Jin, Yu
Lutscher, Frithjof
Pei, Yuan
Funding for this research was provided by:
NSF Grant (DMS 1411703)
NSERC Discovery (RGPIN-2016-04795)
AMS-Simons Travel grant
Article History
Received: 5 March 2017
Accepted: 28 September 2017
First Online: 5 October 2017