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Hauptverfasser: Kharaghani, Hadi, Zaitsev, Vlad
Format: Preprint
Veröffentlicht: 2025
Schlagworte:
Online-Zugang:https://arxiv.org/abs/2510.06489
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author Kharaghani, Hadi
Zaitsev, Vlad
author_facet Kharaghani, Hadi
Zaitsev, Vlad
contents This paper introduces and investigates a novel class of skew-regular Quaternary Hadamard matrices. For every odd prime power $p$, we establish the existence of these matrices for all orders $1+p^2$, each characterized by a constant row sum of $1-pi$. Motivated by the growing importance of large-excess matrices in the maximum determinant problem and quantum nonlocality, we demonstrate that this class provides a robust framework for generating Hadamard matrices with exceptionally large excess.
format Preprint
id arxiv_https___arxiv_org_abs_2510_06489
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A class of skew-regular quaternary Hadamard matrices
Kharaghani, Hadi
Zaitsev, Vlad
Combinatorics
This paper introduces and investigates a novel class of skew-regular Quaternary Hadamard matrices. For every odd prime power $p$, we establish the existence of these matrices for all orders $1+p^2$, each characterized by a constant row sum of $1-pi$. Motivated by the growing importance of large-excess matrices in the maximum determinant problem and quantum nonlocality, we demonstrate that this class provides a robust framework for generating Hadamard matrices with exceptionally large excess.
title A class of skew-regular quaternary Hadamard matrices
topic Combinatorics
url https://arxiv.org/abs/2510.06489