## Topology Seminar (Main Talk): Taut branched surfaces which span fibered faces

Seminar | January 24 | 4-5 p.m. | 3 Evans Hall

Michael Landry, Yale University

Department of Mathematics

Let $M$ be a closed hyperbolic 3-manifold with a fibered face $\sigma$ of the unit ball of the Thurston norm on $H_2(M)$. If $M$ satisfies a certain condition related to Agol’s veering triangulation, we can construct a taut branched surface in $M$ spanning $\sigma$. This partially answers a 1986 question of Oertel, and extends an earlier partial answer due to Mosher.

c_abbott@berkeley.edu