Funding for this research was provided by:
Air Force Office of Scientific Research (FA9550-11- 1-0281,FA9550-12-1-0343,FA9550-12-1-0455,)
National Science Foundation (DMS-1115709)
MSU Foundation (SPG-RG100059)
Hong Kong Research Grant Council (16306415,16317416,16308518)
Article History
Received: 28 June 2019
Accepted: 5 June 2020
First Online: 15 July 2020