Localization of the spectra of dual frames multipliers

Authors : Rosario CORSO

Pages : 238-245

Doi:10.33205/cma.1154703

View : 15 | Download : 13

Publication Date : 2022-12-01

Article Type : Research Paper

Abstract :This paper concerns dual frames multipliers, i.e. operators in Hilbert spaces consisting of analysis, multiplication and synthesis processes, where the analysis and the synthesis are made by two dual frames, respectively. The goal of the paper is to give some results about the localization of the spectra of dual frames multipliers, i.e. to identify regions of the complex plane containing the spectra using some information about the frames and the symbols.
Keywords : multipliers, dual frames, spectrum