The 11th Workshop on Nonlinear Evolution Equations and Dynamical Systems (NEEDS) will be held at the Orhodox Academy of Crete (OAK) in Kolymbari near Chania, Crete, Greece, from Wednesday 18 June, 1997 (arrival day) to Saturday 28 June, 1997 (departure day). The previous 10 Workshops of this series have taken place in the same venue in Crete in 1980, 1983 and 1989; in Gallipoli (Italy) in 1985, 1991 and 1993; in Balaruc-les-Bains (France) in 1987; in Dubna (Russia) in 1990 and 1992; in Los Alamos (USA) in 1994. Information on these 10 Workshops have been reported in: 1. Physica 2D, 545-548 (1981); 2. Physica 11D, 389-391 (1984); 3. Physica 29D, 431-436 (1988); 4. Inverse Problems 3, 775- 779 (1987) and Nonlinear Evolutions, edited by J. J. P. Leon, World Scientific, 1988; 5. Nonlinear Evolution Equations and Dynamical Systems, edited by S. Carillo and O. Ragnisco, Research Reports in Physics, Springer, 1990; 6. Inverse Problems 7, 167-173 (1991) and Nonlinear Evolution Equations and Dynamical Systems, NEEDS '90, edited by V. G. Makhankov and O. K. Pashaev, Research Reports in Physics, Springer, 1991; 7. Nonlinear Evolution Equations and Dynamical Systems, edited by M. Boiti, L. Martina and F. Pempinelli, World Scientific, 1992; 8. Nonlinear Evolution Equations & Dynamical Systems, NEEDS '92, edited by V. Makhankov, I. Puzynin and O. Pashaev, World Scientific, 1993;9.two issues of Theor. Math. Phys. 99,no 2,3, 495-802 (1994); 10. Nonlinear Evolution Equations & Dynamical Systems, NEEDS '94, edited by V. G. Makhankov, A. R. Bishop and D. D. Holm, World Scientific, 1995. The Workshop will, as usual, be interdisciplinary in character, focussing on integrable, near integrable and non integrable dynamical systems (nonlinear ODEs, PDEs, integral equations, maps, automata, etc.), both on their theory and on applications in classical and quantum physics (condensed matter, fluids, plasmas, elementary particles, statistical mechanics, etc.) and in other fields (oceanography, biophysics, population dynamics, etc.). The methods discussed will range from pure mathematics and numerical computations to applicable theories and experiments. The participants will be accomodated, in double occupancy rooms with private facilities, in the (recently much enlarged) premises of OAK (located in a beautiful spot just by the sea), where all meals will also be taken. This arrangement will provide ample opportunities for personal interactions among the participants. The official program will occupy 5 hours per day (0090-1030, 1045-1145; 1530-1700, 1715-1815: typically, 10 half-hour slots); hence we envisage altogether some 80 presentations, with one day (probably Tuesday 24 June) devoted to an excursion (Samaria Gorges or Eraklion). The number of participants shall not exceed 100. Participation is open to qualified scientists who have worked on these topics; young researchers are welcome; admission will be on a first-come first-served basis. The cost of participation shall consist of a flat all-inclusive rate (of the order of US$ 700 [+ US$ 200 for single-occupancy rooms]; exact figures to be announced later), which shall include a registration fee of US$ 100 and will cover accomodation, meals, excursion, documentation (each participant will be asked to provide a short CV, to be distributed to all participants, so as to facilitate the identification of common interests). This flat rate might eventually be (partly or completely) waived for qualified participants who have no funds to support their participation, if the applications for financial support of the Workshop, now submitted to various funding agencies, will be successfull. Limited accomodations for accompanying persons will also be available (flat all inclusive rate: US$ 600). --- To apply for participation (or for information), fax or e-mail to: M. BRUSCHI, Dipartimento di Fisica, Universita' di Roma "La Sapienza", p. Aldo Moro, I-00185 ROMA: fax: **39-6-4463158, E- Mail: bruschi@roma1.infn.it (CC: bruma@pcg.telpress.it) --- and also please mail hard copy, to: F. Calogero, Dipartimento di Fisica, Universita' di Roma "La Sapienza", p. Aldo Moro, I-00185 ROMA as well as to: A. Verganelakis, Physics Department,Nuclear Research Center DEMOKRITOS, 15310 AGHIA PARASKEVI, Attikis (Greece), tel/fax: **30-1-6522647. F. Calogero and A. Verganelakis "This Workshop will be organized in accordance with the IUPAP principles as stated in the ICSU Document "Universality of Science" (6th edition, 1989) regarding the free circulation of scientists for international purposes. In particular, no bona fide scientist will be escluded from participation on the grounds of national origin, nationality, or political considerations."

Nonlinear Evolution Equations and Dynamical Systems (NEEDS) A Series of International Meetings: Brief Description This Series of international meetings began in 1980. The original motivation was twofold: (i) to take stock of, and contribute to, the major development in theoretical and mathematical physics, in applied mathematics, in "pure" mathematics and in several applicative domains, associated with the discovery in the 70s of many (classical and quantal) integrable systems and of various techniques for their solution (the "soliton" revolution); (ii) to foster exchanges among scientists from "the West" and "the East" (including, in the latter case, the former Soviet Union). The second goal appeared particularly topical, inasmuch as the contributions to this research field by scientists in the former Soviet Union were absolutely outstanding, yet many of those who had provided and were producing such contributions had enormous difficulties in making contact with their colleagues living elsewhere who were working in the same area -- and, of course, viceversa. This Series of meetings was quite successfull in fulfilling both goals. (i) Through the 80s and the 90s, when this field of science has continued to witness a major development -- possibly the most interesting and vital development in theoretical and mathematical physics and applied mathematics of this half century -- these international meetings have significantly fostered the flourishing of this research area. (ii) The participation of scientists from the former Soviet Union, East Europe, China -- in addition to scientists from Western Europe, the USA, Japan, Canada, Australia,... -- has been substantial, already in the early years when traveling to "the West" was very difficult for many scientists, especially from the former Soviet Union, who were not adequately attuned to "politically correct" views and behaviours; in several cases, the NEEDS meetings have provided the first opportunity for outstanding researchers from the former Soviet Union to travel abroad, beyond the Iron Curtain. Both above statements are documented by the lists of outstanding participants in these Series of meetings, which can be gleaned -- together with an indication of the topics covered -- from the various reports on these meetings quoted in the enclosed announcement of NEEDS '97 (the next meeting of this Series). A (very partial - yet sufficient to demonstrate the inclusion of most of the leading scholars in this area) List of past participants includes the following (with apologies to the many not listed): M. Ablowitz, V. A. Andreev, N. Asano, M. Bartuccelli, D. Bessis, Yu. M. Berezanski, A. Bishop, M. Boiti, Guo Boling, T. Bountis, M. Bruschi, R. Bullough, F. Calogero, R. Camassa, D. Campbell, H. Capel, G. Casati, P. Caudrey, H. H. Chen, D. G. Chudnovsky, G. V. Chudnovsky, P. Clarkson, R. Conte, J. Corones, A. D. D. Craik, A. Degasperis, H. de Vega, R. K. Dodd, A. Doliwa, I. Ya. Dorfman, V. S. Dryuma, B. A. Dubrovin, J. Eilbeck, F. Estabrook, L. D. Faddeev, A. Fokas, A. Fordy, B. Fuchssteiner, A. Galindo, V. S. Gerdjikov, B. Getmanov, J. Gibbon, J. Gibbons, B. Grammatikos, J. Greene, P. G. Grinevich, A. M. Grundland, F. Guil Guerrero, G. M. Henkin, J. Hietarinta, D. Holm, N. H. Ibragimov, A. R. Its, M. Jimbo, D. Kaup, M. Kruskal, Y. Kodama, B. G. Konopelchenko, K. Konno, V. E. Korepin, I. Krichever, P. P. Kulish, A. Kundu, B. Kupershmidt, E. A. Kuznetsov, M. Lakshmanan, D. R. Lebedev, J. Leon, D. Levi, B. M. Levitan, A. N. Leznov, F. Magri, S. V. Manakov, V. G. Makhankov, V. A. Marchenko, L. Martinez Alonso, E. M. Maslov, V. P. Maslov, Y. Matsuno, V. B. Matveev, D. McLaughlin, V. K. Melnikov, A. V. Mikhailov, T. Miwa, H. Morris, A. Nachman, R. Newton, F. Nijhoff, J. Nimmo, S. P. Novikov, Y. Nutku, M. A. Olshanetsky, A. Yu. Orlov, A. Osborne, A. M. Perelomov, F. Pempinelli, I. Percival, F. Pirani, A. Pogrebkov, M. C. Polivanov, G. Quispel, A. Ranada, O. Ragnisco, A. Ramani, A. G. Reiman, C. Rogers, P. Sabatier, P. Santini, M. Sato, J. Satsuma, M. V. Saveliev, H. Segur, M. A. Semenov-Tian-Shansky, A. B. Shabat, E. K. Sklyanin, Y. Smorodinski, V. V. Sokolov, S. Svinolupov, L. Takhtajan, A. P. Veselov, G. Z. Tu, M. Wadati, H. Wahlquist, P. Winternitz, S. Wojciechowski, T. I. Yamilov, Li Yishen, J. Zagrodinsky, V. E. Zakharov. Any of them could be consulted as a referee on the usefulness of these meetings. And there always were a substantial number of younger participants, from Western Europe (especially in the seven meetings held in Europe), from the USA (especially in the meeting held in Los Alamos) and from Russia (especially in the two meetings held in Dubna). It is now planned to re-launch this Series of meetings, going back to the original venue, also to take advantage of a new building there which provides particularly convenient accomodation and meeting facilities. The idea is to convene a Workshop there every second year: the next one is planned for the summer of 1997 (see enclosed announcement), the next one for the summer 1999. It is expected that these Workshops will follow the same pattern of the previous ones of this Series, and will be similarly successful.