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Title:
Sphere Packings, Bugs, and Arithmetic

Speaker:
Alex Kontorovich

Abstract:
We will discuss the relationship between what we call Kleinian Packings, and more generally, Bugs (generalizing the classical Apollonian packing), especially the integral (and "superintegral") ones with the theory of Zariski dense subgroups of arithmetic hyperbolic groups

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=4499

Workshop:
Simons- Program: Renormalization and universality in Conformal Geometry, Dynamics, Random Processes, and Field Theory