<div dir="ltr"><div>Hi everyone,</div><div><br></div><div>Matt Durham from UC Riverside will be visiting us. If anyone is interested in joining, we will meet around noon to go to lunch. Title and abstract below.</div><div><br></div><div>Best,</div><div><br></div><div>Matt</div><div><br></div><div>
<i>Title: Local quasicubicality and sublinear Morse geodesics in mapping class groups and Teichmuller space</i></div><div><i><br></i><div><i>Abstract:
Random walks on spaces with hyperbolic properties tend to sublinearly
track geodesic rays which point in certain hyperbolic-like directions.
Qing-Rafi-Tiozzo recently introduced the sublinear-Morse boundary to
more broadly capture these generic directions.<br><br>In joint work with
Abdul Zalloum, we develop the geometric foundations of
sublinear-Morseness in the mapping class group and Teichmuller space. We
prove that their sublinearly-Morse boundaries are visibility spaces and
admit continuous equivariant injections into the boundary of the curve
graph. Moreover, we completely characterize sublinear-Morseness in terms
of the hierarchical structure on these spaces.<br><br>Our techniques
include developing tools for modeling sublinearly-Morse rays via CAT(0)
cube complexes. Part of this analysis involves establishing a direct
connection between the geometry of the curve graph and the combinatorics
of hyperplanes in these cubical models.</i></div>
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