Hyponormal Toeplitz operators and extremal problems of Hardy spaces


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Please use this identifier to cite or link to this item:https://doi.org/10.14943/83289

Title:	Hyponormal Toeplitz operators and extremal problems of Hardy spaces
Authors:	Nakazi, Takahiko Browse this author
Authors:	Takahashi, Katsutoshi Browse this author
Issue Date:	Apr-1992
Publisher:	Department of Mathematics, Hokkaido University
Journal Title:	Hokkaido University Preprint Series in Mathematics
Volume:	145
Start Page:	2
End Page:	30
Abstract:	The symbols of hyponormal Toeplitz operators are completely described and those are also studied, being related with the extremal problems of Hardy spaces. Moreover we discuss the Halmos's question about a subnormal Toeplitz operator when the selfcornmutator is finite rank.
Type:	bulletin (article)
URI:	http://hdl.handle.net/2115/68891
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > Hokkaido University Preprint Series in Mathematics

Submitter: 数学紀要登録作業用

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