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Dear list members,<br><div class="gmail_quote"><div dir="ltr"><br>You are most cordially invited to the <span><span><span><span><span>Yeditepe Mathematics Department 25th Year Seminar</span></span></span></span></span>s organized by the Department of Mathematics. The details of this week's talk are as follows:</div><div dir="ltr"><br></div><div>Title: Rank conditions for finite group actions on 4-manifolds</div><div><br></div><div>Speaker: Semra Pamuk (Middle East Technical University)</div><div><br></div><div>Abstract: In this talk, I will give some old and new information about the existence of finite group actions on closed, connected, orientable 4-manifolds. In this dimension, the comparison between smooth and topological group actions are interesting but our focus will be on locally linear topological actions. In particular, we will talk about the following question: Given a closed orientable 4-manifold <i>M</i>, what is the maximum value of <i>rk</i>(<i>G</i>) over all the finite groups <i>G </i>which act effectively, locally linearly, and homologically trivially on <i>M</i>? This is a joint work with Ian Hambleton.</div><div><br></div><div>
<div>Date: Friday, March 12, 2021</div>
<div>Time: 16:00</div>
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Zoom: Please send an e-mail for the seminar link.
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