On balanced biregular cages

Fuente: arXiv
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Main Authors: Gabriela, Araujo-Pardo, György, Kiss
Format: Preprint
Published: 2026
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author Gabriela, Araujo-Pardo
György, Kiss
author_facet Gabriela, Araujo-Pardo
György, Kiss
contents In this paper, we introduce a problem closely related to the {\emph{Cage Problem}}. We are interested in {\emph{Balanced Biregular Cages}}, which are the smallest biregular graphs of fixed girth that have the same number of vertices of one degree as the other. We introduce the graphs and obtain lower and upper bounds for some values of degree and girth. In particular, we construct relatively small balanced biregular graphs from incidence graphs of finite projective, affine, and biaffine planes and we show that some of the obtained graphs are balanced biregular cages.
format Preprint
id arxiv_https___arxiv_org_abs_2604_22395
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle On balanced biregular cages
Gabriela, Araujo-Pardo
György, Kiss
Combinatorics
05C35, 51E15
In this paper, we introduce a problem closely related to the {\emph{Cage Problem}}. We are interested in {\emph{Balanced Biregular Cages}}, which are the smallest biregular graphs of fixed girth that have the same number of vertices of one degree as the other. We introduce the graphs and obtain lower and upper bounds for some values of degree and girth. In particular, we construct relatively small balanced biregular graphs from incidence graphs of finite projective, affine, and biaffine planes and we show that some of the obtained graphs are balanced biregular cages.
title On balanced biregular cages
topic Combinatorics
05C35, 51E15
url https://arxiv.org/abs/2604.22395