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袁文——Smoothness Function Spaces on Metric Spaces
发布人:许全华  发布时间:2020-07-03   浏览次数:470

标题:Smoothness Function Spaces on Metric Spaces


报告人:袁文(北京师范大学)


时间:7月10日,14:30-16:00


地点:腾讯会议,会议 ID:405 270 276 


摘要:Function spaces with smoothness have wide and various applications in different areas of mathematics. In this talk, we give an introduction of the theory of function spaces with smoothness developed in the recent decades, including Sobolev, Besov and Triebel-Lizorkin spaces defined via Haj\lasz gradients and uppergradients.In particular,we give some new characterizations of Sobolev, Besov and Triebel-Lizorkin spaces on Euclidean spaces in terms of differences of ball averages, which provide a new way to introduce these spaces with high order smoothness on metric spaces.


会议链接:https://meeting.tencent.com/s/kSfXjWNIZJ7g


视频链接:https://www.bilibili.com/video/bv1zt4y1Q7au 


报告PPT:Talk(WenYuan-HIT).pdf