01185nam a2200313 i 450099100083615970753620020507174227.0940713s1993 uk ||| | eng 0521440254b10764008-39ule_instLE01303059ExLDip.to Matematicaeng516.362AMS 49N15AMS 58E05Ghoussoub, Nassif53450Duality and perturbation methods in critical point theory /Nassif GhoussoubCambridge [England] ; New York, NY, USA :Cambridge University press,1993xviii, 258 p. ;24 cm.Cambridge tracts in mathematics ;107Includes bibliographical references and indexAbstract critical point theoryDuality theory.b1076400823-02-1728-06-02991000836159707536LE013 58E GHO11 (1993)12013000015453le013-E0.00-l- 00000.i1085953628-06-02Duality and Perturbation Methods in Critical Point Theory337370UNISALENTOle01301-01-94ma -enguk 01