About the Authors

Lijun Ran

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

Roles Supervision, Writing – original draft, Writing – review & editing

zq91027@btbu.edu.cn

Affiliation School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China

Xin Li

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.