Chalkley, Roger, 1931-, Basic global relative invariants for homogeneous linear differential equations / Roger Chalkley - xi, 204 páginas : ilustraciones ; - Memoirs of the American Mathematical Society ; no. 744 . "Volume 156, number 744 (end of volume)" ISBN: 0821827812 (papel alcalino) Subjects--Topical Terms: Ecuaciones diferenciales linealesInvariantes LC Class. No.: QA372 / C425 Dewey Class. No.: 510 s 515/.354