About the Authors

Lingling Li

Roles Formal analysis, Funding acquisition, Methodology, Project administration, Resources, Software, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliations School of Mathematics and Statistics, Shaanxi Normal University, Xi’an, China, School of Science, Xi’an Polytechnic University, Xi’an, China

Yulu Hu

Roles Conceptualization, Data curation, Investigation, Writing – original draft

Affiliation School of Science, Xi’an Polytechnic University, Xi’an, China

Yunshan Xu

Roles Conceptualization, Data curation, Investigation

Affiliation Mathematics Department, Faculty of Science and Technology, University of Macau, Taipa, Macau, China

Sanyi Tang

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Supervision, Validation, Writing – original draft, Writing – review & editing

sytang@snnu.edu.cn

Affiliation School of Mathematics and Statistics, Shaanxi Normal University, Xi’an, China

Competing Interests

The authors have declared that no competing interests exist.