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活动类型：学术报告

主讲人：章唯一（美国明尼苏达大学）

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Title: A new cohomology decomposition of almost complex 4-manifolds

Abstract: I will introduce a new cohomology decomposition of second cohomology
group of almost complex 4-manifolds. This can be viewed as a generalization
of (real) Dolbeault docomposition for complex manifolds. I will calculate
ranks of the subgroups in some cases and explain the relations with
comparison of some symplectic cones.

This is a joint work with Tedi Draghici and Tian-Jun Li.