Invited Opening Plenary Talk, Rey Pastor. LIII Reunión Anual de la Unión Matemática Argentina, Río Cuarto, Argentina. October 15, 2003.
	    Title: Análisis Funcional y Física Matemática.
Silver Medal. Sociedad Matemática Mexicana, 2003.
Invited Opening Plenary Talk. XXVI Congreso de la Sociedad Matemática Mexicana. Pachuca, Hidalgo, México. October 13, 2003.
		  Title: Análisis Funcional y Física Matemática.
Member. International Program Committee. Sixth International Conference on Mathematical and Numerical Aspects of Wave Propagation. Jyväskylä, Finland. June 30-July 4, 2003.
Invited Plenary Talk. Pan-American Advanced Studies Institute (PASI) on Partial Differential Equations, Inverse Problems and Nonlinear Analysis. Santiago de Chile. January 6-18, 2003.
		  Title: The Forced Non-Linear Schrödinger Equation with a Potential on the Half-Line.
Associate Member. C.18 Commission on Mathematical Physics. International Union of Pure and Applied Physics. 2003-2005.
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