Stability conditions on product varieties

發布者:文明辦作者:發布時間:2019-10-08瀏覽次數:10


主講人:劉昱成,Northeastern University


時間:2019年10月10日10:00


地點:3號樓301


舉辦單位:數理學院


內容介紹:We will review the Bridgeland's definition of stability conditions and Abramovich and Polihchuck's construction of global heart. Then we will construct a natural polynomial stability function associated with the global heart constructed by Abramovich and Polishchuk. Then we use the HN structures of this polynomial to refine the positivity lemma established by Bayer and Macri. These results will allow us to construct a rational stability condition on Db(Coh(X×C)) from a rational stability condition on Db(CohX), where C is a smooth projective curve.