Funding for this research was provided by:
Engineering and Physical Sciences Research Council (EP/E035027/1, EP/L015811/1)
Royal Society (Wolfson Research Merit Award)
PRIN2015 MIUR (Project “Calcolo delle Variazioni”)
Simons Foundation (524190)
US National Science Foundation (1813695)
Article History
Received: 4 September 2018
Accepted: 19 December 2018
First Online: 22 January 2019