TY - BOOK AU - Bluman,George W. AU - Bluman,George W. TI - Symmetry and integration methods for differential equations T2 - Applied mathematical sciences SN - 0387986545 (papel alcalino) AV - QA372 B589 PY - 2002/// CY - New York PB - Springer Verlag KW - Ecuaciones diferenciales KW - Soluciones numéricas KW - Ecuaciones diferenciales parciales KW - Grupos de Lie N1 - "This book is a significant update of the first four chapters of Symmetries and differential equations, Springer 1989 (reprinted with corrections 1996), by George W. Bluman and Sukeyuki Kumei"--Pref ER -