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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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Double points on hyperbolic surfaces
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by Troels Jørgensen and Hanna Sandler PDF
Proc. Amer. Math. Soc. 119 (1993), 893-896 Request permission

Abstract:

It is shown that every proper intersection point of two closed geodesics on an orientable hyperbolic surface is either a simultaneous double point of two closed geodesics of equal length or a quadruple point, and this phenomenon persists under deformations of the surface.
References
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Additional Information
  • © Copyright 1993 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 119 (1993), 893-896
  • MSC: Primary 30F45; Secondary 51M10, 53A35
  • DOI: https://doi.org/10.1090/S0002-9939-1993-1160302-7
  • MathSciNet review: 1160302