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GAGA Seminar

hyperbolic_tiling     Toroidal_coord

Efton Park will continue a series of lectures on coarse geometry on Wednesday, April 5, in TUC 352. Here is an abstract:

Coarse geometry is the study of spaces (especially metric spaces) from a “large scale” point of view — two spaces are coarsely equivalent if they look the same from “far away.” This notion is important in understanding Mostow rigidity and Gromov’s word hyperbolic groups. In these lectures, I will give define the basic notions of coarse geometry, compare and contrast coarse geometry with topology (which in some sense explores the “small scale” structure of a space), and look at some applications.