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some results of frames in krein spaces
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نویسنده
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mahmodi mansoureh ,alijani azadeh
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منبع
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journal of mahani mathematical research - 2021 - دوره : 10 - شماره : 1 - صفحه:53 -67
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چکیده
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In recently years, frames in krein spaces had been considered. the paper presents a family of generators for a krein space by their frames. these generators are dual frames and operator dual frames corresponding to a given frame in a krein space. we characterize all generalized dual frames of a primary frame. also, approximately dual frames in a krein space are introduced and, we study the relation between approximately dual frames and operator duals in a krein space. finally, perturbation of frames in this space is considered.
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کلیدواژه
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approximately dual frames ,frames ,krein spaces ,operator dual frames
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آدرس
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vali-e-asr university, faculty of sciences, department of mathematic, iran, vali-e-asr university of rafsanjan, faculty of sciences, department of mathematics, iran
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پست الکترونیکی
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alijani@vru.ac.ir
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Authors
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