Chabrowski, Jan Variational methods for potential operator equations : With applications to nonlinear elliptic equations Jan Chabrowski - New York : Walter de Gruyter, 1997. - ix, 290 p. ; 25 cm - De Gruyter Studies in Mathematics ; vol. 24 . Contine Bibliografie, Glosar si Index eng ISBN: 311015269X LCCN: 97008060 Subjects--Topical Terms: Calculus of variationsElliptic differential equations--Numerical solutions.Nonlinear differential equations--Numerical solutions. LC Class. No.: QA316 Dewey Class. No.: 515.64