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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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On asymptotic behavior of the mass of rays
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by Takashi Shioya PDF
Proc. Amer. Math. Soc. 108 (1990), 495-505 Request permission

Abstract:

We consider the measure of the set of all unit vectors tangent to rays emanating from a point $p$ in a finitely connected complete open Riemannian $2$-manifold $M$. If $M$ with one end admits total curvature $c(M)$, then this measure tends to $\min \{ 2\pi \chi (M) - c(M),2\pi \}$ as $p$ tends to infinity, where $\chi (M)$ is the Euler characteristic.
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Additional Information
  • © Copyright 1990 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 108 (1990), 495-505
  • MSC: Primary 53C20
  • DOI: https://doi.org/10.1090/S0002-9939-1990-0986652-X
  • MathSciNet review: 986652