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Characterizations of Hankel operators in the essential commutant of quasicontinuous Toeplitz operators
Published online by Cambridge University Press: 09 February 2021
Abstract
This note characterizes, in terms of interpolating Blaschke products, the symbols of Hankel operators essentially commuting with all quasicontinuous Toeplitz operators on the Hardy space of the unit circle. It also shows that such symbols do not contain the complex conjugate of any nonconstant singular inner function.
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- © Canadian Mathematical Society 2021