ArXiv papers 
Google Scholar Citation profile
Irrationality of zeta(3)
Essay (2024) 
Gauss sums
Essay (2023)
Enhanced hyperbolicity
Oberwolfach Reports (2015)
Fredholm modules and boundary actions of hyperbolic groups
Oberwolfach Reports (2011)
Group quasimorphisms
Notes for a seminar talk, Vanderbilt University (2006, revised 2008)