Volume 48, Issue 12 pp. 11823-11835
RESEARCH ARTICLE

Aubry–Mather Sets of the Breathing Circle Billiard

Xiaoming Zhang

Xiaoming Zhang

School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China

State Key Lab of Mechanics and Control for Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

Contribution: Conceptualization, Methodology, Validation, Writing - original draft

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Denghui Li

Denghui Li

School of Mathematics and Statistics, Suzhou University of Technology, Changshu, Jiangsu, China

Contribution: Methodology, Supervision, Writing - review & editing, Writing - review & editing, Supervision, ​Investigation

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Xianbin Liu

Corresponding Author

Xianbin Liu

State Key Lab of Mechanics and Control for Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China

Correspondence:

Xianbin Liu ([email protected])

Contribution: Writing - review & editing, Supervision, ​Investigation

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First published: 19 May 2025

Funding: This work is supported by the National Natural Science Foundation of China (12302015 and 12172167) and Jiangsu Funding Program for Excellent Postdoctoral Talent.

ABSTRACT

Using variational techniques, we study the dynamics of the breathing circle billiard. We prove the existence of Aubry–Mather sets, which contain infinite subharmonic and generalized quasi-periodic solutions, in arbitrarily high energy regions. This is under the assumption that the boundary motion is a C 1 $$ {C}^1 $$ periodic function. Additionally, our method provides a feasible approach to small twist problems and can be applied to some classical impact systems.

Conflicts of Interest

The authors declare no conflicts of interest.

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