Nonsymmetric normal entry patterns with the maximum number of distinct indeterminates

Zejun Huang; Xingzhi Zhan

doi:10.1016/j.laa.2015.08.003

Nonsymmetric normal entry patterns with the maximum number of distinct indeterminates

Zejun Huang
, Xingzhi Zhan^*

^*此作品的通讯作者

数学科学学院

Hunan University

科研成果: 期刊稿件 › 文章 › 同行评审

4 引用（Scopus）

摘要

Abstract We prove that a nonsymmetric normal entry pattern of order n (n≥3) has at most n(n-3)/2+3 distinct indeterminates and up to permutation similarity this number is attained by a unique pattern which is explicitly described. An open problem is posed.

源语言	英语
文章编号	13316
页（从-至）	359-371
页数	13
期刊	Linear Algebra and Its Applications
卷	485
DOI	https://doi.org/10.1016/j.laa.2015.08.003
出版状态	已出版 - 17 8月 2015

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title = "Nonsymmetric normal entry patterns with the maximum number of distinct indeterminates",

abstract = "Abstract We prove that a nonsymmetric normal entry pattern of order n (n≥3) has at most n(n-3)/2+3 distinct indeterminates and up to permutation similarity this number is attained by a unique pattern which is explicitly described. An open problem is posed.",

keywords = "0-1 matrix, Entry pattern, Normal matrix",

author = "Zejun Huang and Xingzhi Zhan",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier Inc.",

year = "2015",

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day = "17",

doi = "10.1016/j.laa.2015.08.003",

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T1 - Nonsymmetric normal entry patterns with the maximum number of distinct indeterminates

AU - Huang, Zejun

AU - Zhan, Xingzhi

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N2 - Abstract We prove that a nonsymmetric normal entry pattern of order n (n≥3) has at most n(n-3)/2+3 distinct indeterminates and up to permutation similarity this number is attained by a unique pattern which is explicitly described. An open problem is posed.

AB - Abstract We prove that a nonsymmetric normal entry pattern of order n (n≥3) has at most n(n-3)/2+3 distinct indeterminates and up to permutation similarity this number is attained by a unique pattern which is explicitly described. An open problem is posed.

KW - 0-1 matrix

KW - Entry pattern

KW - Normal matrix

UR - https://www.scopus.com/pages/publications/84939225616

U2 - 10.1016/j.laa.2015.08.003

DO - 10.1016/j.laa.2015.08.003

M3 - 文章

AN - SCOPUS:84939225616

SN - 0024-3795

VL - 485

SP - 359

EP - 371

JO - Linear Algebra and Its Applications

JF - Linear Algebra and Its Applications

M1 - 13316

ER -

Nonsymmetric normal entry patterns with the maximum number of distinct indeterminates

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