01219nam a2200337 i 450099100088388970753620020507175207.0940711s1983 us ||| | eng 3764331038b10770732-39ule_instLE01303791ExLDip.to Matematicaeng515.64AMS 49-XXAMS 58A15QA316.G84Griffith, Phillip A.55674Exterior differential systems and the calculus of variations /Phillip A. GriffithsBoston :Birkhauser,1983viii, 335 p. :ill. ;24 cmProgress in mathematics [Birkhauser],ISSN 0743-1643;25Bibliography: p. 332-335Includes indexCalculus of variationsExterior differential systems.b1077073223-02-1728-06-02991000883889707536LE013 49-XX GRI11 (1983)12013000000565le013-E0.00-l- 02020.i1086915328-06-02Exterior differential systems and the calculus of variations922533UNISALENTOle01301-01-94ma -engus 01