Agler, Jim
McCarthy, John E.
Funding for this research was provided by:
National Science Foundation (DMS1300280)
National Science Foundation (DMS1361720)
Article History
Received: 29 January 2015
Revised: 4 June 2015
Accepted: 13 June 2015
First Online: 25 July 2015
Free to read: This content has been made available to all.