About the Authors
- Lijun Ran
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Roles Methodology, Software, Supervision, Writing – original draft, Writing – review & editing
Affiliation School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China
- Qi Zhang
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Roles Supervision, Writing – original draft, Writing – review & editing
* E-mail: zq91027@btbu.edu.cn
Affiliation School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China
- Xin Li
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Roles Writing – review & editing
Affiliation School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China
Competing Interests
The authors have declared that no competing interests exist.