Toward a Canonical Representation of Blocked Rectangular Grids with an Application to Finite Tiling Problems

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Hauptverfasser: Jensen, Noah, Treneer, Stephanie
Format: Preprint
Veröffentlicht: 2025
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author Jensen, Noah
Treneer, Stephanie
author_facet Jensen, Noah
Treneer, Stephanie
contents Given the collection of all $m\times n$ rectangular grids which have a fixed number $1\leq r\leq mn$ of blocked cells, we explicitly describe a proper subset of the collection which is guaranteed to contain at least one grid from each equivalence class under symmetry, eliminating the majority of redundant grids. We analyze the extent to which redundant grids remain in the reduced set, and give general cases in which our methods exactly produce a complete set of canonical representatives for the equivalence classes. As an application of our results, we specify collections of polyomino tiling problems and find all solvable grids in each collection.
format Preprint
id arxiv_https___arxiv_org_abs_2511_20915
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Toward a Canonical Representation of Blocked Rectangular Grids with an Application to Finite Tiling Problems
Jensen, Noah
Treneer, Stephanie
Combinatorics
05B45, 05B50
Given the collection of all $m\times n$ rectangular grids which have a fixed number $1\leq r\leq mn$ of blocked cells, we explicitly describe a proper subset of the collection which is guaranteed to contain at least one grid from each equivalence class under symmetry, eliminating the majority of redundant grids. We analyze the extent to which redundant grids remain in the reduced set, and give general cases in which our methods exactly produce a complete set of canonical representatives for the equivalence classes. As an application of our results, we specify collections of polyomino tiling problems and find all solvable grids in each collection.
title Toward a Canonical Representation of Blocked Rectangular Grids with an Application to Finite Tiling Problems
topic Combinatorics
05B45, 05B50
url https://arxiv.org/abs/2511.20915