duals and approximate duals of g-frames in hilbert spaces

نویسندگان

m mirzaee azandaryani

department of mathematics, faculty of science, university of qom, qom, iran a khosravi

faculty of mathematical sciences and computer, kharazmi university, tehran, iran

چکیده

in this paper we get some results and applications for duals and approximate duals of g-frames in hilbert spaces. in particular, we consider the stability of duals and approximate duals under bounded operators and we study duals and approximate duals of g-frames in the direct sum of hilbert spaces. we also obtain some results for perturbations of approximate duals.

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عنوان ژورنال:
journal of linear and topological algebra (jlta)

جلد ۴، شماره ۰۴، صفحات ۲۵۹-۲۶۵

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