共 9 条
- [2] Dugundji J., 1966, TOPOLOGY
- [3] SINGULARITIES IN NONSIMPLY CONNECTED SPACE-TIMES [J]. JOURNAL OF MATHEMATICAL PHYSICS, 1975, 16 (12) : 2364 - 2367
- [5] Hawking SW., 1973, CAMBRIDGE MONOGRAPHS
- [6] Kelley John L., 1955, GENERAL TOPOLOGY, P33
- [7] MILNOR JW, 1974, CHARACTERISTIC CLASS, P115
- [8] MISNER CW, 1964, P THEORY GRAVITATION, P189
- [9] [No title captured]