About the Authors

ChunJing Li

Roles Writing – original draft

Affiliation School of Mathematics and Statistics, Changchun University of Technology, Changchun, China

Yun Li

Roles Software, Writing – original draft

Affiliation School of Mathematics and Statistics, Changchun University of Technology, Changchun, China

Xue Ding

Roles Writing – original draft

Affiliation School of Mathematics and Statistics, Changchun University of Technology, Changchun, China

XiaoGang Dong

Roles Writing – review & editing

dongxiaogang@ccut.edu.cn

Affiliation School of Mathematics and Statistics, Changchun University of Technology, Changchun, China

Competing Interests

The authors have declared that no competing interests exist.