Results 21 to 30 of about 33,997 (183)

Fractal Tilings Based on Successive Adjacent Substitution Rule

open access: yesComplexity, 2018
A fractal tiling or f-tiling is a tiling which possesses self-similarity and the boundary of which is a fractal. f-tilings have complicated structures and strong visual appeal. However, so far, the discovered f-tilings are very limited since constructing
Peichang Ouyang   +3 more
doaj   +1 more source

Shape Tiling [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1996
Given a list $1\times 1, 1\times a, 1\times b, \dots, 1\times c$ of rectangles, with $a,b,\dots,c$ non-negative, when can $1\times{t}$ be tiled by positive and negative copies of rectangles which are similar (uniform scaling) to those in the list? We prove that such a tiling exists iff $t$ is in the field $Q(a,b,\dots,c)$.
Kevin Keating, Jonathan L. King
openaire   +2 more sources

Tilings in graphons [PDF]

open access: yesEuropean Journal of Combinatorics, 2021
25 pages, 5 figures; to appear in European Journal of ...
Jan Hladký, Ping Hu, Diana Piguet
openaire   +3 more sources

Symmetries of Monocoronal Tilings [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
The vertex corona of a vertex of some tiling is the vertex together with the adjacent tiles. A tiling where all vertex coronae are congruent is called monocoronal.
Dirk Frettlöh, Alexey Garber
doaj   +1 more source

Hard Tiling Problems with Simple Tiles [PDF]

open access: yesDiscrete & Computational Geometry, 2001
It is well-known that the question of whether a given finite region can be tiled with a given set of tiles is NP-complete. We show that the same is true for the right tromino and square tetromino on the square lattice, or for the right tromino alone. In the process, we show that Monotone 1-in-3 Satisfiability is NP-complete for planar cubic graphs.
Cristopher Moore, J. M. Robson
openaire   +2 more sources

Constructing and Visualizing Uniform Tilings

open access: yesComputers, 2023
This paper describes a system which takes user input of a pattern of regular polygons around one vertex and attempts to construct a uniform tiling with the same pattern at every vertex by adding one polygon at a time.
Nelson Max
doaj   +1 more source

Highly symmetric aperiodic structures -INVITED [PDF]

open access: yesEPJ Web of Conferences, 2021
The symmetries of periodic structures are severely constrained by the crystallographic restriction. In particular, in two and three spatial dimensions, only rotational axes of order 1, 2, 3, 4 or 6 are possible.
Grimm Uwe
doaj   +1 more source

Spherical Tiling by 12 Congruent Pentagons [PDF]

open access: yes, 2012
The tilings of the 2-dimensional sphere by congruent triangles have been extensively studied, and the edge-to-edge tilings have been completely classified. However, not much is known about the tilings by other congruent polygons.
Gao, Honghao, Shi, Nan, Yan, Min
core   +2 more sources

Complex tilings [PDF]

open access: yesJournal of Symbolic Logic, 2001
AbstractWe 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 withKolmogorov complexity of its (n×n)-squares. We construct tile sets for which this bound is tight: all (n×n)-squares in all tilings have complexity Ω(n).
Bruno Durand 0001   +2 more
openaire   +4 more sources

An n-Dimensional Generalization of the Rhombus Tiling [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2001
Several classic tilings, including rhombuses and dominoes, possess height functions which allow us to 1) prove ergodicity and polynomial mixing times for Markov chains based on local moves, 2) use coupling from the past to sample perfectly random tilings,
Joakim Linde   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy