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Finite sections of truncated Toeplitz operators

100%

Roch S.

Concrete Operators

2015

tom 2

nr 1

We describe the C*-algebra associated with the finite sections discretization of truncated Toeplitz operators on the model space K2u where u is an infinite Blaschke product. As consequences, we get a stability criterion for the finite sections discretization and results on spectral and pseudospectral approximation.

Restricted interpolation by meromorphic inner functions

100%

Poltoratski A., Rupam R.

Concrete Operators

2016

tom 3

nr 1

102-111

Meromorphic Inner Functions (MIFs) on the upper half plane play an important role in applications to spectral problems for differential operators. In this paper, we survey some recent results concerning function theoretic properties of MIFs and show their connections with spectral problems for the Schrödinger operator.

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Asymmetric truncated Toeplitz operators equal to the zero operator

100%

Jurasik J., Łanucha B.

Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica

2016

tom 70

nr 2

Asymmetric truncated Toeplitz operators are compressions of multiplication operators acting between two model spaces. These operators are natural generalizations of truncated Toeplitz operators. In this paper we describe symbols of asymmetric truncated Toeplitz operators equal to the zero operator.

Ograniczanie wyników

2 Concrete Operators

1 Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica

1 Jurasik J.

1 Poltoratski A.

1 Roch S.

1 Rupam R.

1 Łanucha B.

2 2016

1 2014

Wyniki wyszukiwania

Finite sections of truncated Toeplitz operators

Restricted interpolation by meromorphic inner functions

Asymmetric truncated Toeplitz operators equal to the zero operator