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Asghar Rahimi

Asghar Rahimi

Academic rank: Professor
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Education: PhD.
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Faculty: 1
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Research

Title
OPERATORS ON CONTROLLED K-G-FRAMES IN HILBERT SPACES
Type
JournalPaper
Keywords
Controlled g-frame, controlled K-g-frame, controlled frame operator
Year
2020
Journal Proceedings of the Institute of Mathematics and Mechanics
DOI
Researchers MARYAM FORUGHI ، ، Asghar Rahimi ، MOJGAN JAVAHERNIA

Abstract

Abstract. Controlled frames for spherical wavelets were introduced by Bogdanova et al. to get a numerically more efficient approximation algorithm. In this paper we propose some useful results about controlled K-g-frames, which are generalizations of K-g-frames. We show that if fΛigi2I is a CC0-controlled K-g-frame and U; K are bounded linear operators in a separable Hilbert space, then, under certain conditions, the sequences of operatorsfΛiUgi2I, fΛiU ∗gi2I are also CC0-controlled K-gframes. We also present the concept of CC0-controlled K-g-dual frame and extend some known equalities and inequalities. Finally we study the stability problem for perturbation of CC0-controlled K-g-frames.