https://orcid.org/0000-0003-1111-4284
About the Authors
- Xiangbing Chen
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Roles Methodology, Writing – original draft
Affiliations School of Mathematics and Statistics, Kashi University, Kashi, Xinjiang, China, Division of Mathematics, Sichuan University Jinjiang College, Meishan, Sichuan, China
- Chen Chen
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Roles Methodology, Writing – review & editing
* E-mail: chenchen_uni@foxmail.com
Affiliation School of Science, Civil Aviation Flight University of China, Guanghan, Sichuan, China
- Xiaowen Lu
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Roles Methodology
Affiliation School of Mathematics and Statistics, Kashi University, Kashi, Xinjiang, China
Competing Interests
The authors have declared that no competing interests exist.