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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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Multiplicative ergodic theorem of semi-discrete dynamic system
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by Jiahui Feng and Xue Yang PDF
Proc. Amer. Math. Soc. 150 (2022), 4393-4405 Request permission

Abstract:

In this paper, Multiplicative Ergodic Theorem (MET) on manifolds with semi-discrete time variable is proved. Considering that there is no cocycle property with any semi-discrete time variable $t\in \mathbb {T}$, we define the quasi-cocycle property on forward and backward time scales. We obtain the skew-product quasi-flow with semi-discrete time variable $t\in \mathbb {T}$. For dynamic equations with $\Delta$-derivative and $\nabla$-derivative on $\mathbb {T}$, we present a more generalized version about MET of semi-discrete system. The result is more suitable for treating models with nonuniform time difference and studying the stability of systems induced by both differential and difference operators.
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Additional Information
  • Jiahui Feng
  • Affiliation: College of Mathematics, Jilin University, Changchun 130012, People’s Republic of China
  • Email: fengjiahui1018@163.com
  • Xue Yang
  • Affiliation: College of Mathematics, Jilin University, Changchun 130012, People’s Republic of China; and School of Mathematics and Statistics, and Center for Mathematics and Interdisciplinary Sciences, Northeast Normal University, Changchun 130024, People’s Republic of China
  • Email: yangxuemath@163.com
  • Received by editor(s): June 28, 2021
  • Received by editor(s) in revised form: December 8, 2021, and January 2, 2022
  • Published electronically: June 10, 2022
  • Additional Notes: This work was supported by National Basic Research Program of China (No. 2013CB834100), NSFC (No. 12071175), JilinDRC (No. 2017C028-1), Science and Technology Development of Jilin Province, China (No. 20190201302JC), Natural Science Foundation of Jilin Province (No. 20200201253JC)
    The first author is the corresponding author
  • Communicated by: Wenxian Shen
  • © Copyright 2022 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 150 (2022), 4393-4405
  • MSC (2020): Primary 37H15, 37D25
  • DOI: https://doi.org/10.1090/proc/15999
  • MathSciNet review: 4470183