On ideal matrices whose entries are the generalized $ k- $Horadam numbers

Ideal matrices, which generalize circulant and $ r- $circulant matrices, play a key role in Ajtai's construction of collision-resistant hash functions. In this paper, we study ideal matrices whose entries are the generalized $ k- $Horadam numbers, which represent a generalization of second-orde...

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Main Authors: Man Chen, Huaifeng Chen
Format: Article
Language:English
Published: AIMS Press 2025-02-01
Series:AIMS Mathematics
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Online Access:https://www.aimspress.com/article/doi/10.3934/math.2025093
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author Man Chen
Huaifeng Chen
author_facet Man Chen
Huaifeng Chen
author_sort Man Chen
collection DOAJ
description Ideal matrices, which generalize circulant and $ r- $circulant matrices, play a key role in Ajtai's construction of collision-resistant hash functions. In this paper, we study ideal matrices whose entries are the generalized $ k- $Horadam numbers, which represent a generalization of second-order sequences and include many well-known sequences such as Fibonacci, Lucas, and Pell numbers as special cases. We derive two explicit formulas for calculating the eigenvalues and determinants of these matrices. Additionally, we obtain upper bounds for the spectral norm and the Frobenius norm of ideal matrices with generalized $ k- $Horadam number entries. These results not only extend existing findings on ideal matrices but also highlight the versatility and applicability of generalized $ k- $Horadam numbers in matrix theory and related fields.
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spelling doaj-art-2159b5e2ed4a450ba0ea00e60787fbc22025-08-20T01:54:41ZengAIMS PressAIMS Mathematics2473-69882025-02-011021981199710.3934/math.2025093On ideal matrices whose entries are the generalized $ k- $Horadam numbersMan Chen0Huaifeng Chen1The 6th Research Institute of China Electronics Corporation, Beijing 102209, ChinaThe 6th Research Institute of China Electronics Corporation, Beijing 102209, ChinaIdeal matrices, which generalize circulant and $ r- $circulant matrices, play a key role in Ajtai's construction of collision-resistant hash functions. In this paper, we study ideal matrices whose entries are the generalized $ k- $Horadam numbers, which represent a generalization of second-order sequences and include many well-known sequences such as Fibonacci, Lucas, and Pell numbers as special cases. We derive two explicit formulas for calculating the eigenvalues and determinants of these matrices. Additionally, we obtain upper bounds for the spectral norm and the Frobenius norm of ideal matrices with generalized $ k- $Horadam number entries. These results not only extend existing findings on ideal matrices but also highlight the versatility and applicability of generalized $ k- $Horadam numbers in matrix theory and related fields.https://www.aimspress.com/article/doi/10.3934/math.2025093ideal matrixgeneralized $ k- $horadam numbersspectral normseigenvalues
spellingShingle Man Chen
Huaifeng Chen
On ideal matrices whose entries are the generalized $ k- $Horadam numbers
AIMS Mathematics
ideal matrix
generalized $ k- $horadam numbers
spectral norms
eigenvalues
title On ideal matrices whose entries are the generalized $ k- $Horadam numbers
title_full On ideal matrices whose entries are the generalized $ k- $Horadam numbers
title_fullStr On ideal matrices whose entries are the generalized $ k- $Horadam numbers
title_full_unstemmed On ideal matrices whose entries are the generalized $ k- $Horadam numbers
title_short On ideal matrices whose entries are the generalized $ k- $Horadam numbers
title_sort on ideal matrices whose entries are the generalized k horadam numbers
topic ideal matrix
generalized $ k- $horadam numbers
spectral norms
eigenvalues
url https://www.aimspress.com/article/doi/10.3934/math.2025093
work_keys_str_mv AT manchen onidealmatriceswhoseentriesarethegeneralizedkhoradamnumbers
AT huaifengchen onidealmatriceswhoseentriesarethegeneralizedkhoradamnumbers