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The Riemannian manifold of all Riemannian metrics

Olga Gil-Medrano·Peter W. Michor
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Abstract

The space of all Riemannian metrics on a smooth second countable finite dimensional manifold is itself a smooth manifold modeled on the space of symmetric (0,2)-tensor fields with compact support. It carries a canonical Riemannian metric which is invariant under the action of the diffeomorphism group. We determine its geodesics, exponential mapping, curvature, and Jacobi fields in a very explicit manner.

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Olga Gil-Medrano, Peter W. Michor. 1992-01-01. The Riemannian manifold of all Riemannian metrics. https://arxiv.org/abs/math/9201259

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