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Spherically-symmetric solutions with a chain of n internal Ricci-flat spaces

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arxiv 1006.4605 v1 pith:HBROQJR2 submitted 2010-06-23 gr-qc astro-ph.HE

Spherically-symmetric solutions with a chain of n internal Ricci-flat spaces

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keywords internalricci-flatsolutionspacesauthorcasechainchapter
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The Schwarzschild solution is generalized for the case of n internal Ricci-flat spaces. It is shown that in the four-dimensional section of the metric a horizon exists only when the internal space scale factors are constant. The scalar-vacuum generalization of the solution is also presented. [This paper is the English translation of the part of Chapter. 2.4 of the author's PhD dissertation (Moscow, 1989).]

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