Kragujevac J. Math. 24 (2002) 7-18.
Andrea Ossicini1, Stefano
Ossicini2
and Miodrag M. Spalevic3
1FINSIEL S.p.A. - Gruppo TELECOM - Italia,
Via Carciano 4, 00131 Roma, Italy.
(e-mail: a.ossicini@finsiel.it)
2INFM-S 3 e Dipartimento di Scienze e
Metodi dell'Ingegneria,
Università di Modena e Reggio Emilia, Via Allegri 13, 42100 Reggio Emilia, Italy.
(e-mail: ossicini@.unimo.it)
3Faculty of Science, Department of Mathematics and Informatics,
P. O. Box 60, 34000 Kragujevac, Serbia,
Yugoslavia.
(e-mail: spale@knez.uis.kg.ac.yu)
(Received May 28, 2002 )
Abstract. This paper is devoted to the memory of Professor Alessandro Ossicini.