<div dir="ltr"><div><div style="font-size:14px"><font face="arial, helvetica, sans-serif">皆様</font></div><div style="font-size:14px"><font face="arial, helvetica, sans-serif"><br></font></div><div style="font-size:14px"><div><font face="arial, helvetica, sans-serif">今年度,第一回目の明治大学<span class="gmail-il">幾何</span>学<span class="gmail-il">セミナ</span>ーを以下の要領で開催致<wbr>しますのでお知らせ致します.</font></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">日程:2017年6月19日(月)15:20-17:00</font></div><div><font face="arial, helvetica, sans-serif">場所:明治大学生田キャンパス 第二校舎6号館6706</font></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">講演者:田中 祐二氏(大阪大学)</font></div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">講演題目:</font>Vafa-Witten invariants for projective surfaces</div><div><font face="arial, helvetica, sans-serif"><br></font></div><div><font face="arial, helvetica, sans-serif">概要:</font>This is joint work with Richard Thomas, which defines</div>Vafa-Witten invariants for projective surfaces from the moduli space of<br>the Higgs pairs by using virtual C^* localisations; calculates them in<br>examples; and sees (in great amazement) their partition functions match<br>with the modularity predictions by Vafa and Witten more than 20 years<br>ago. I also try to speak about more updates about them.<br></div><div style="font-size:14px"><div><span style="border-collapse:collapse"><font face="arial, helvetica, sans-serif"><div><br></div><div><br></div><div>興味を持たれそうな方がおられましたら周知してくださいますと幸<wbr>いです.皆様のご参加をお待ちしております.</div><div><br></div></font></span></div><div><font face="arial, helvetica, sans-serif"><span class="gmail-il">幾何</span><span class="gmail-il">セミナ</span>ーのホームページ:</font></div><div><a href="http://www.isc.meiji.ac.jp/~takahiko/GeometrySeminar/index.html">http://www.isc.meiji.ac.jp/~takahiko/GeometrySeminar/index.html</a><br></div></div></div><div><br></div><br clear="all"><div><div class="gmail_signature"><div dir="ltr">吉田尚彦<div>明治大学理工学部数学科</div><div>Takahiko Yoshida</div><div>Department of Mathematics</div><div>School of Science and Technology</div><div>Meiji University</div></div></div></div>
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