<div dir="ltr"><div><div>皆様</div><div><br></div><div><span style="font-family:arial,sans-serif">このメールを重複して受け取られた方はご容赦ください.</span><br></div><div>2014年度第1回目の明治大学幾何セミナーを以下の要領で開催致しますのでお知らせ致します.</div><div><br></div><div>日程:5月14日(水)16:30 -18:00</div>
<div>場所:明治大学生田キャンパス第二校舎6号館6718</div><div><br></div><div>講演者:窪田 陽介 氏(東大数理)</div><div><span style="font-family:arial,sans-serif;font-size:14px">講演題目:The joint spectral flow and localization of the indices of </span><span style="font-family:arial,sans-serif;font-size:14px">elliptic operators</span><br style="font-family:arial,sans-serif;font-size:14px">
<br style="font-family:arial,sans-serif;font-size:14px"><span style="font-family:arial,sans-serif;font-size:14px">概要:The joint spectral flow is a generalization of the </span><span style="font-family:arial,sans-serif;font-size:14px">spectral flow for n-parameter families of mutually commuting n-tuples of </span><span style="font-family:arial,sans-serif;font-size:14px">self-adjoint operators. Its precise definition is given in terms of </span><span style="font-family:arial,sans-serif;font-size:14px">Segal's model of the connective K-theory spectrum. I will explain an </span><span style="font-family:arial,sans-serif;font-size:14px">application of it for some localization results of indices, motivated by </span><span style="font-family:arial,sans-serif;font-size:14px">Witten's deformation of Dirac operators.</span><br style="font-family:arial,sans-serif;font-size:14px">
<br style="font-family:arial,sans-serif;font-size:14px"><span style="font-family:arial,sans-serif;font-size:14px">参考文献:</span><br><ol><li><span style="font-family:arial,sans-serif;font-size:14px">G. Segal. K-homology theory and algebraic K-theory. In K-theory and</span> <span style="font-family:arial,sans-serif;font-size:14px">operator algebras (Proc. Conf., Univ. Georgia, Athens, Ga., 1975), pp. </span><span style="font-family:arial,sans-serif;font-size:14px">113-127. Lecture Notes in Math., Vol. 575. Springer, Berlin, 1977.</span></li>
</ol></div><div><br></div><div><span style="font-family:arial,helvetica,sans-serif">興味を持たれそうな方がおられましたら周知していただけますと幸</span><span style="font-family:arial,helvetica,sans-serif">いです.皆様のご参加をお待ちしております.</span></div></div><div><br>
</div><br clear="all"><div>吉田尚彦<div>明治大学理工学部数学科</div></div>
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