Alberto Valli Editor & Author

Professor Alfio Quarteroni, Via Agostino da Lodi, 7 26900 Lodi, ITALY. Tel: +39 371 410148; Fax: +39 2399 4588; email: [email protected] Professor Alberto Valli, Department of Mathematics, University of Trento, 38050 Povo (TN), ITALY. Tel: +39 461 881580; Fax: +39 461 881624; email: [email protected]