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Related papers: Spherical Tiling by 12 Congruent Pentagons

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We study the minimal complexity of tilings of a plane with a given tile set. We note that every tile set admits either no tiling or some tiling with O(n) Kolmogorov complexity of its n-by-n squares. We construct tile sets for which this…

Computational Complexity · Computer Science 2018-12-03 Bruno Durand , Leonid A. Levin , Alexander Shen

We describe families of plane-filling curves on any edge-to-edge tiling of the plane with regular polygons and finitely many classes of edges. It is shown how to partition the minimal number of edge classes from the group G of symmetries of…

Combinatorics · Mathematics 2023-12-04 Jörg Arndt , Julia Handl

Given a tiling of a 2D grid with several types of tiles, we can count for every row and column how many tiles of each type it intersects. These numbers are called the_projections_. We are interested in the problem of reconstructing a tiling…

Computational Complexity · Computer Science 2009-09-25 Marek Chrobak , Peter Couperus , Christoph Durr , Gerhard Woeginger

The problem of constructing a limit series of Penrose type partitions of a two-dimensional sphere is solved, which makes it possible to model quasicrystals possessing a point icosahedral group symmetry Ih. Images of polyhedron models are…

Materials Science · Physics 2018-04-24 Alexander S. Prokhoda

We present an exhaustive search of all families of convex pentagons which tile the plane. This research shows that there are no more than the already 15 known families. In particular, this implies that there is no convex polygon which…

Combinatorics · Mathematics 2017-08-02 Michael Rao

We study $C^1$-regular surfaces in $R^3$ that admit tilings by a finite number of rigid motion congruence classes of tiles. We construct examples with various topologies and present a framework for a systematic study, mainly concentrating…

Differential Geometry · Mathematics 2025-12-15 David Brander , Jens Gravesen

Square-tiled surfaces can be classified by their number of squares and their cylinder diagrams (also called realizable separatrix diagrams). For the case of $n$ squares and two cone points with angle $4 \pi$ each, we set up and parametrize…

Geometric Topology · Mathematics 2018-10-23 Sunrose T. Shrestha

We classify the special families of dihedral folding tilings of the sphere derived from the M\"obius triangle $(2,3,4)$. Our study emerges from the study of isometric foldings in the Riemann sphere and meets at the juncture of the triangle…

Combinatorics · Mathematics 2024-11-12 Catarina Avelino , Hoi Ping Luk , Altino Santos

An irregular vertex in a tiling by polygons is a vertex of one tile and belongs to the interior of an edge of another tile. In this paper we show that for any integer $k\geq 3$, there exists a normal tiling of the Euclidean plane by convex…

Metric Geometry · Mathematics 2019-12-02 Dirk Frettlöh , Alexey Glazyrin , Zsolt Lángi

The study of tilings is a major problem in many mathematical instances, which is studied in two main different approaches: when considering the existence (or obstructions to the existence) of a tiling with a given tile and the other…

Information Theory · Computer Science 2019-04-26 Gabriella Akemi Miyamoto

In this study, the properties of convex pentagons that can form rotationally symmetric edge-to-edge tilings are discussed. Because the rotationally symmetric tilings are formed by concave octagons that are generated by two convex pentagons…

Metric Geometry · Mathematics 2022-05-04 Teruhisa Sugimoto

By means of constructing a new edge-bending algorithm, we prove that every locally polyhedral tiling of $\mathbb{R}^3$ can be completely softened. A weaker form of this statement, for polyhedral space tilings, was conjectured by Domokos,…

Metric Geometry · Mathematics 2026-04-21 Gergely Ambrus , Dorottya Dancsó

Given a finite collection of two-dimensional tile types, the field of study concerned with covering the plane with tiles of these types exclusively has a long history, having enjoyed great prominence in the last six to seven decades. Much…

Statistical Mechanics · Physics 2024-12-24 Eduardo J. Aguilar , Valmir C. Barbosa , Raul Donangelo , Sergio R. Souza

We present a single, connected tile which can tile the plane but only non-periodically. The tile is hexagonal with edge markings, which impose simple rules as to how adjacent tiles are allowed to meet across edges. The first of these rules…

Metric Geometry · Mathematics 2021-10-19 James J. Walton , Michael F. Whittaker

Motivated by a question of Erd\"{o}s and inquiries by Beeson and Laczkovich, we explore the possible $N$ for which a triangle $T$ can tile into $N$ congruent copies of a triangle $R$. The \emph{reptile} cases (where $T$ is similar to $R$)…

Combinatorics · Mathematics 2026-04-07 Yan X Zhang

In this note we use techniques in the topology of 2-complexes to recast some tools that have arisen in the study of planar tiling questions. With spherical pictures we show that the tile counting group associated to a set $T$ of tiles and a…

Algebraic Topology · Mathematics 2015-07-10 Michael P. Hitchman

In this paper we introduce the notion of a spherical knot mosaic where a knot is represented by tiling the surface of a topological 2-sphere with 11 canonical knot mosaic tiles and show this gives rise to several novel knot (and link)…

Geometric Topology · Mathematics 2026-01-27 Ally Nagasawa-Hinck , Peyton Phinehas Wood

We develop a recursive formula for counting the number of rectangulations of a square, i.e the number of combinatorially distinct tilings of a square by rectangles. Our formula specializes to give a formula counting generic rectangulations,…

Combinatorics · Mathematics 2012-09-11 Jim Conant , Tim Michaels

$\SLR$ geometry is one of the eight 3-dimensional Thurston geometries, it can be derived from the 3-dimensional Lie group of all $2\times 2$ real matrices with determinant one. Our aim is to describe and visualize the {\it regular infinite…

Metric Geometry · Mathematics 2016-08-14 Jenő Szirmai

The present article studies combinatorial tilings of Euclidean or spherical spaces by polytopes, serving two main purposes: first, to survey some of the main developments in combinatorial space tiling; and second, to highlight some new and…

Metric Geometry · Mathematics 2010-05-24 Egon Schulte