共 22 条
[1]
ADAMS JF, 1978, INFINITE LOOP SPACES, V7, P8
[3]
BURKE WL, 1981, ASTROPHYS J, V244, pL1, DOI 10.1086/183466
[4]
DJORGOVSKI SG, UNPUB
[6]
GEROCH R, 1979, GENERAL RELATIVITY E, P253
[7]
Guillemin V., 1974, DIFFERENTIAL TOPOLOG
[8]
GUNN JE, 1981, 10TH P TEX S REL AST, P287
[9]
Hawking S.W., 1973, CAMBRIDGE MONOGRAPHS
[10]
HELGASON S, 1978, DIFFERENTIAL GEOMETR, P59