中文
相关论文

相关论文: About Schauder frames and besselian Schauder frame…

200 篇论文

In this paper, we give a characterization and a some properties of a besselian sequences, which allows us to build some examples of a besselian Schauder frames. Also for a reflexive Banach spaces (with a besselian Schauder frames) we give…

泛函分析 · 数学 2023-04-13 Samir Kabbaj , Rafik Karkri , Zoubeir Hicham

We consider the stability of Schauder frames and besselian Schauder frames under perturbations. Our results are inspirit close to the results of Heil [18].

泛函分析 · 数学 2023-11-21 Samir Kabbaj , Rafik Karkri , Hicham Zoubeir

This paper studies Schauder frames in Banach spaces, a concept which is a natural generalization of frames in Hilbert spaces and Schauder bases in Banach spaces. The associated minimal and maximal spaces are introduced, as are shrinking and…

泛函分析 · 数学 2009-10-20 Rui Liu

Schauder bases are fundamental tools for analyzing the structure of Banach spaces. In this work, we show that Besselian Schauder frames (BSF) play a similar role in certain contexts. We first prove that every unconditional Schauder frame…

泛函分析 · 数学 2026-01-14 Rafik Karkri

In this paper, we prove the following results. There exists a Banach space without basis which has a Schauder frame. There exists an universal Banach space $B$ (resp. $\tilde{B}$) with a basis (resp. an unconditional basis) such that, a…

泛函分析 · 数学 2023-07-19 Rafik Karkri , Samir Kabbaj , Hamad Sidi Lafdal

We introduce the notion of a continuous Schauder frame for a Banach space. This is both a generalization of continuous frames and coherent states for Hilbert spaces and a generalization of unconditional Schauder frames for Banach spaces. As…

泛函分析 · 数学 2018-12-21 Joseph Eisner , Daniel Freeman

Paley-Wiener theorem for frames for Hilbert spaces, Banach frames, Schauder frames and atomic decompositions for Banach spaces are known. In this paper, we derive Paley-Wiener theorem for p-approximate Schauder frames for separable Banach…

泛函分析 · 数学 2020-12-08 K. Mahesh Krishna , P. Sam Johnson

We begin the study of characterizations of recently defined approximate Schauder frame (ASF) and its duals for separable Banach spaces. We show that, under some conditions, both ASF and its dual frames can be characterized for Banach…

泛函分析 · 数学 2020-10-22 K. Mahesh Krishna , P. Sam Johnson

We prove that a Schauder frame for any separable Banach space is shrinking if and only if it has an associated space with a shrinking basis, and that a Schauder frame for any separable Banach space is shrinking and boundedly complete if and…

泛函分析 · 数学 2012-02-14 Kevin Beanland , Daniel Freeman , Rui Liu

Notion of frames and Bessel sequences for metric spaces have been introduced. This notion is related with the notion of Lipschitz free Banach spaces. \ It is proved that every separable metric space admits a metric $\mathcal{M}_d$-frame.…

泛函分析 · 数学 2024-08-09 K. Mahesh Krishna

Difficulty in the construction of dual frames for a given Hilbert space led to the introduction of approximately dual frames in Hilbert spaces by Christensen and Laugesen. It becomes even more difficult in Banach spaces to construct duals.…

泛函分析 · 数学 2021-10-20 K. Mahesh Krishna , P. Sam Johnson

In this paper we consider perturbation of X_d-Bessel sequences, X_d-frames, Banach frames, atomic decompositions and X_d-Riesz bases in separable Banach spaces. Equivalence between some perturbation conditions is investigated.

泛函分析 · 数学 2012-06-18 Diana T. Stoeva

Frames and Bessel sequences in Fr\'echet spaces and their duals are defined and studied. Their relation with Schauder frames and representing systems is analyzed. The abstract results presented here, when applied to concrete spaces of…

泛函分析 · 数学 2017-02-22 José Bonet , Carmen Fernández , Antonio Galbis , Juan Miguel Ribera

In this short note we introduce and study a particular type of Schauder frames, namely, \Phi-Schauder frames.

泛函分析 · 数学 2013-02-26 L. K. Vashisht

We extend the concept of weaving Hilbert space frames to the Banach space setting. Similar to frames in a Hilbert space, we show that for any two approximate Schauder frames for a Banach space, every weaving is an approximate Schauder frame…

泛函分析 · 数学 2015-11-20 Peter G. Casazza , Daniel Freeman , Richard G. Lynch

The concept of (p,q)-pair frames is generalized to (l,l^*)-pair frames. Adjoint (conjugate) of a pair frames for dual space of a Banach space is introduced and some conditions for the existence of adjoint (conjugate) of pair frames are…

泛函分析 · 数学 2012-08-10 Abolhassan Fereydooni , Ahmad Safapour , Asghar Rahimi

Necessary and sufficient conditions for a separable Banach space to be a dual space are proved. Some applications are discussed

泛函分析 · 数学 2010-03-12 Stefano Rossi

A very useful identity for Parseval frames for Hilbert spaces was obtained by Balan, Casazza, Edidin, and Kutyniok. In this paper, we obtain a similar identity for Parseval p-approximate Schauder frames for Banach spaces which admits a…

泛函分析 · 数学 2021-01-15 K. Mahesh Krishna , P. Sam Johnson

In this paper a new concept related to the frame theory is introduced; the notion of pair frame. By investigating some properties of such frames, it is shown that pair frames are a generalization of ordinary frames. Some classes of of them…

泛函分析 · 数学 2015-03-19 Abolhassan Fereydooni , Ahmad Safapour

We make a systematic study of frames for metric spaces. We prove that every separable metric space admits a metric $\mathcal{M}_d$-frame. Through Lipschitz-free Banach spaces we show that there is a correspondence between frames for metric…

泛函分析 · 数学 2020-11-04 K. Mahesh Krishna , P. Sam Johnson
‹ 上一页 1 2 3 10 下一页 ›