共 15 条
[1]
Bel L., 1962, CAHIERS PHYS, V16, P59
[3]
CLASSIFICATION OF RICCI TENSOR IN GENERAL RELATIVITY THEORY
[J].
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,
1976, 9 (04)
:541-545
[5]
RECURRENCE CONDITIONS IN SPACE-TIME
[J].
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,
1977, 10 (01)
:29-42
[8]
HALL GS, 1984, IN PRESS 4TH P M MAT
[9]
Hawking S.W., 1973, CAMBRIDGE MONOGRAPHS