Acta mathematica scientia,Series B ›› 1988, Vol. 8 ›› Issue (2): 211-226.
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Xu Dianyan
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Abstract: The α3 coefficient of scalar field in arbitrary Riemann space-time background is calculated by point separation method in this article. The primary expression of α3 involves 25 invariants. Using the identities derived in the appendix, we can reduce α3 from 25 invariants to 17 invariants which agree with Gilkey's formula for α3 coefficient of the scalar field derived by geometric methods and reasons. Recently we derived two important invariant identilies, using these identities we can reduce α3 from 17 invariants to 15 invariants which would much simplify the calculation of the energymomentum tensor of vacuum polarization.
Xu Dianyan. CALCULATION OF α3 COEFFICIENT OF SCALAR FIELD BY POINT SEPARATION METHOD[J].Acta mathematica scientia,Series B, 1988, 8(2): 211-226.
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