中科院数学与系统科学研究院
数学研究所
学术报告
代数几何研讨班
报告人：顾怡 副教授（苏州大学）
报告时间：2022年1月24日（周一）9：30-11：00
报告地点：腾讯会议 401-514-841
报告题目：Singularites of algebraic surfaces
摘要：In this talk, we will introduce singularites of algebraic surfaces. Precisely, criteria of contractability, properties of rational singularities, and singularites of a fibration.
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报告人：顾怡 副教授（苏州大学）
报告时间：2022年1月25日（周二）9：30-11：00
报告地点：腾讯会议 492-806-154
报告题目：Picard scheme of algebraic surfaces in the field of positive char
摘要：We will introduce Picard scheme and the Albanese variety of algebraic surfaces in an algebraically closed field of positive characteristic. Compared with char 0, Picard scheme is possibly singular. We will introduce some pathological phenomenon in char p.
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报告人：顾怡 副教授（苏州大学）
报告时间：2022年1月26日（周三）9：30-11：00
报告地点：腾讯会议 997-547-438
报告题目：A counter-example for Fujita conjecture in char p
摘要：We will introduce Bomberi-Mumford canonical bundle formula for elliptic and quasi-elliptic fibrations. As a counterexample for many famous theorem in the field of complex numbers, we also introduce Raynaud surfaces. Classification of algebraic surfaces in char p will also be introduced.
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