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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 2024 MCQ for Transactions of the American Mathematical Society is 1.48 .

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Ancient solution of mean curvature flow in space forms
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by Li Lei, Hongwei Xu and Entao Zhao PDF
Trans. Amer. Math. Soc. 374 (2021), 2359-2381 Request permission

Abstract:

In this paper we investigate the rigidity of ancient solutions of the mean curvature flow with arbitrary codimension in space forms. We first prove that under certain sharp asymptotic pointwise curvature pinching condition the ancient solution in a sphere is either a shrinking spherical cap or a totally geodesic sphere. Then we show that under certain pointwise curvature pinching condition the ancient solution in a hyperbolic space is a family of shrinking spheres. We also obtain a rigidity result for ancient solutions in a nonnegatively curved space form under an asymptotic integral curvature pinching condition.
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Additional Information
  • Li Lei
  • Affiliation: Center of Mathematical Sciences, Zhejiang University, Zhejiang Hangzhou, 310027, People’s Republic of China
  • ORCID: 0000-0002-7143-8101
  • Email: lei-li@zju.edu.cn
  • Hongwei Xu
  • Affiliation: Center of Mathematical Sciences, Zhejiang University, Zhejiang Hangzhou, 310027, People’s Republic of China
  • MR Author ID: 245171
  • Email: xuhw@zju.edu.cn
  • Entao Zhao
  • Affiliation: Center of Mathematical Sciences, Zhejiang University, Zhejiang Hangzhou, 310027, People’s Republic of China
  • MR Author ID: 884026
  • Email: zhaoet@zju.edu.cn
  • Received by editor(s): December 12, 2019
  • Published electronically: January 27, 2021
  • Additional Notes: This research was supported by the National Natural Science Foundation of China, Grant Nos. 11531012, 12071424; and the China Postdoctoral Science Foundation, Grant No. BX20180274.

  • Dedicated: Dedicated to Professor Katsuhiro Shiohama on the occasion of his 80th birthday
  • © Copyright 2021 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 374 (2021), 2359-2381
  • MSC (2020): Primary 53C40
  • DOI: https://doi.org/10.1090/tran/8267
  • MathSciNet review: 4223019