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Conditions for the local existence of metric in a generic affine manifold

Published online by Cambridge University Press:  24 October 2008

Kuo-Shung Cheng
Affiliation:
Chiao Tung University and Tsing Hua University, Hsinchu, Taiwan, Republic of China
Wei-Tou Ni
Affiliation:
Chiao Tung University and Tsing Hua University, Hsinchu, Taiwan, Republic of China

Abstract

For a manifold with a generic symmetric affine connection, explicit necessary and sufficient conditions for the local existence of metric compatible with the connection are obtained in terms of the Riemann tensor and its first-order covariant derivatives. If these conditions are satisfied, the solutions for metric are unique up to a constant scale factor and the absolute value of the signature is uniquely determined. Explicit formulae for the solutions are given in terms of integrals.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1980

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References

REFERENCES

(1)Cheng, K.-S. and Ni, W.-T.Necessary and sufficient conditions for the existence of metric in two-dimensional affine manifolds. Chinese J. Phys. 16 (1978), 228.Google Scholar
(2)Cheng, K.-S. and Ni, W.-T.Necessary and sufficient conditions for the existence of metric in three-dimensional affine manifolds. Chinese J. Phys. 17 (1979),Google Scholar