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Topology/Geometry Seminar

Circle patterns with obtuse exterior intersection angles

Ze Zhou (Hunan University, China)

Location:  Hill 525
Date & time: Tuesday, 27 March 2018 at 3:30PM - 4:30PM

Abstract:  Koebe-Andreev-Thurston theorem studies the existence and rigidity of circle patterns of a given combinatorial type and the given non-obtuse exterior intersection angles. By using topological degree theory and variational principle, in this talk I will generalize the Koebe-Andreev-Thurston theorem to the case of obtuse exterior intersection angles.

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