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Algebraic surfaces of general type with numerically trivial automorphisms

来源:复旦大学数学科学学院 | 2017-09-14 | 发布:经管之家

报告题目: Algebraic surfaces of general type with numerically trivial automorphisms报 告 人: 刘文飞教授报告人所在单位:厦门大学报告日期:2017-09-22 星期五报告时间:15:30-16:30报告地点:光华东主楼1501报告摘要:
In studying automorphisms of algebraic varieties it is natural to consider the induced action on the cohomology ring, say, with complex coefficients. In many cases the induced action is faithful, which can be understood as certain rigidity of the automorphisms. Yet there do exist algebraic varieties that have nontrivial automorphisms acting on the cohomology ring. Such automorphisms are callednumerically trivial. In this talk I will report on a characterization of algebraic surfaces of general type having a maximal possiblegroupofnumerically trivial automorphisms.This is partly based on joint work with Jin-Xing Cai and Lei Zhang.

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本年度学院报告总序号:197
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