Perlen-Kolloquium: Francesco Costantino (IRMA Strasbourg):

Quantum invariants of graphs and their geometry

I will recall the definition of the Kauman brackets of a graph embedded in the three-dimensional sphere. After providing some examples, I will formulate a general problem on the "asymptotical behavior" of such objects. In the case of planar graphs, I shall then relate such a problem to the geometry of polyhedra in the hyperbolic space.

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