Algebraic Combinatorics and Computer Science: A Tribute to Gian-Carlo Rota

This volume consists of a selection of surveys and research papers on Algebraic Combinatorics and Theoretical Computer Science given during the VI Italian Congress on Algebraic Combinatorics held in October 199 9 in Maratea (Italy). The work is a tribute to Giancarlo Rota and it i s the result of a unique cooperation of leading researchers, deeply in fluenced by Rota's thought. The essays and research papers deal with r ecent developments in maths, which are particularly interesting both f or mathematicians and graduate students. Among the authors: Edoardo Ve sentini, Martin Aigner, Dominique Perrin.