<div dir="ltr">Hi everyone,<br><div><br></div><div>A quick reminder about the geometry/topology lunch today (meet outside WH100E) and John's talk in the seminar today at 2:50pm. See you there!</div><div><br></div><div>Cary</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 5, 2023 at 9:59 AM Cary Malkiewich <<a href="mailto:malkiewich@math.binghamton.edu">malkiewich@math.binghamton.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi everyone,<br><br>This week we are pleased to have our very own John Rached speaking about dynamics on the moduli space of surfaces, title and abstract below. This will be an in person talk, on Thursday at 2:50pm in WH 100E.<br><br>We will also have a lunch social, meet at 12pm just outside WH100E. See you there!<br><br>Best,<br>Cary<br><div><br></div><div>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div><b>Title:</b> Quantitative behavior of horocycle flow on the moduli space of genus 2 surfaces<br><b>Abstract:</b> The action of SL(2,R) on moduli space exhibits measure rigidity, analogously to Ratner’s theorems for unipotent flows on homogeneous spaces, due to the seminal work of Eskin-Mirzakhani. Similar results cannot hold for the horocycle flow on moduli space, but for special subvarieties of strata (eigenform loci), some key tools from homogeneous dynamics have an incarnation in this inhomogeneous setting. A version of Ratner’s theorem holds for eigenform loci, and a flurry of recent work on quantitative results for actions on homogeneous spaces begs a natural question - can one effectivize arguments for the horocycle flow on eigenform loci? We give some support for a positive answer to this question, and make some conjectures.<br></div></div>
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