Surfaces of nonpositive curvature/
Eberlein, Patrick, 1944-
Surfaces of nonpositive curvature/ Patrick Eberlein. - Providence, R.I.: American Mathematical Society, 1979. - x, 90 p. ; 26 cm. - Memoirs of the American Mathematical Society ; no. 218. . - Memoirs of the American Mathematical Society; no. 218. .
"Volume 20 ... (first of 2 numbers)."
Bibliography: p. 89-90.
0821822187
79015112 //r86
Geometry, Differential.
Manifolds (Mathematics)
Surfaces.
510/.8 s 516/.362
Surfaces of nonpositive curvature/ Patrick Eberlein. - Providence, R.I.: American Mathematical Society, 1979. - x, 90 p. ; 26 cm. - Memoirs of the American Mathematical Society ; no. 218. . - Memoirs of the American Mathematical Society; no. 218. .
"Volume 20 ... (first of 2 numbers)."
Bibliography: p. 89-90.
0821822187
79015112 //r86
Geometry, Differential.
Manifolds (Mathematics)
Surfaces.
510/.8 s 516/.362