2 papers
math.FA2026
Essentially semi-commuting singular integral operators with Cauchy kernel on
Chongchao Wang
In this paper, we completely characterize when the semi-commutator of two Cauchy singular integral operators on is compact. Our main idea is to study Cauchy singular integral…
math.FA2020
Essentially commuting dual truncated Toeplitz operators
Chongchao Wang, Xianfeng Zhao, Dechao Zheng
In this paper, we completely characterize when two dual truncated Toeplitz operators are essentially commuting and when the semicommutator of two dual truncated Toeplitz operators…