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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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A locally closed set with a smooth group structure is a Lie group
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by Armando Machado PDF
Proc. Amer. Math. Soc. 84 (1982), 303-307 Request permission

Abstract:

We prove the following result. Let $V$ be a smooth manifold and let $G \subset V$ be a locally closed set with a group structure such that both multiplication and inversion are smooth maps; then $G$ is an imbedded smooth submanifold of $V$. This result is a generalization of the well-known fact that a closed subgroup of a Lie group is itself a Lie group, because we are not assuming any group structure in the manifold $V$.
References
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Additional Information
  • © Copyright 1982 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 84 (1982), 303-307
  • MSC: Primary 22E15; Secondary 58A05
  • DOI: https://doi.org/10.1090/S0002-9939-1982-0637188-2
  • MathSciNet review: 637188