Commuting dual Toeplitz operators on the harmonic Dirichlet space

Citation
Yang, Jing Yu et al., Commuting dual Toeplitz operators on the harmonic Dirichlet space, Acta mathematica Sinica. English series (Print) , 32(9), 2016, pp. 1099-1105
ISSN journal
14398516
Volume
32
Issue
9
Year of publication
2016
Pages
1099 - 1105
Database
ACNP
SICI code
Abstract
In this paper, we characterize the symbols for (semi-)commuting dual Toeplitz operators on the orthogonal complement of the harmonic Dirichlet space. We show that for ., . . W 1,., S . S . = S . S . on (D h ). if and only if . and . satisfy one of the following conditions: (1) Both . and . are harmonic functions; (2) There exist complex constants . and ., not both 0, such that . = ..+..