01591nam a2200397 i 450099100122683970753620020507185605.0960220s1993 us ||| | eng 0817636552b10818315-39ule_instLE01308988ExLDip.to Matematicaeng515.355AMS 34C25AMS 58E05AMS 58F05AMS 58F22AMS 70H35QA614.8.A45Ambrosetti, Antonio38493Periodic solutions of singular Lagrangian systems /Antonio Ambrosetti, Vittorio Coti ZelatiBoston ; Basel ; Berlin :Birkhauser,c1993xii, 157 p. :ill. ;25 cm.Progress in nonlinear differential equations and their applications ;10Includes bibliographical references (p. [149]-157)Critical point theoryDifferentiable dynamical systemsNonlinear oscillationsCoti Zelati, Vittorioauthorhttp://id.loc.gov/vocabulary/relators/aut60429.b1081831523-02-1728-06-02991001226839707536LE013 58F AMB11 C.1 (1993)12013000042954le013-E0.00-l- 011610.i1092508928-06-02LE013 58F AMB11 C.2 (1993)22013000096759le013-E0.00-l- 02020.i1092509028-06-02Periodic solutions of singular lagrangian systems376415UNISALENTOle01301-01-96ma -engus 02