Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices

In this article, we determine upper and lower bounds for the spectral radius of nonnegative matrices. Introducing the notion of average 4-row sum of a nonnegative matrix, we extend various existing formulas for spectral radius bounds. We also refer to their equality cases if the matrix is irreducibl...

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Main Authors: Adam Maria, Aretaki Aikaterini
Format: Article
Language:English
Published: De Gruyter 2022-04-01
Series:Special Matrices
Subjects:
Online Access:https://doi.org/10.1515/spma-2022-0165
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author Adam Maria
Aretaki Aikaterini
author_facet Adam Maria
Aretaki Aikaterini
author_sort Adam Maria
collection DOAJ
description In this article, we determine upper and lower bounds for the spectral radius of nonnegative matrices. Introducing the notion of average 4-row sum of a nonnegative matrix, we extend various existing formulas for spectral radius bounds. We also refer to their equality cases if the matrix is irreducible, and we present numerical examples to make comparisons among them. Finally, we provide an application to special matrices such as the generalized Fibonacci matrices, which are widely used in applied mathematics and computer science problems.
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spelling doaj.art-842e4c9fbc314a298f4220f5676eea992022-12-22T03:40:28ZengDe GruyterSpecial Matrices2300-74512022-04-0110130832610.1515/spma-2022-0165Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matricesAdam Maria0Aretaki Aikaterini1Department of Computer Science and Biomedical Informatics, University of Thessaly, 2-4 Papasiopoulou str., P.O. 35131 Lamia, GreeceDepartment of Mathematics, University of Thessaly, 3rd km P.E.O. Lamia-Athina, P.O. 35100 Lamia, GreeceIn this article, we determine upper and lower bounds for the spectral radius of nonnegative matrices. Introducing the notion of average 4-row sum of a nonnegative matrix, we extend various existing formulas for spectral radius bounds. We also refer to their equality cases if the matrix is irreducible, and we present numerical examples to make comparisons among them. Finally, we provide an application to special matrices such as the generalized Fibonacci matrices, which are widely used in applied mathematics and computer science problems.https://doi.org/10.1515/spma-2022-0165nonnegative matrixspectral radius4-row sumaverage 4-row sumgeneralized fibonacci matrix15a1815a4211b39
spellingShingle Adam Maria
Aretaki Aikaterini
Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
Special Matrices
nonnegative matrix
spectral radius
4-row sum
average 4-row sum
generalized fibonacci matrix
15a18
15a42
11b39
title Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
title_full Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
title_fullStr Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
title_full_unstemmed Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
title_short Bounds for the spectral radius of nonnegative matrices and generalized Fibonacci matrices
title_sort bounds for the spectral radius of nonnegative matrices and generalized fibonacci matrices
topic nonnegative matrix
spectral radius
4-row sum
average 4-row sum
generalized fibonacci matrix
15a18
15a42
11b39
url https://doi.org/10.1515/spma-2022-0165
work_keys_str_mv AT adammaria boundsforthespectralradiusofnonnegativematricesandgeneralizedfibonaccimatrices
AT aretakiaikaterini boundsforthespectralradiusofnonnegativematricesandgeneralizedfibonaccimatrices