Geometry, groups and dynamics : ICTS program: groups, geometry and dynamics, December 3 - 16, 2012, CEMS, Kumaun University, Almora, India / C. S. Aravinda, William M. Goldman, Krishnendu Gongopadhyay, Alexander Lubotzky, Mahan Mj, Anthony Weaver, ed. Providence, RI : American Mathematical Soc., 2015