Professor, Department of Mathematics
University of Illinois at Urbana-Champaign
- Seminar, University of London, England, May, 1960
- Symposium on nonlinear problems, University of Wisconsin (Madison), April, 1962
- Séminaire de mathématiques supérieures, Summer 1965, Université de Montréal (in French)
- Seminar, University of Chicago, November, 1966
- AMS summer institute on global analysis, Berkeley, July 1-26, 1968
- Conference on equations of evolution and nonlinear semigroups, University of Kentucky, May 29-31, 1969
- Séminaire Lions-Schwartz, Université de Paris, June, 1969 (in French)
- Conference on evolution equations and functional analysis, University of Kansas, June 28-July18, 1970
- AMS summer institute on partial differential equations, Berkeley, August 9-27, 1971
- Colloquium on analysis, Universidade Federal do Rio de Janeiro, August 15-24, 1972
- Seminars, University of Maryland, 1972-1973
- Colloquium, University of Connecticut, April, 1973
- Special session on partial differential equations, AMS meeting, University of Minnesota, November, 1973
- Special session on singular Cauchy problems, AMS meeting, Washington, D.C., January, 1975
- Lectures, CIMAS, UNAM, Mexico City, July, 1975 (in Spanish)
- Seminar, University of Chicago, May, 1976
- Colloquium, University of Texas, Austin, January, 1980
- Conference on spectral theory of differential equations, University of Alabama, Birmingham, March 26-28, 1981
- Seminar, University of Sheffield, England, April, 1981
- Seminar, Oxford University, England, May, 1981
- Seminar, University of Groningen, Holland, May, 1981
- Seminar, Math. Centrum, Amsterdam, Holland, May, 1981
- Seminar, Physics Dept., Université Languedoc, Monpellier, France, May, 1981 (in French)
- Seminars, Cornell University, October, 1981 (applied mathematics and mechanics)
- International conference on differential equations, University of Alabama, Birmingham, March 21-26, 1983
- Conference on inverse scattering, University of Tulsa, May 16-18, 1983
- Workshop on inverse problems and signal processing, Cornell University, July 25-26, 1983
- Colloquium talks (mathematics, physics, and applied mathematics), University of the Witwatersrand, Johannesburg, South Africa, May-July, 1984
- Colloquium talks, University of Pretoria, South Africa, June 8-9, 1984
- Colloquium talks, University of Cape Town, South Africa, June 14-16, 1984
- Colloquium talk, Stellenbosch University, South Africa, June 15, 1984
- Conference on differential equations in Banach spaces, University of Bologna, Italy, July 2-5, 1985
- Seminar, University of Firenze (Florence), Italy, July 5, 1985
- Seminar, University of Pavia, Italy, July 9, 1985
- Workshop and lectures, Electrical engineering department, Stanford University, July 25-31, 1985
- Special session on analytic theory of differential equations, AMS meeting, New Orleans, January, 1986
- Conference on differential equations, Oakland University, Michigan, May 17, 1986
- Seminars, University of Delaware, March 24-25, 1986
- Colloquium, Howard University, Washington, D.C., March 26, 1986
- Bay area seminar on inverse problems, Stanford University, July 31-August 1, 1986
- Colloquium, Howard University, Washington, D.C., March 19, 1987
- Colloquium, US Naval Academy, Annapolis, Maryland, March 20, 1987
- Howard symposium on nonlinear semigroups, partial differential equations, and attractors, Howard University, Washington, D.C., August 3-7, 1987
- International conference on differential equations, Ohio University, March 21-25, 1988
- Workshop on nonlinear evolution equations, integrability, and spectral methods, Como, Italy, July 3-15, 1988
- Seminar, Indian Statistical Institute, New Delhi, July 20, 1988
- L.K. Hua symposium, Qinghua University, Beijing, China, August 1-7, 1988
- Seminars, Academia Sinica, Taipei, August-September, 1988
- Seminar, National Chiao Tung University, Taiwan, September 14, 1988
- Seminars, Osaka Univesity, September 26-27, 1988
- Seminars and colloquium, Hiroshima University, October, 1988
- Conference on evolution equations, RIMS, Kyoto, October 24-26, 1988
- Seminar, Chiba University, Tokyo, October 27, 1988
- Seminar, Waseda University, Tokyo, October 28, 1988
- Seminar, IMA, University of Minnesota, December 5, 1988
- Oberwolfach meeting on differential and integral equations, Oberwolfach, Germany, February 4-10, 1990
- Special session on function theoretic methods in differential equations, AMS meetings Louisville, Kentucky, Jan. 17-20, 1990
- AMS summer research conference, Amherst, MA, June 7-13, 1990
- Workshop on nonlinear evolution equations and dynamical systems, Dubna/Moscow, Russia, July 16-26, 1990
- Colloquium, University of Kansas, April, 1992
- Workshop on nonlinear evolution equations and dynamical systems, Dubna/Moscow, July 6-17, 1992
- First world congress of nonlinear analysts, Tampa, Florida, August 19-26, 1992
- Workshop on nonlinear evolution equations and dynamical systems, Gallipoli/Lecce, Italy, September 3-12, 1993
- International congress of mathematical physics (and satellite colloquium on strings, topology, and integrable models), Paris, July 18-29, 1994 (short talk)
- Workshop on nonlinear evolution equations and dynamical systems, Los Alamos, NM, September 11-18, 1994
- Interdisciplinary workshop on nonlinear physics, Gallipoli, Italy, June 29 - July 7, 1995
- Second world congress of nonlinear analysts, Athens, Greece, July 10-17, 1996
- Seminar, Bogazici University, Istanbul, Turkey, July 23, 1996
- Conference on generalized analytic functions, Graz, Austria, Jan. 6-10, 1997
- International ISAAC Conference, University of Delaware, June 2-6, 1997
- Supersymmetry and integrable models, UIC, Chicago, June 12-14, 1997
- Integrability: Seiberg-Witten and Whitham equations, University of Edinburgh, Sept. 14-19, 1998
- Special session on solitons, integrable systems, and singular limits, AMS-AusMS joint meetings, Melbourne, Australia, 11-16 July, 1999
- I have also given numerous short talks at AMS meetings in various US cities plus short talks at the International Congress of Mathematicians meetings in Moscow, 1966, Kyoto, 1990, and Berlin, 1998. I was a participant at the Strings 97 conference in Amsterdam, June 16-21, 1997, at the Strings 98 conference at UCSB, Jun 22-27, 1998, at the Fundamental Problems in Quantum Theory conference, UMBC, Baltimore, Aug 9-13, 1999, and at the International Congress on Mathematics Physics, London, July 17-22, 2000.
- Two talks on quantum groups, Inter. ISAAC Congress, Berlin, 20-25 Aug., 2001.
- AMRTMA Conference, Fréjus, France, June 18-22, 2002.
- ISAAC conference on complex analysis, differential equations, etc., Yerevan, Armenia, Sept. 17-22, 2002.
- International ISAAC Congress, Toronto, Aug. 11-16, 2003.
- International Conf. "Symmetry in nonlinear math. physics," Kiev, Ukraine, June 23-29, 2003.
- Colloquium, Southern Illinois Univ., April, 2004.
- International symposium on quantum theory and symmetries, Varna, Bulgaria, Aug. 15-21, 2005.
- Nonlinear physics, IV, Gallipoli (Lecce), Italy, June 22-July 1, 2006.
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