Results 1 to 10 of about 469 (43)

Quantum injectivity of G-frames in Hilbert spaces

open access: yesDemonstratio Mathematica
Inspired by some recent work on the quantum detection problem by discrete frames and continuous frames, in this article, we examine the quantum detection problem with G-frames.
Hong Guoqing, Wan Linbin, Zhang Jianxia
doaj   +1 more source

Full operators and algebras generated by invertible operators

open access: yes, 2009
In the present work we characterized full operators and we showed some properties that have nonfull injectives operators. With the results developed for full operators, we affirmatively respond two questions formulated by Bravo and Feintuch on when the ...
R, Wilson R. Pacheco
core   +1 more source

Operators commuting with complex symmetric weighted composition operators on H 2

open access: yesConcrete Operators
In this article, we initially study when an anti-linear Toeplitz operator is in the commutant of a composition operator. Primarily, we investigate weighted composition operators Wg,ψ{W}_{g,\psi } commuting with complex symmetric weighted composition ...
Bhuia Sudip Ranjan
doaj   +1 more source

Study of the asymptotic eigenvalue distribution and trace formula of a second order operator-differential equation

open access: yesBoundary Value Problems, 2011
The purpose of writing this article is to show some spectral properties of the Bessel operator equation, with spectral parameter-dependent boundary condition.
Aslanova Nigar
doaj  

On the relation of the frame-related operators of fusion frame systems. [PDF]

open access: yesSampl Theory Signal Process Data Anal, 2023
Köhldorfer L, Balazs P.
europepmc   +1 more source

On the Normality of the Unbounded Product of Two Normal Operators

open access: yesConcrete Operators, 2012
Mortad Mohammed Hichem
doaj   +1 more source

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