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Euclidean Embeddings and Riemannian Bergman Metrics

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Abstract

Consider the sum of the first N eigenspaces for the Laplacian on a Riemannian manifold. A basis for this space determines a map to Euclidean space and for N sufficiently large the map is an embedding. In analogy with a fruitful idea of Kähler geometry, we define (Riemannian) Bergman metrics of degree N to be those metrics induced by such embeddings. Our main result is to identify a natural sequence of Bergman metrics approximating any given Riemannian metric. In particular we have constructed finite dimensional symmetric space approximations to the space of all Riemannian metrics. Moreover the construction induces a Riemannian metric on that infinite dimensional manifold which we compute explicitly.

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  1. Department of Mathematics, Northwestern University, 2033 Sheridan Road Evanston, Evanston, IL, 60208-2730, USA

    Eric Potash

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  1. Eric Potash
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Potash, E. Euclidean Embeddings and Riemannian Bergman Metrics. J Geom Anal 26, 499–528 (2016). https://doi.org/10.1007/s12220-015-9560-3

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