搜索结果: 1-2 共查到“泛函分析 composition”相关记录2条 . 查询时间(0.062 秒)
Estimates for approximation numbers of some classes of composition operators on the Hardy space
approximation numbers Blaschke product composition operator cusp map Hardy space modulus of continuity Schatten classes
2012/6/21
We give estimates for the approximation numbers of composition operators on $H^2$, in terms of some modulus of continuity. For symbols whose image is contained in a polygon, we get that these approxim...
Abstract composition laws and their modulation spaces
Pseudodifferential operator Moyal algebra Weyl product modulation mapping modulation space
2011/9/13
Abstract: On classes of functions de?ned on R^2n we introduce abstract composition laws modelled after the pseudodifferential product of symbols. We attach to these composition laws modulation mapping...