Conditions for hyponormality and invertibility of scaled sums of Toeplitz operators are studied, including the linear-functional symbol case.
Invertibility and spectral properties of dual Toeplitz operators.Journal of Mathematical Analysis and Applications, 484(2):123762
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Hyponormality of the sum of two Toeplitz operators
Conditions for hyponormality and invertibility of scaled sums of Toeplitz operators are studied, including the linear-functional symbol case.