01062nam0-2200373---450-99000857133040332120071025142612.03-11-015269-X000857133FED01000857133(Aleph)000857133FED0100085713320071025d1997----km-y0itay50------baengDEa---a---001yyVariational methods for potential operator equationsJan ChabrowskiBerlinWalter de Gruyterc1997ix, 290 p.24 cmDe Gruyter studies in mathematics24Calcolo delle variazioniEquazioni differenziali ellittiche515.6421itaChabrowski,Jan59970ITUNINARICAUNIMARCBK990008571330403321123-H-2422840MA1MA135-0235D0558E05Variational methods for potential operator equations711310UNINA