Embedding and Extension Properties of Hadamard Matrices Revisited

Hadamard matrices have many applications in several mathematical areas due to their special form and the numerous properties that characterize them. Based on a recently developed relation between minors of Hadamard matrices and using tools from calculus and elementary number theory, this work highli...

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Main Authors: Christou Dimitrios, Mitrouli Marilena, Seberry Jennifer
Format: Article
Language:English
Published: De Gruyter 2018-03-01
Series:Special Matrices
Subjects:
Online Access:https://doi.org/10.1515/spma-2018-0012
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author Christou Dimitrios
Mitrouli Marilena
Seberry Jennifer
author_facet Christou Dimitrios
Mitrouli Marilena
Seberry Jennifer
author_sort Christou Dimitrios
collection DOAJ
description Hadamard matrices have many applications in several mathematical areas due to their special form and the numerous properties that characterize them. Based on a recently developed relation between minors of Hadamard matrices and using tools from calculus and elementary number theory, this work highlights a direct way to investigate the conditions under which an Hadamard matrix of order n − k can or cannot be embedded in an Hadamard matrix of order n. The results obtained also provide answers to the problem of determining the values of the spectrum of the determinant function for specific orders of minors of Hadamard matrices by introducing an analytic formula.
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spelling doaj.art-f4c14e91968840d1bcf7b81ba4c8b2882022-12-21T21:49:10ZengDe GruyterSpecial Matrices2300-74512018-03-016115516510.1515/spma-2018-0012spma-2018-0012Embedding and Extension Properties of Hadamard Matrices RevisitedChristou Dimitrios0Mitrouli Marilena1Seberry Jennifer2Department of Science and Mathematics, Deree -The American College of Greece, 6 Gravias St. GR-15342, Athens, GreeceDepartment of Mathematics, National and Kapodistrian University of Athens, Panepistemiopolis GR-15773, Athens, GreeceSchool of Computing and Information Technology, University of Wollongong, Wollongong NSW 2522, AustraliaHadamard matrices have many applications in several mathematical areas due to their special form and the numerous properties that characterize them. Based on a recently developed relation between minors of Hadamard matrices and using tools from calculus and elementary number theory, this work highlights a direct way to investigate the conditions under which an Hadamard matrix of order n − k can or cannot be embedded in an Hadamard matrix of order n. The results obtained also provide answers to the problem of determining the values of the spectrum of the determinant function for specific orders of minors of Hadamard matrices by introducing an analytic formula.https://doi.org/10.1515/spma-2018-0012submatricesminorsdeterminant spectrumdifferentiation
spellingShingle Christou Dimitrios
Mitrouli Marilena
Seberry Jennifer
Embedding and Extension Properties of Hadamard Matrices Revisited
Special Matrices
submatrices
minors
determinant spectrum
differentiation
title Embedding and Extension Properties of Hadamard Matrices Revisited
title_full Embedding and Extension Properties of Hadamard Matrices Revisited
title_fullStr Embedding and Extension Properties of Hadamard Matrices Revisited
title_full_unstemmed Embedding and Extension Properties of Hadamard Matrices Revisited
title_short Embedding and Extension Properties of Hadamard Matrices Revisited
title_sort embedding and extension properties of hadamard matrices revisited
topic submatrices
minors
determinant spectrum
differentiation
url https://doi.org/10.1515/spma-2018-0012
work_keys_str_mv AT christoudimitrios embeddingandextensionpropertiesofhadamardmatricesrevisited
AT mitroulimarilena embeddingandextensionpropertiesofhadamardmatricesrevisited
AT seberryjennifer embeddingandextensionpropertiesofhadamardmatricesrevisited