Hardy-Orlicz空间之间的加权复合算子

Weighted Composition Operators Between Hardy-Orlicz Spaces

该文研究了复平面中单位圆盘上不同Hardy-Orlicz空间之间的加权复合算子,利用Carleson测度不等式给出了有界或紧的加权复合算子ωCφ:Np→Nq的特征.作为推论得到了加权复合算子ωCφ:Np→Nq有界(或紧)的充分必要条件是ωCφ:Hp→Hq是有界(或紧)的.此外,还给出了Hardy-Orlicz空间上可逆及Fredholm复合算子的特征.

In this paper, some sufficient and necessary conditions for weighted composition operators between Hardy-Orlicz spaces to be bounded or compact are given respectively. As a corollary, the authors obtain that the boundedness or compactness for weighted composition operators between Hardy-Orlicz spaces is equivalent to corresponding ones on associated Hardy spaces. In addition, the authors also characterize the inducing maps which induce invertible or Fredholm composition operators on Np.