On isomorphisms of algebras of smooth functions

Author:

Mrčun Janez

Abstract

We show that for any smooth Hausdorff manifolds M M and N N , which are not necessarily second-countable, paracompact or connected, any isomorphism from the algebra of smooth (real or complex) functions on N N to the algebra of smooth functions on M M is given by composition with a unique diffeomorphism from M M to N N . An analogous result holds true for isomorphisms of algebras of smooth functions with compact support.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

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