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arXiv · 2312.17618

Bessel sequences in Hilbert $C^{\ast}$-modules

Abdelilah Karara·Khadija Mabrouk
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Abstract

In this peaper we stady certain Bessel sequences $\left\{f_k\right\}_{k=1}^{\infty}$ in Hilbert C*- modules $\mathcal{H}$ for which operator $S$ defined by \ref{eq2} is of the form $\mathcal{T}+\xi I$, for some real number $\xi$ and a adjointable linear operator $\mathcal{T}$. Additionally, we investigate frames known as compact-tight frames, which have frame operators that are compact perturbations of constant multiples of the identity. As a conclusion, we provide a theory regarding the weaving of specific compact-tight frames.

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Abdelilah Karara, Khadija Mabrouk. 2023-12-29. Bessel sequences in Hilbert $C^{\ast}$-modules. https://arxiv.org/abs/2312.17618

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