Zhao, Yan
Wu, Chuanxi
Mao, Jing
Du, Feng
Funding for this research was provided by:
NSF of China (11401131)
NSF of China (11801496)
China Scholarship Council
Fok Ying–Tung Education Foundation
Hubei Key Laboratory of Applied Mathematics
NSF of Hubei Provincial Department of Education (D20184301)
Article History
Received: 18 February 2019
Accepted: 5 September 2019
First Online: 23 September 2019