Hello Everyone,

We have Martin Bobb visiting today from UT.

His title and abstract are below:

Title: Flats in compact convex projective manifolds Speaker: Date: Time: Room: Martin Bobb, University of Texas Feb 11, 2020 3:30 PM MSCS 509 Abstract: Convex projective structures on manifolds are a rich generalization of hyperbolic structures. One key difference is that a convex projective manifold may have flat substruc- tures. We will discuss some first examples of convex projective geometry, and then describe a natural decomposition of compact convex manifolds along their codimension-1 flats. This generalizes a result of Benoist, which states that a compact convex projective 3-manifold geometrically JSJ-decomposes into cusped hyperbolic manifolds.

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Neil R. Hoffman Assistant Professor Department of Mathematics 523 Math Science Building Oklahoma State University Stillwater, OK 74078-1058 405-744-7791 http://math.okstate.edu/people/nhoffman