- December 2, 2005; 4:00 pm; Room C-356; Valentin Keyantuo; Some Aspects of the Exponential Function.
- October 7, 2005; 4:00 pm; Room A-211; María Eglée Pérez; The Role of Statistics in Clinical Trials II.
- September 30, 2005; 4:00 pm; Room C-356; María Eglée Pérez; The Role of Statistics in Clinical Trials.
- September 16, 2005; 4:00 pm; Room C-356; Mahamadi Warma (University of Puerto Rico, Río Piedras); The Dirichlet Problem.
- September 2, 2005; 4:00 pm; Room C-356; Carlos Lizama (University of Santiago of Chile); Ecuaciones Integrales de Fredholm: Una Introducción.
- Wednesday, June 1, 2005; 10:30 am – 12:00 pm; Room: NCNII C-236; Dr. Jerome A. Goldstein (The University of Memphis); The Evolution of the Exponential Function in Modern Applied Mathematics.
- May 20, 2005; 1:00 pm; Auditorium no. 1, College of Education; Gloria María Isidro (University of Puerto Rico); Matemáticas Adaptadas para Personas Ciegas.
- March 30, 2005; 10:30 am; room NCNII C-211; Geraldo de Souza (University of Auburn, Alabama), What is Wavelets?.
- March 18, 2005; 2:00 pm; room NCNII C-356; Peter Horak (University of Washington at Tacoma); Applications of Graph Theory to Other Parts of Mathematics.
- March 16, 2005; 10:30 am; room NCNII C-356; Francis Castro, Discusión sobre un Problema Famoso en la Teoría de Números.
- March 11, 2005; 2:00 pm; room NCNII C-356; José La Luz (UPR); Variedades Diferenciales y el Teorema del Indice.
- March 4, 2005; 2:00 pm; room NCNII A-226; Leon C. Moore (SUNY at Stony Brook, Department of Physiology & Biophysics); TGF Signal Generation: Insights from Mathematical Modeling.
- February 23, 2005; 10:30 am; room NCNII C-209; Luis R. Pericchi, Espectaculares Perspectivas de Trabajo para un Egresado en Matemáticas.
- February 11, 2005; 2:00 pm; room NCNII C-356; Italo Dejter (UPR); Great Circle Challenge and Odd Graphs.
- February 4, 2005; 2:00 pm; room NCNII C-356; Guoliang Yu (Vanderbilt University, Department of Mathematics); Large Scale versus Small Scale Geometry.