About the Authors
- Yong Li
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Roles Methodology, Writing – original draft
Affiliation Department of Mathematics, Baise University, Baise, Guangxi, 533000, China
- Gonglin Yuan
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Roles Funding acquisition, Investigation, Methodology
* E-mail: glyuan@gxu.edu.cn
Affiliation Guangxi Colleges and Universities Key Laboratory of Mathematics and Its Applications, College of Mathematics and Information Science, Guangxi University, Nanning, Guangxi 530004, China
- Zhou Sheng
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Roles Methodology, Writing – original draft, Writing – review & editing
Affiliation Guangxi Colleges and Universities Key Laboratory of Mathematics and Its Applications, College of Mathematics and Information Science, Guangxi University, Nanning, Guangxi 530004, China
Competing Interests
The authors have declared that no competing interests exist.