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<div align="center"><big><b><big>Welcome to the 2021 Spring talks of
ODTU-Bilkent Algebraic Geometry Seminars</big></b></big><b><br>
</b><b> </b><b> </b></div>
<b> </b>
<div align="center"><i>since 2000</i><br>
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This week the <a href="http://www.bilkent.edu.tr/%7Esertoz/agseminar.htm" target="_blank">ODTU-Bilkent Algebraic
Geometry Seminar</a> is <b>Online.</b> <br>
<br>
<i><font color="#ff00ff">This talk will begin at <u><b>16:00</b></u><u>
(GMT+3)</u></font></i><br>
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<div align="center"><b><img src="cid:ii_kmkcaqnn0" alt="image.png" width="497" height="333"><br><br> </b><font size="-1"><i> </i></font></div>
<div align="center"><font size="-1"><i>Fikret Muallâ (1903-1967)<br>
Üstünel Collection<br>
</i></font></div>
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<b><b><font color="#ff0000">Speaker: <font color="#000000">Türkü
Özlüm Çelik</font></font></b><br>
<span lang="tr"></span><b><font color="#ff0000">Affiliation: <font color="#000000">Simon Fraser<br>
</font></font></b></b></div>
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<div align="left"><b><b><font color="#ff0000"><br>
Title: <font color="#000000">Integrable Systems in
Symbolic, Numerical and Combinatorial Algebraic Geometry</font></font></b></b></div>
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</font></b></b></div>
<div align="left"><b><b><font color="#ff0000">Abstract:</font></b></b><font color="#ff0000"><font color="#000000"> The
Kadomtsev-Petviashvili (KP) equation is a universal integrable
system that describes nonlinear waves. It is known that
algebro-geometric approaches to the KP equation provide
solutions coming from a complex algebraic curve, in terms of
the Riemann theta function associated with the curve.
Reviewing this relation, I will introduce an algebraic object
and discuss its algebraic and geometric features: the
so-called Dubrovin threefold of an algebraic curve, which
parametrizes the solutions. Mentioning the relation of this
threefold with the classical algebraic geometry problem,
namely the Schottky problem, I will report a procedure that is
via the threefold and based on numerical algebraic geometric
tools, which can be used to deal with the Schottky problem
from the lens of computations. I will finally focus on the
geometric behaviour of the threefold when the underlying curve
degenerates.<br>
<br>
</font></font></div>
<div align="left"><font color="#ff0000"><font color="#000000"><b><font color="#ff0000">Date:<font color="#000000"> 26 March 2021</font></font></b>,
Friday</font></font><br>
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<div align="left"><font color="#ff0000"><font color="#000000"><b> <font color="#ff0000">Time: </font>16:00</b> (GMT+3) <font color="#0000ff"> <b><====== Note new time for this talk</b></font><br>
<b><font color="#ff0000">Place: </font></b><font color="#ff0000"><font color="#000000"><b>Zoom</b></font></font></font></font></div>
<div align="left"><font color="#ff0000"><font color="#000000"><font color="#ff0000"><font color="#000000"><b><br>
</b></font></font></font></font></div>
<blockquote>
<p><font color="#ff0000"><font color="#000000"><font color="#ff0000"><font color="#000000"><b><b style="color:rgb(51,51,51);font-family:arial,verdana,sans-serif;font-size:14px">One day before the
seminar, an announcement with the Zoom link will be
sent to those who registered with Sertöz. <br>
</b></b></font></font></font></font></p>
<p><font color="#ff0000"><font color="#000000"><font color="#ff0000"><font color="#000000"><b><b style="color:rgb(51,51,51);font-family:arial,verdana,sans-serif;font-size:14px">If you have
registered before for one of the previous talks,
there is no need to register again; you will
automatically receive a link for this talk too.<br>
</b></b></font></font></font></font></p>
<p><font color="#ff0000"><font color="#000000"><font color="#ff0000"><font color="#000000"><b><b style="color:rgb(51,51,51);font-family:arial,verdana,sans-serif;font-size:14px">If you have not
registered before, please contact him at <a href="mailto:sertoz@bilkent.edu.tr?subject=Zoom%20Seminar%20Address%20Request">sertoz@bilkent.edu.tr</a>.</b></b></font></font></font></font></p>
</blockquote>
<p><font color="#ff0000"><font color="#000000"><font color="#ff0000"><font color="#000000"><b> </b></font></font></font></font></p>
<div align="left"><br>
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<div align="left">Please bring your own tea and cookies and
self-serve at the convenience of your own home! 😁<span class="gmail-moz-smiley-s1"></span></div>
<div align="left"><br>
</div>
<div align="left">You are most cordially invited to attend.</div>
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</div>
<div align="left">Ali Sinan Sertöz<br>
<font color="#ff0000"><font color="#000000"><b><font color="#ff0000"> </font></b></font></font></div>
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</font></font></div>
<pre class="gmail-moz-signature" cols="72">----------------------------------------------------------------------------
Ali Sinan Sertoz
Bilkent University, Department of Mathematics, 06800 Ankara, Turkey
Office: (90)-(312) - 290 1490
Department: (90)-(312) - 266 4377
Fax: (90)-(312) - 290 1797
e-mail: <a class="gmail-moz-txt-link-abbreviated" href="mailto:sertoz@bilkent.edu.tr">sertoz@bilkent.edu.tr</a>
Web: <a href="http://sertoz.bilkent.edu.tr">sertoz.bilkent.edu.tr</a>
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