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All edge-to-edge tilings of the sphere by congruent regular triangles and congruent rhombi are classified as: (1) a $1$-parameter family of protosets each admitting a unique $(2a^3,3a^4)$-tiling like a triangular prism; (2) a $1$-parameter…

Combinatorics · Mathematics 2023-11-27 Qi Yuan , Erxiao Wang

Two-dimensional random tilings of rhombi can be seen as projections of two-dimensional membranes embedded in hypercubic lattices of higher dimensional spaces. Here, we consider tilings projected from a $D$-dimensional space. We study the…

Statistical Mechanics · Physics 2016-08-31 N. Destainville , M. Widom , R. Mosseri , F. Bailly

The edge-to-edge tilings of the sphere by congruent quadrilaterals of Type $a^2bc$ are classified as $3$ classes: a sequence of two-parameter families of $2$-layer earth map tilings with $2n$ $(n\ge3)$ tiles, a one-parameter family of…

Combinatorics · Mathematics 2022-07-26 Yixi Liao , Pinren Qian , Erxiao Wang , Yingyun Xu

We study hyperuniform properties for the square-triangle tilings. The tiling is generated by a local growth rule, where squares or triangles are iteratively attached to its boundary. The introduction of the probability $p$ in the growth…

Statistical Mechanics · Physics 2024-10-01 Akihisa Koga , Shiro Sakai , Yushu Matsushita , Tsutomu Ishimasa

We classify the dihedral edge-to-edge tilings of the sphere by regular polygons with gonality at least 5 and rhombi.

Combinatorics · Mathematics 2024-03-13 Ho Man Cheung , Hoi Ping Luk

In this paper we give a classification of tilings of the sphere by congruent quadrilaterals with exactly two equal edges. The tilings are the earth map tilings, $(p,q)$-earth map tilings and their flip modifications, and quadrilateral…

Combinatorics · Mathematics 2021-09-06 Ho Man Cheung , Hoi Ping Luk

Aperiodic tiling is a well-know area of research. First developed by mathematicians for the mathematical challenge they represent and the beauty of their resulting patterns, they became a growing field of interest when their practical use…

Metric Geometry · Mathematics 2021-10-19 Vincent Van Dongen

Every simple quadrangulation of the sphere is generated by a graph called a pseudo-double wheel with two local expansions (Brinkmann et al. "Generation of simple quadrangulations of the sphere." Discrete Math., Vol. 305, No. 1-3, pp. 33-54,…

Metric Geometry · Mathematics 2012-10-08 Yohji Akama

Complex structures are determined for surfaces with $S^2$ and $T^2$ topologies generated by the dynamical triangulation method. For a surface with $S^2$ topology the spacial distribution of the conformal mode is obtained, while for the case…

High Energy Physics - Lattice · Physics 2007-05-23 H. Kawai , N. Tsuda , T. Yukawa

We classify all edge-to-edge spherical isohedral 4-gonal tilings such that the skeletons are pseudo-double wheels. For this, we characterize these spherical tilings by a quadratic equation for the cosine of an edge-length. By the…

Metric Geometry · Mathematics 2018-10-16 Yohji Akama

We consider here square tilings of the plane. By extending the formalism introduced in [3] we build a correspondence between plane maps endowed with an harmonic vector and square tilings satisfying a condition of regularity. In the case of…

Combinatorics · Mathematics 2011-01-04 Mathieu Dutour Sikirić

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

Random tilings are interesting as idealizations of atomistic models of quasicrystals and for their connection to problems in combinatorics and algorithms. Of particular interest is the tiling entropy density, which measures the relation of…

Combinatorics · Mathematics 2015-09-21 Maxwell Hutchinson , Michael Widom

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. In this…

Combinatorics · Mathematics 2013-01-07 Honghao Gao , Nan Shi , Min Yan

A tile Hamiltonian (TH) replaces the actual atomic interactions in a quasicrystal with effective interactions between and within tiles. We study Al-Co-Ni and Al-Co-Cu decagonal quasicrystals described as decorated Hexagon-Boat-Star (HBS)…

Condensed Matter · Physics 2007-05-23 M. Widom , I. Al-Lehyani , M. Mihalkovic

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

We classify the dihedral edge-to-edge tilings of the sphere by squares and rhombi.

Combinatorics · Mathematics 2024-03-12 Hoi Ping Luk

$\SLR$ 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

A grid method using tiling by fundamental domain of simple 2D lattices is presented. It refer to a previous work done by Stampfli in $1986$ using two tilings by regular hexagons, one rotate by $\pi/2$ relatively to the other. This allows to…

Other Condensed Matter · Physics 2023-07-20 Jean-François Sadoc , Marianne Imperor-Clerc

We present a geometrical description of new canonical $d$-dimensional codimension one quasiperiodic tilings based on generalized Fibonacci sequences. These tilings are made up of rhombi in 2d and rhombohedra in 3d as the usual Penrose and…

Condensed Matter · Physics 2007-05-23 J. Vidal , R. Mosseri
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