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Guolei Zhong, Positivity of Tangent Sheaf of Projective Varieties

October 10, 2023 @ 11:00 am - 12:00 pm KST

B236-1, IBS Korea, Republic of


Guolei Zhong

In this talk, we discuss the structure of projective varieties with certain positive tangent sheaves. More precisely, when the tangent sheaf is almost nef or positively curved, we construct a well-defined MRC fibration and study the Fujita decomposition of reflexive sheaves. Besides, we show that the almost nefness of the tangent sheaf will impose rather restrictive condition on the singularities, and some typical examples will be given. This is based on my recent joint work with Masataka Iwai and Shin-ichi Matsumura.


October 10, 2023
11:00 am - 12:00 pm KST
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IBS Korea, Republic of


Yongnam Lee
IBS 복소기하학연구단 Center for Complex Geometry
기초과학연구원 복소기하학연구단
대전 유성구 엑스포로 55 (우) 34126
IBS Center for Complex Geometry
Institute for Basic Science (IBS)
55 Expo-ro Yuseong-gu Daejeon 34126 South Korea
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