Huang, Chieh-Sen https://orcid.org/0000-0001-8209-9371
Arbogast, Todd https://orcid.org/0000-0001-9692-5478
Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (105- 2115-M-110-006-MY2)
National Science Foundation (DMS-1418752)
Multidisciplinary and Data Science Research Center of the National Sun Yat-sen University
Mathematics Division, National Center for Theoretical Sciences
Article History
Received: 23 August 2017
Revised: 11 May 2018
Accepted: 14 May 2018
First Online: 24 May 2018