![]() Roberto S. Costas Santos Hi!I have been interim associate professor of the Universidad de Alcala. Before I have being postdoc fellow at University of California, Santa Barbara, visiting associate professor at College of William and Mary and fellow at Universidad Carlos III de Madrid.Contactrscosa![]() Research interests (MSC 2020): 33Cxx Hypergeometric functions, 33Dxx Basic hypergeometric functions, 33Exx Special functions, 39-XX Difference and functional equations, 42Cxx Nontrigonometric harmonic analysis, 47Axx General theory of linear operators, C05Exx Algebraic combinatorics |