OSU Mathematics Seminars and Colloquia
Calendar
Tue, Sep 07, 2021
Topology Seminar
3:00 PM
Virtual meeting
Bounds for arithmetic invariants of 3-manifolds
Neil Hoffman, Oklahoma State University
Host: Neil Hoffman
Contact Neil Hoffman for the link.
[Abstract] [PDF]
Abstract: A hyperbolic 3-manifold is the quotient of $H^3$ by $\Gamma$ a discrete subgroup of $PSL(2,\mathbb{C})$. In fact, this subgroup $\Gamma$ carries a substantial amount of arithmetic information. I will discuss some of the background for defining a hyperbolic 3-manifold this way, and show how this leads to upper bounds on the degrees of fields used define this data. Finally, I will describe how this perspective fits into joint work with K. Petersen.
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