Abstract
We introduce a new matrix \(\hat{{\mathfrak {F}}}_{\Lambda ^2}\) obtained by the product of the double band Fibonacci matrix \(\hat{{\mathfrak {F}}}\) and the \(\Lambda ^2\) matrix. We construct new Banach sequence spaces \(\ell _p^{\lambda ^2}(\hat{{\mathfrak {F}}})\) and \(\ell _\infty ^{\lambda ^2}(\hat{{\mathfrak {F}}})\) using this new matrix, and study their topological and inclusion properties. We further obtain the basis of \(\ell _p^{\lambda ^2}(\hat{{\mathfrak {F}}})\) and compute the \(\alpha \)-, \(\beta \)- and \(\gamma \)-duals of \(\ell _p^{\lambda ^2}(\hat{{\mathfrak {F}}})\) and \(\ell _\infty ^{\lambda ^2}(\hat{{\mathfrak {F}}}).\) Some characterization results related to the matrix classes \((\ell _p^{\lambda ^2}(\hat{{\mathfrak {F}}}),{\mathfrak {Y}})\) are stated and proved, where \({\mathfrak {Y}}\) is any of the space \(\ell _{\infty },\) c, \(c_0\) or \(\ell _1.\) The criteria for compactness of certain matrix operators from the space \(\ell _p^{\lambda ^2}(\hat{{\mathfrak {F}}})\) to the space \({\mathfrak {Y}}=\{\ell _{\infty },c,c_0,\ell _1\}\) are obtained.
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The authors thank the anonymous reviewer for making necessary comments to improvise the presentation of the paper.
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Braha, N.L., Hazarika, B. & Yaying, T. \(\Lambda ^2\)-Fibonacci sequence spaces. Adv. Oper. Theory 8, 48 (2023). https://doi.org/10.1007/s43036-023-00278-6
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DOI: https://doi.org/10.1007/s43036-023-00278-6
Keywords
- Fibonacci sequence
- Lambda sequence
- Sequence space
- Matrix transformations
- Hausdorff measure of non-compactness