About the Authors

Nora Heitzman-Breen

Roles Conceptualization, Formal analysis, Software, Writing – original draft, Writing – review & editing

Affiliation Department of Mathematics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America

Stanca M. Ciupe

Roles Conceptualization, Formal analysis, Funding acquisition, Software, Supervision, Writing – original draft, Writing – review & editing

stanca@vt.edu

Affiliation Department of Mathematics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America

Competing Interests

The authors have declared that no competing interests exist.