00750nam0-22002651i-450-990003204980403321000320498FED01000320498(Aleph)000320498FED0100032049820000920d1972----km-y0itay50------baENGITStatistics for economistsan introductionRalph E. BealsChicagoRand McNally College1972xi, 420 p.ill.24 cmRand McNally economics seriesBeals,Ralph E.128142ITUNINARICAUNIMARCBK990003204980403321B/3.1 BEA8910/ISESSESStatistics for economists454316UNINA01284nam a2200349 i 450099100141035970753620020507192948.0950215s1978 us ||| | eng 067700270Xb10843747-39ule_instLE01311859ExLDip.to Matematicaeng515.353AMS 58GQA374Pommaret, J. F.537109Systems of partial differential equations and Lie pseudogroups /J. F. Pommaret ; with a preface by Andre LichnerowiczNew York :Gordon and Breach Publ.,c1978xiv, 411 p. :ill. ;24 cm.Mathematics and its applications ;14Bibliography: p. 405-407.Includes indexLie groupsPartial differential equations on manifoldsPseudogroupsLichnerowicz, André.b1084374723-02-1728-06-02991001410359707536LE013 58G POM11 (1978)12013000021157le013-E0.00-l- 00000.i1095395428-06-02Systems of partial differential equations and Lie pseudogroups919136UNISALENTOle01301-01-95ma -engus 01