@article{535222e4861940a08a369e140164e8cb,
title = "Hyponormality of singular Cauchy integral operators with matrix-valued symbols",
abstract = "In this paper, we study a class of hyponormal singular integral operators with matrix-valued symbols. First, we characterize hyponormal singular integral operators SΦ,Ψ with trigonometric polynomial symbols Φ and Ψ. Next, we concentrate on the hyponormality of SΦ,Ψ with some assumptions for the symbols Φ and Ψ.",
keywords = "Block Toeplitz operators, Hardy space, Hyponormal operator, Singular integral operator",
author = "Yoenha Kim and Eungil Ko and Jongrak Lee and Takahiko Nakazi",
note = "Funding Information: The first author was supported by Basic Science Researc h Program through the National Researc h Foundation of Korea(NRF) funded by the MinistryofScience,ICT&Future Planning(2015R1C1A1A02036456). The second author was supported by Basic Science Researc h Program through the National Researc h Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B03931937). The third author was supported by BrainKorea21plusMathematicalScienceTeam forGlobalWomen Leaders at Ewha Womans Univ ersit y. Publisher Copyright: {\textcopyright} 2013 Department of Mathematics, Hokkaido University.",
year = "2019",
doi = "10.14492/hokmj/1562810519",
language = "English",
volume = "48",
pages = "443--459",
journal = "Hokkaido Mathematical Journal",
issn = "0385-4035",
publisher = "Department of Mathematics, Hokkaido University",
number = "2",
}