21 citations · 27 across the 10 of their papers we have counts for
17 papers
The conjugate orbit of a unitary operator
Javad Mashreghi, Marek Ptak, William T. Ross
This paper discusses various aspects of the collection of unitary operators , where is a fixed unitary operator on a complex Hilbert space and varies ove…
Shift invariance and reflexivity of compressions of multiplication operators
M. Cristina Câmara, Kamila Kliś-Garlicka, Bartosz Łanucha +1
The property of being shift invariant and being reflexive or transitive in the case of the space of (asymmetric) truncated Toeplitz operators, and the space of (asymmetric) dual tr…
Square roots of some classical operators
Javad Mashreghi, Marek Ptak, William T. Ross
In this paper we give complete descriptions of the set of square roots of certain classical operators, often providing specific formulas. The classical operators included in this d…
Intertwining property for compressions of multiplication operators
M. Cristina Câmara, Kamila Kliś--Garlicka, Bartosz Łanucha +1
Following Beurling's theorem the natural compressions of the multiplication operator in the classical space are compressions to model spaces and to their orthogonal complemen…
Interpolating with outer functions
Javad Mashreghi, Marek Ptak, William T. Ross
The classical theorems of Mittag-Leffler and Weierstrass show that when is a sequence of distinct points in the open unit disk $\D$, with no accumulation points in $\D$,…
Asymmetric truncated Toeplitz operators and conjugations
M. Cristina Câmara, Kamila Kliś-Garlicka, Marek Ptak
Truncated Toeplitz operators in a model space are C--symmetric with respect to a natural conjugation in that space. We show that this and another conjugation associated to an ortho…