M. Ptak

activity

20132026

most citedCharacterizations of asymmetric truncated Toeplitz operators

21 citations · 27 across the 10 of their papers we have counts for

collaborators

Showing 2019Show all

4 papers · 1 filter

math.FA2019

$C$ --normal operators

Marek Ptak, Katarzyna Simik, Anna Wicher

A new class of operators, larger than $C$ -symmetric operators and different than normal one, named $C$ --normal operators is introduced. Basic properties are given. Characterization…

math.FA2019

Conjugations in $L^{2} (H)$

M. Cristina Câmara, Kamila Kliś--Garlicka, Bartosz Łanucha +1

Conjugations commuting with $M_{z}$ and intertwining $M_{z}$ and $M_{z ˉ}$ in $L^{2} (H)$ , where $H$ is a Hilbert space, are characterize…

math.FA2019

Invertibility, Fredholmness and kernels of dual truncated Toeplitz operators

M. Cristina Câmara, Kamila Kliś-Garlicka, Bartosz Łanucha +1

Asymmetric dual truncated Toeplitz operators acting between the orthogonal complements of two (eventually different) model spaces are introduced and studied. They are shown to be e…

math.FA2019

Conjugations in $L^{2}$ and their invariants

M. Cristina Câmara, Kamila Kliś--Garlicka, Bartosz Łanucha +1

Conjugations in space $L^{2}$ of the unit circle commuting with multiplication by $z$ or intertwining multiplications by $z$ and $z ˉ$ are characterized. We also study their behav…

C--normal operators

Conjugations in L2(H)

Invertibility, Fredholmness and kernels of dual truncated Toeplitz operators

Conjugations in L2 and their invariants

$C$ --normal operators

Conjugations in $L^{2} (H)$

Conjugations in $L^{2}$ and their invariants