Department of Mathematics and Informatics, University of Catania, Italy.

Lorenzo Milazzo is a Professor at the Department of Mathematics and Computer Science, University of Catania, Italy, since 1997. His main interests are in Graph Theory, Hypergraph, Designs and its applications. He received his PhD Degree (1997) in Mathematics from the University of Federico II of Napoli, Italy. He is one of the initiators of scientific direction related to the colorings of block designs as mixed hypergraphs and the author and co-author over thirty articles in international journals. He participated and was an organizer of a series of major international conferences, workshops and seminars, was visiting professor at Auburn University and Moldova State University.