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國 立 清 華 大 學 數 學 系 學 術 演 講 NTHU MATH Colloquium. Speaker: 張懷良 (Hua Liang Chang, SISSA, Italy) Time: Sept. 29, 2008. 4:00 ~ 5:00 PM ( 星期一 ) Title: Derived Kodaira Spencer map and derived cosection lemma Place: 國立清華大學綜三館數 R734 Tea Time : 3:30PM R707 ( 七樓休息室 ). Abstract:
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國 立 清 華 大 學 數 學 系學 術 演 講NTHU MATH Colloquium Speaker:張懷良(Hua Liang Chang, SISSA, Italy) Time: Sept. 29, 2008. 4:00 ~ 5:00 PM (星期一) Title: Derived Kodaira Spencer map and derived cosection lemma Place:國立清華大學綜三館數 R734 Tea Time: 3:30PM R707 (七樓休息室) Abstract: Cosection lemma of Jun Li shows a cosection of obstruction sheaf must annihilate the intrinsic normal cone. By proving a derived version of this lemma and with the derived version of Kodaira Spencer map, we give a short proof of the famous Kodaira's principle: "Ambient cohomology annihilatesobstructions" (also called semiregularity) in the deformation theroy of Hodge structure. *歡迎參加,敬請張貼* http://www.math.nthu.edu.tw