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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Below is now also the zoom information if you want to participate in a hybrid manner. (But I would love to see you in Leiden)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Best,<br>
Thomas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Federica Pasquotto <f.pasquotto@math.leidenuniv.nl><br>
<b>Date: </b>Thursday, 2 June 2022 at 13:42<br>
<b>To: </b>Federica Pasquotto <f.pasquotto@math.leidenuniv.nl><br>
<b>Subject: </b>Reminder: DDT&G seminar tomorrow (on Thurston's vision in Geometry, Topology, and Dynamics)<o:p></o:p></span></p>
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<p><span style="font-size:12.0pt;color:black">Dear all,<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">This is a reminder that the next Dutch Differential Topology and Geometry seminar, will start at<span class="apple-converted-space"> </span><b>2 p.m. tomorrow,
Friday 3 June</b>. <o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span class="apple-converted-space"><span style="font-size:12.0pt;color:black">Speaker: <b>Misha Hlushchanka</b></span></span><b><span style="font-size:12.0pt;color:black"> </span></b><span style="font-size:12.0pt;color:black">(Utrecht University), <o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">Title: <b>"On Thurston's vision in Geometry, Topology, and Dynamics"</b>. <o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">Place: <b>Leiden (room 401, Snellius building, Niels Bohrweg 1)</b>.<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">Please see below for a more detailed description of the seminar's content.<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">We would like to remind you that master students with an interest in topology and geometry are strongly encouraged to participate.<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">It will also be possible to follow the seminar online using the login details below:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">https://universiteitleiden.zoom.us/j/68000648458?pwd=cUE3UFptY2ZGd24vY3lUK2xNZEVBdz09<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Meeting ID: 680 0064 8458<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Passcode: 5y<P5r[W<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">The schedule for all participants will be as follows:<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">2:00-3:00 p.m.: first part of the seminar (little to no prior knowledge assumed)<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">3:00-3:30 p.m.: coffee break/questions about part I<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">3:30-4:30 p.m.: second part of the seminar (slightly more advanced level)<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">4:30-...: more questions, discussion and beer <o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">Please visit the seminar's webpage for additional information and an overview of past and upcoming talks:<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><a href="https://www.few.vu.nl/~trt800/ddtg.html">https://www.few.vu.nl/~trt800/<span style="color:#070706;background:#FFEE94">ddt</span>g.html</a><o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">We would also like to remind you that the previous lectures are available on the youtube channel of the seminar: <o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><a href="https://www.youtube.com/channel/UCN0o3PUqaC_ZhPNuM846kgg/" title="https://www.youtube.com/channel/UCN0o3PUqaC_ZhPNuM846kgg/">https://www.youtube.com/channel/UCN0o3PUqaC_ZhPNuM846kgg/</a><o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">We hope to see many of you tomorrow!<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black">Alvaro, Federica, Rob, and Thomas.<o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><b><span style="font-size:12.0pt;color:black">Abstract:</span></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p style="caret-color: rgb(0, 0, 0);text-size-adjust: auto"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Since the 1980s, Bill Thurston has done fundamental work in apparently quite different areas of mathematics: geometry of 3-manifolds, geometry of surface automorphisms, and dynamics of branched
covers of the 2-sphere. In all contexts, Thurston's theorems have fundamental importance and are the cornerstones of ongoing research. These results are surprisingly closely connected both in statements and in proofs. In all three areas, the statements can
be expressed as follows: either a topological object has a geometric structure (the manifold is geometric, the surface automorphism has Pseudo-Anosov structure, a branched cover of the sphere respects the complex structure), or there is a well defined topological-combinatorial
obstruction. Moreover, all three theorems are proved by an iteration process in a finite dimensional Teichmüller space (this is a complex space that parametrizes Riemann surfaces of finite type).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">The goal of this minicourse is to discuss Thurston's theorems (up to some level of detail) and the common machinery (Teichmüller theory) in a unified way, so as to highlight many of the analogies
between the results. We may also have a glimpse at the modern research in holomorphic dynamics continuing the legacy of Bill Thurston.<o:p></o:p></span></p>
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