Giovanni Landi
              
       Mathematics
       
       University of Trieste
       
       Via A. Valerio, 12/1 
       I-34127  Trieste, Italia

       e-mail : landi AT units DOT it

       Tel  +39 040 558 2612
       Fax  +39 040 558 2636


       office 339 in Bldg H2Bis