Han, Daozhi https://orcid.org/0000-0002-2859-7609
Wang, Xiaoming
Funding for this research was provided by:
Fudan University
Directorate for Mathematical and Physical Sciences (DMS1715504)
Missouri University of Science and Technology
Article History
Received: 16 September 2017
Revised: 20 May 2018
Accepted: 26 May 2018
First Online: 5 June 2018