今天是:

10月28日讲座——中国矿业大学张永明:Strong non-vanishing of cohomologies and strong non-freeness of adjoint line bundles on n-Raynaud surfaces

作者:田燕宁  编辑:院科研办   发布日期: 2022-10-25   来源:院科研办   田燕宁

讲座题目:Strong non-vanishing of cohomologies and strong non-freeness of adjoint line bundles on n-Raynaud surfaces

人:张永明 (中国矿业大学)

讲座时间:20221028日(周)上午9:00-10:00

讲座地点:腾讯会议室 446683703

欢迎有兴趣的师生前来聆听!

  理学院

讲座简介:

In this talk, we first introduce the definition of n-Tango curves and n-Raynaud surfaces, and then talk about some pathologies on an n-Raynaud surface. We will see that the larger the number n is the more pathologies the surface catches, such as strong Kodaira non-vanishing and the strong non-freeness of adjoint line bundles. And as a corollary, we give a simple disproof of Fujita's conjecture avoiding so many tedious computations.

 

主讲人简介:

张永明,博士毕业于中科院数学所, 师从代数几何专家孙笑涛教授,曾在复旦大学, 中山大学(珠海)工作, 现任中国矿业大学数学学院副教授、硕士生导师。主要从事代数几何学的研究。主持国家青年基金、江苏省双创博士等, 已在国内外重要杂志发表学术论文若干