東京無限可積分系セミナー

過去の記録 ~12/07次回の予定今後の予定 12/08~

開催情報 土曜日 13:30~16:00 数理科学研究科棟(駒場) 117号室
担当者 神保道夫、国場敦夫、山田裕二、武部尚志、高木太一郎、白石潤一
セミナーURL https://www.ms.u-tokyo.ac.jp/~takebe/iat/index-j.html

次回の予定

2024年12月19日(木)

14:00-15:30   数理科学研究科棟(駒場) 002号室
Omar Kidwai 氏 (The Chinese University of Hong Kong)
Quadratic differentials and Donaldson-Thomas invariants (English)
[ 講演概要 ]
We recall the relation between quadratic differentials and spaces of stability conditions due to Bridgeland-Smith. We describe the calculation of (refined) Donaldson-Thomas invariants for stability conditions on a certain class of 3-Calabi-Yau triangulated categories studied by Christ-Haiden-Qiu. This category is slightly different from the usual one discussed by Bridgeland and Smith, which in particular allows us to recover a nonzero invariant in the case where the quadratic differential has a second-order pole, in agreement with predictions from the physics literature. Based on joint work with N. Williams.