HELGASON, Sigurdur Differential geometry, lie groups, and symmetric spaces / Sigurdur Helgason - New York Academic press 1978 - xxvi, 641 p. Includes bliography and index. ISBN: 9780821852170 Subjects--Topical Terms: Differential geometryLie groupsSymmetric spaces Dewey Class. No.: 516.36 / HEL