Abstract.
It is proved that isomorphisms between algebras of smooth functions on Hausdorff smooth manifolds are implemented by diffeomorphisms. It is not required that manifolds are connected nor second countable nor paracompact. This solves a problem stated by A. Weinstein. Some related results are discussed as well.
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Received: 3 November 2004
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Grabowski, J. Isomorphisms of algebras of smooth functions revisited. Arch. Math. 85, 190–196 (2005). https://doi.org/10.1007/s00013-005-1268-3
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DOI: https://doi.org/10.1007/s00013-005-1268-3