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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Lie algebroids and Cartan’s method of equivalence
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by Anthony D. Blaom PDF
Trans. Amer. Math. Soc. 364 (2012), 3071-3135 Request permission

Abstract:

Élie Cartan’s general equivalence problem is recast in the language of Lie algebroids. The resulting formalism, being coordinate and model-free, allows for a full geometric interpretation of Cartan’s method of equivalence via reduction and prolongation. We show how to construct certain normal forms (Cartan algebroids) for objects of finite-type, and are able to interpret these directly as ‘infinitesimal symmetries deformed by curvature’.

Details are developed for transitive structures, but rudiments of the theory include intransitive structures (intransitive symmetry deformations). Detailed illustrations include subriemannian contact structures and conformal geometry.

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Additional Information
  • Anthony D. Blaom
  • Affiliation: 22 Ridge Road, Waiheke Island, New Zealand
  • Email: anthony.blaom@gmail.com
  • Received by editor(s): November 27, 2008
  • Received by editor(s) in revised form: August 9, 2010
  • Published electronically: February 3, 2012
  • © Copyright 2012 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: Trans. Amer. Math. Soc. 364 (2012), 3071-3135
  • MSC (2010): Primary 53C15, 58H15; Secondary 53B15, 53C07, 53C05, 58H05, 53A55, 53A30, 58A15
  • DOI: https://doi.org/10.1090/S0002-9947-2012-05441-9
  • MathSciNet review: 2888239