01055nam0-22003611i-450-9900011263304033210-521-44025-4000112633FED01000112633(Aleph)000112633FED0100011263320000920d1993----km-y0itay50------baengDuality and perturbation methods in critical point theoryNassif GhoussoubCambridgeCambridge University Pressc1993xviii, 258 p.ill.24 cmCambridge tracts in mathematics107Analisi globaleCalcolo delle variazioniTeoria dei punti critici514.74Ghoussoub,Nassif53450ITUNINARICAUNIMARCBK990001126330403321MAI-58-00417109MA1MA158-0249-0258E05Duality and Perturbation Methods in Critical Point Theory337370UNINAING01