Latin squares with three disjoint subsquares of the same order

Fuente: arXiv
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Main Authors: Kemp, Tara, Lefevre, James G.
Format: Preprint
Published: 2025
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author Kemp, Tara
Lefevre, James G.
author_facet Kemp, Tara
Lefevre, James G.
contents Given an integer partition $P = (h_1h_2\dots h_k)$ of $n$, a realization of $P$ is a latin square with disjoint subsquares of orders $h_1,h_2,\dots,h_k$. Most known results restrict either $k$ or the number of different integers in $P$. There is little known for partitions with arbitrary $k$ and subsquares of at least three orders. It has been conjectured that if $h_1=h_2=h_3\geq h_4\geq\dots\geq h_k$ then a realization of $P$ always exists. We prove this conjecture, and thus show the existence of realizations for many general partitions.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00364
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Latin squares with three disjoint subsquares of the same order
Kemp, Tara
Lefevre, James G.
Combinatorics
Given an integer partition $P = (h_1h_2\dots h_k)$ of $n$, a realization of $P$ is a latin square with disjoint subsquares of orders $h_1,h_2,\dots,h_k$. Most known results restrict either $k$ or the number of different integers in $P$. There is little known for partitions with arbitrary $k$ and subsquares of at least three orders. It has been conjectured that if $h_1=h_2=h_3\geq h_4\geq\dots\geq h_k$ then a realization of $P$ always exists. We prove this conjecture, and thus show the existence of realizations for many general partitions.
title Latin squares with three disjoint subsquares of the same order
topic Combinatorics
url https://arxiv.org/abs/2510.00364