calls etc.) are to be paid to the hotel upon check-out. Date:____________________ Signature:______________________________________________________ ________________________________________________________________ Please complete and sign this form and send along with the proof of payments before April 15, 1999 to the Office for International Cooperation of the Hungarian Academy of Sciences H-1051 Budapest, Nador u.7. Tel: + 36 (1) 317 6215 Fax: + 36 (1) 317 2840 or 317 6215 ________________________________________________________________ REGISTRATION FORM Paul Erdős and His Mathematics July 4-11, 1999 Budapest, Hungary ____________________________________________________________ Please print or type NAME:........................................................... 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I enclose the following proof of payment : Registration fee:............................................USD Accompanying person's registration fee:......................USD Hotel deposit................................................USD _____________________USD (Please note that all fees must be paid in USD.) Credit Card: ____Visa ____MasterCard ____Other:________________ Card Number:___________________________________ Expiration Date:______________________________ Date: Signature:_________________________________ ____________________________________________________________________ Please complete and sign this form and send along with the proof of payments before April 15, 1999 to the Office for International Cooperation of the Hungarian Academy of Sciences H-1051 Budapest, Nador u.7. Tel: + 36 (1) 317 6215 Fax: + 36 (1) 317 2840 or 317 6215 e-mail: khajos@office.mta.hu