Recent talks
Numbers&Figures: How factorization properties relate to geometrical shapes. 4 lectures at the workshop "The Art of Factorization in Multiplicative Structures, San Antonio, Texas, May 2007
Factorization in numerical semigroups, Porto (Portugal), March 2008
Lectures on opinion dynamics and related topics. "Center of Excellence for Applications of Mathematics" at the University of Sarajevo (Bosnia and Herzegovina), June 2008