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<p class="MsoNormal"><span style="font-size:11.0pt">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Today at 11 we have the AG with a guest of Senja. Hope to see you there!<o:p></o:p></span></p>
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<span style="font-size:11.5pt;font-family:Helvetica;color:black">AG: 19-03-2024: 11:00 in Maryam: <a href="https://wpi-skcm2.hiroshima-u.ac.jp/people/yuka-kotorii/">Yuka Kotorii </a>(Hiroshima): Homotopy theories of colored links and spatial graphs<o:p></o:p></span></h4>
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<span style="font-size:9.0pt;font-family:Helvetica;color:black">Abstract: Two links are called link-homotopic if they are transformed to each other by a sequence of self-crossing changes and ambient isotopies. The notion of link-homotopy is generalized to spatial
graphs and it is called component-homotopy. The link-homotopy classes were classified by Habegger and Lin through the classification of the link-homotopy classes of string links. In this talk, we classify colored string links up to colored link-homotopy by
using the Habegger-Lin theory. Moreover, we classify colored links and spatial graphs up to colored link-homotopy and component-homotopy respectively. This research is joint work with Atsuhiko Mizusawa.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thomas<o:p></o:p></span></p>
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