理学院"当代科学前沿讲坛"第227讲
报告题目：Pointwise and Ball Average Characterizations of Function Spaces(函数空间的点态与球平均刻画)
报 告 人：杨大春 教授(北京师范大学数学学院)
报告时间：2016年6月20日(周一)9:00
报告地点：校本部G507
邀 请 人：赵发友
主办单位：理学院数学系
报告简介：It is well known that function spaces play an important role in the study on various problems from analysis. In this talk, we present pointwise and ball average characterizations of function spaces including Sobolev spaces, Besov spaces and Triebel-Lizorkin spaces on the Euclidean spaces. These characterizations have the advantages so that they can be used as the definitions of these function spaces on metric measure spaces. Some open questions are also presented in this talk.
