# Possible numbers ofx’s in an {x,y}-matrix with a given rank

Open Mathematics (2017)

• Volume: 15, Issue: 1, page 974-977
• ISSN: 2391-5455

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## Abstract

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Let x, y be two distinct real numbers. An {x, y}-matrix is a matrix whose entries are either x or y. We determine the possible numbers of x’s in an {x, y}-matrix with a given rank. Our proof is constructive.

## How to cite

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Chao Ma. "Possible numbers ofx’s in an {x,y}-matrix with a given rank." Open Mathematics 15.1 (2017): 974-977. <http://eudml.org/doc/288303>.

@article{ChaoMa2017,
abstract = {Let x, y be two distinct real numbers. An \{x, y\}-matrix is a matrix whose entries are either x or y. We determine the possible numbers of x’s in an \{x, y\}-matrix with a given rank. Our proof is constructive.},
author = {Chao Ma},
journal = {Open Mathematics},
keywords = {\{x, y\}-matrix; Rank; Number of x’s},
language = {eng},
number = {1},
pages = {974-977},
title = {Possible numbers ofx’s in an \{x,y\}-matrix with a given rank},
url = {http://eudml.org/doc/288303},
volume = {15},
year = {2017},
}

TY - JOUR
AU - Chao Ma
TI - Possible numbers ofx’s in an {x,y}-matrix with a given rank
JO - Open Mathematics
PY - 2017
VL - 15
IS - 1
SP - 974
EP - 977
AB - Let x, y be two distinct real numbers. An {x, y}-matrix is a matrix whose entries are either x or y. We determine the possible numbers of x’s in an {x, y}-matrix with a given rank. Our proof is constructive.
LA - eng
KW - {x, y}-matrix; Rank; Number of x’s
UR - http://eudml.org/doc/288303
ER -

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