Together with Jayce R. Getz, I have written a book for the Springer Graduate Texts in Mathematics (GTM series). The authors appreciate the valuable comments and corrections that have been submitted to us. They will be incorporated into the final draft, which unfortunately we cannot post here due to the publisher’s rules.
Part of the book was written during our stay at the Institute for Advanced Study during the Spring of 2018 and we appreciate its hospitality. This book project is also supported in part by the first author’s NSF grants DMS-1901883 and DMS-1405708.