<div dir="ltr">Dear list members,<br><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><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:<br></div><div dir="ltr"><br></div><div dir="ltr">
Speaker: Alexander Degtyarev (Bilkent University)
</div><div dir="ltr"><br></div><div>Title: Counting lines, curves, planes... in algebraic varieties</div><div><br></div><div>Abstract: I will start from several classical but very simple, almost high school level, examples of algebraic varieties containing many lines, planes, etc. These varieties are very special, as a typical one from the same family would have no lines at all. This brings up a natural problem of finding the *maximal* possible number of lines, planes, etc. that can be contained in a member of a fixed family (say, hypersurfaces of a given dimension and degree). In general, this problem is wide open, but I will describe an approach that lets one attack it for a wide variety of seemingly unrelated families. Finally, if time permits, I will cite a few recent results.</div><div><br></div><div><br></div><div>
<div>Date: Friday, May 7, 2021</div>
<div>Time: 13:00</div>
<div>Zoom: Please email me for the link.<br><br><br><br><span></span></div><div><span>--</span></div><div><span><a href="https://researchseminars.org/seminar/7tepemathseminars" target="_blank">https://researchseminars.org/seminar/7tepemathseminars</a></span></div></div></div></div></div></div></div></div></div>
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