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- W2390798210 abstract "This paper concerns the hyponormality of Toeplitz operator Tφ, on the Hardy space H2 (NFDA2) of the unit circle NFDA2 in the complex plane, with the symbol φ∈L∈L∞ (NFDA2). The hyponormality of a Toeplitz operator Tφ is determined by the symbol φ. An equivalent theorem about the hyponormality of Toeplitz operator Tφ had been given by C. C. Cowen in . In this paper, authors obtained a judgement method of hyponormality of Toeplitz operator Tφ by the symbol of φ. The hyponormality of Toeplitz operator Tφ is equivalent to the semipositive definite form of a real symmetric matrix about the coefficents of φ." @default.
- W2390798210 created "2016-06-24" @default.
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- W2390798210 date "2003-01-01" @default.
- W2390798210 modified "2023-09-25" @default.
- W2390798210 title "Judgement method of hyponormal Toeplitz operator" @default.
- W2390798210 hasPublicationYear "2003" @default.
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