报告时间：2019年9月18日（周三）10：00--11：00

报告地点：勤园21-306

报告摘要：

We consider dual Toeplitz operators acting on the orthogonal complements of two kinds of Dirichlet spaces on the unit ball. We first characterize the compactness for operators which are finite sums of dual Toeplitz products. Next, we give a characterization of when a finite sum of products of two dual Toeplitz operators is another dual Toeplitz operator. Our results show that there are similarities and differences between the results on two spaces. Also our results extend several known results by providing unified ways of treating them.

专家简介：  

  Young Joo Lee 教授 (韩国 Chonnam National University)

      http://www.math.chonnam.ac.kr/yjlee/