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Tensor distributions on signature-changing space-times

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<mark>Journal publication date</mark>03/2000
<mark>Journal</mark>General Relativity and Gravitation
Issue number3
Volume32
Number of pages13
Pages (from-to)491-503
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Irregularities in the metric tensor of a signature-changing space-time suggest that field equations on such space-times might be regarded as distributional. We review the formalism of tensor distributions on differentiable manifolds, and examine to what extent rigorous meaning can be given to field equations in the presence of signature-change, in particular those involving covariant derivatives. We find that, for both continuous and discontinuous signature-change, covariant differentiation can be defined on a class of tensor distributions wide enough to be physically interesting.