Surfaces of nonpositive curvature.
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Providence, Rhode Island, U.S.A.
American Mathematical Society
1979
|
| श्रृंखला: | Memoirs of the american mathematical society
vol.20 number 218 (first of 2 numbers) |
| विषय: |