Zhang, Jing
Wang, Li-Lian
Li, Huiyuan
Zhang, Zhimin
Funding for this research was provided by:
National Natural Science Foundation of China (11201166)
Fundamental Research Funds for the Central Universities (CCNU15A02033)
Singapore MOE AcRF Tier 1 (RG 15/12, RG 27/15)
Singapore MOE AcRF Tier 2 Grant (MOE 2013-T2-1-095, ARC 44/13)
National Natural Science Foundation of China (No. 91130014, No. 11471312)
National Natural Science Foundation of China (No. 91430216, 11471031)
National Natural Science Foundation of China (91430216)
Division of Mathematical Sciences (DMS-1419040)
Article History
Received: 20 March 2016
Revised: 6 July 2016
Accepted: 19 July 2016
First Online: 25 July 2016