學會公告：2024許振榮教授紀念講座 Chen-Jung Hsu Lectures: Dec. 2-4, 2024 (Institute of Mathematics, Academia Sinica)

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2024許振榮教授紀念講座，活動訊息公告

Chen-Jung Hsu Lectures: Dec. 2-4, 2024 (Institute of Mathematics, Academia Sinica)

2024 Chen-Jung Hsu Lecture - 許振榮教授紀念講座
Speaker: Prof. Claire Voisin (Institut de Mathématiques de Jussieu-Paris rive gauche)
Time: 15:30-16:30, December 2-4 (Monday-Wednesday), 2024
Venue: Room 202, 2F, Astronomy-Mathematics Building (NTU Campus)
 
Title: Cycle classes and Chern classes in complex geometry
Abstract:
There are two main constructions linking complex geometry and topology, namely Chern classes of holomorphic vector bundles and cycle classes of closed analytic subsets, first introduced by Borel and Haefliger. The relationships between the two constructions is subtle even in the algebraic geometry setting. I will discuss various comparison results, with emphasis on the Borel-Haefliger "smoothing problem", asking whether classes of closed analytic subsets and classes of closed complex submanifolds generate the same subgroup.
 
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