Conformal structure on a differential manifold

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Definition

Given data

A connected differential manifold M.

Definition part

A conformal structure on M associates to M a class of conformally equivalent metrics, viz it associates to M a Riemannian metric that is loose upto conformal equivalence.

Thus, every Riemannian metric gives a conformal structure and every conformal structure arises from a Riemannian metric, but different Riemannian metrics may give rise to the same conformal structure.

Facts

Volume-normalization of a conformal structure

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