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In this paper, we continue the study of domino-tilings of Aztec diamonds. In particular, we look at certain ways of placing ``barriers'' in the Aztec diamond, with the constraint that no domino may cross a barrier. Remarkably, the number of…

组合数学 · 数学 2007-05-23 James Propp , Richard Stanley

A basic assumption of tiling theory is that adjacent tiles can meet in only a finite number of ways, up to rigid motions. However, there are many interesting tiling spaces that do not have this property. They have "fault lines", along which…

动力系统 · 数学 2007-05-23 Natalie Priebe Frank , Lorenzo Sadun

An N-tiling of triangle ABC by triangle T is a way of writing ABC as a union of N triangles congruent to T, overlapping only at their boundaries. The triangle T is the "tile". The tile may or may not be similar to ABC. In this paper we…

度量几何 · 数学 2026-05-05 Michael Beeson

This article examines the tilings of a strip with equilateral triangles. The number of ways in which the lattices can be covered with a combination of tiles of the two types of triangles is related to Pell's numbers. Additionally, the…

组合数学 · 数学 2025-03-19 Valcho Milchev

We formulate and prove a variational principle (in the sense of thermodynamics) for random domino tilings, or equivalently for the dimer model on a square grid. This principle states that a typical tiling of an arbitrary finite region can…

组合数学 · 数学 2012-03-15 Henry Cohn , Richard Kenyon , James Propp

In this paper, we prove that if a finite number of rectangles, every of which has at least one integer side, perfectly tile a big rectangle then there exists a strategy which reduces the number of these tiles (rectangles) without violating…

历史与综述 · 数学 2011-11-30 Sultan Hussain , Usman Ali

A famous result of D. Walkup is that an $m\times n$ rectangle may be tiled by T-tetrominos if and only if both $m$ and $n$ are multiples of 4. The "if" portion may be proved by tiling a $4\times 4$ block, and then copying that block to fill…

组合数学 · 数学 2024-02-05 Emily Feller , Robert Hochberg

In this thesis, we consider domino tilings of three-dimensional regions, especially those of the form $\mathcal{D} \times [0,N]$. In particular, we investigate the connected components of the space of tilings of such regions by flips, the…

组合数学 · 数学 2015-03-17 Pedro H. Milet

The manuscript studies configurations of non-overlapping non-bonding dominoes on finite rectangular boards of unit squares characterized by row and column number. The non-bonding dominoes are defined here by the requirement that any domino…

组合数学 · 数学 2024-04-30 Richard J. Mathar

Aperiodic tiling --- a form of complex global geometric structure arising through locally checkable, constant-time matching rules --- has long been closely tied to a wide range of physical, information-theoretic, and foundational…

组合数学 · 数学 2017-09-21 Chaim Goodman-Strauss

There is a natural generalization of domino tilings to tilings of a polygon by hexagons, or, dually, configurations of oriented curves that meet in triples. We show exactly when two such tilings can be connected by a series of moves…

组合数学 · 数学 2016-09-13 Dylan P. Thurston

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…

微分几何 · 数学 2025-12-15 David Brander , Jens Gravesen

We consider domino tilings of three-dimensional cubiculated manifolds with or without boundary, including subsets of Euclidean space and three-dimensional tori. In particular, we are interested in the connected components of the space of…

组合数学 · 数学 2021-06-17 Juliana Freire , Caroline J. Klivans , Pedro H. Milet , Nicolau C. Saldanha

We show that three dimensional cubes of any size can be tiled with trominoes and, when necessary, one or two singletons in any positions. Cubes of side length a multiple of three can always be tiled with trominoes (known), cubes of side…

组合数学 · 数学 2010-11-23 Norton Starr

In this paper we study colorings (or tilings) of the two-dimensional grid $\mathbb{Z}^2$. A coloring is said to be valid with respect to a set $P$ of $n\times m$ rectangular patterns if all $n\times m$ sub-patterns of the coloring are in…

离散数学 · 计算机科学 2022-06-06 Jarkko Kari , Etienne Moutot

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…

计算复杂性 · 计算机科学 2009-09-25 Marek Chrobak , Peter Couperus , Christoph Durr , Gerhard Woeginger

In the past three decades, the study of rhombus tilings and domino tilings of various plane regions has been a thriving subfield of enumerative combinatorics. Physicists classify such work as the study of dimer covers of finite graphs. In…

组合数学 · 数学 2024-01-19 James Propp

Inspired by the modelization of 2D materials systems, we characterize arrangements of identical nonflat squares in 3D. We prove that the fine geometry of such arrangements is completely characterized in terms of patterns of mutual…

数学物理 · 物理学 2021-08-05 Manuel Friedrich , Manuel Seitz , Ulisse Stefanelli

The modular design of planar phased arrays arranged on orthogonal polygon-shaped apertures is addressed and a new method is proposed to synthesize domino-tiled arrays fitting multiple, generally conflicting, requirements. Starting from an…

应用物理 · 物理学 2022-05-18 Paolo Rocca , Nicola Anselmi , Alessandro Polo , Andrea Massa

A polyomino is a polygonal region with axis parallel edges and corners of integral coordinates, which may have holes. In this paper, we consider planar tiling and packing problems with polyomino pieces and a polyomino container $P$. We give…

计算几何 · 计算机科学 2021-08-10 Anders Aamand , Mikkel Abrahamsen , Thomas D. Ahle , Peter M. R. Rasmussen