TY - BOOK AU - Bahri,Abbas TI - Flow lines and algebraic invariants in contact form geometry T2 - Progress in nonlinear differential equations and their applications SN - 0817643184 (papel alcalino) AV - QA670 B34 PY - 2003/// CY - Boston, Basel PB - Birkhäuser Verlag KW - Geometría diferencial global KW - Variedades de Riemann KW - Variedades (Matemáticas) ER -