01016nam0-22003491i-450-9900013251304033213-540-57378-X000132513FED01000132513(Aleph)000132513FED0100013251320000920d1993----km-y0itay50------baengTopological Methods for Variational Problems with SymmetriesThomas Bartsch.BerlinSpringer-Verlagc1993.X, 152 p.24 cmLecture Notes in Mathematics1560 .Teoria qualitativaEquazioni e sistemi ellitticiOperatori non lineari515.3Bartsch,Thomas60120ITUNINARICAUNIMARCBK990001325130403321C-20-(156011650MA1MA134CXX35J20Topological methods for variational problems with symmetries78641UNINAING01