Ngày tải lên :
23/06/2014, 00:20
... Mechanics, University of Patras, 26500 Patras, Greece E-mail address: jenpetro@des.upatras.gr Panayiotis D Siafarikas: Department of Mathematics, University of Patras, 26500 Patras, Greece E-mail address: ... (2.6) or (2.12), the abstract form of u(i1 , ,i p ) in H or H1 , respectively In general, if G is a mapping in l2 (l1 ) and N is a mapping in H(H1 ), p p we call N(u) the abstract form of G(u(i1 ... form of G(u(i1 , ,i p )) if G u i1 , ,i p = N(u),ei1 , ,i p (2.13) Illustrative examples In this section, we will illustrate our method using two characteristic examples of difference equations...