2 citations · 6 across the 6 of their papers we have counts for
6 papers
Multipliers and Wiener-Hopf operators on weighted L^p spaces
Violeta Petkova
We study the operators T on the weighted space L^p commuting either with the right translations St or left translations P^+S_{-t} and we establish the existence of a symbol of T. W…
Spectral results for operators commuting with translations on Banach spaces of sequences on Z^k and Z^+
Violeta Petkova
We study the spectrum of multipliers (bounded operators commuting with the shift operator S) on Banach spaces of sequences on Z and the spectrum of operators commuting with the shi…
Spectra of translations and Wiener-Hopf operators on Lw^2(R^+)
Violeta Petkova
We study the bounded operators on weighted spaces Lw^2 on R^+ commuting either with the right translations St or left translations and we establish the existence of a symbol for th…
Multipliers on Hilbert spaces of functions on R
Violeta Petkova
For a Hilbert space H included in L^1_{loc} (R) of functions on $R we obtain a representation theorem for the multipliers M commuting with the shift operator S. This generalizes th…
Multipliers and Toeplitz operators on Banach spaces of sequences
Violeta Petkova
We prove that every multiplier M (bounded operator commuting with the shift operator) on a large class of Banach spaces of sequences on Z is associated to a function essentially bo…
Wiener-Hopf operators on spaces of functions on R+ with values in a Hilbert space
Violeta Petkova
A Wiener-Hopf operator on a Banach space of functions on R+ is a bounded operator T such that P^+S_{-a}TS_a=T, for every positive a, where S_a is the operator of translation by a.…