MMA2005 P.Code=StreN ===============------------------------------ First Name =Nikolay Last Name =Strelkov Title =Prof. Institution =Yaroslavl State University Street Address=Sovetskaya, 14 City =Yaroslavl' State =Russia Zip Code =150000 Telephone =+7(0852)557288 Fax =+7(9852)255787 E-mail =strelkov@uniyar.ac.ru URL = Title of talk =N. Strelkov. Projection-Difference Analogs of Laplace Operator Information =