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Related papers: Domino tilings of generalized Aztec triangles

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We consider tiles (dimers) each of which covers two vertices of a rectangular lattice. There is a normalized translation invariant weighting on the shape of the tiles. We study the pressure, p, or entropy, (one over the volume times the…

Mathematical Physics · Physics 2010-03-03 Paul Federbush

In this paper, we propose to enumerate all different configurations belonging to a specific class of fractals: A binary initial tile is selected and a finite recursive tiling process is engaged to produce auto-similar binary patterns. For…

Combinatorics · Mathematics 2023-09-18 Hassan Douzi

A rectangulation is a tiling of a rectangle by a finite number of rectangles. The rectangulation is called generic if no four of its rectangles share a single corner. We initiate the enumeration of generic rectangulations up to…

Combinatorics · Mathematics 2026-05-13 Nathan Reading

In the prequel of the paper (arXiv:1803.02792), we considered exact enumerations of the cored versions of a doubly-intruded hexagon. The result generalized Ciucu's work about $F$-cored hexagons (Adv. Math. 2017). In this paper, we provide…

Combinatorics · Mathematics 2019-05-20 Tri Lai

In this paper, we study tilings of $\mathbb Z$, that is, coverings of $\mathbb Z$ by disjoint sets (tiles). Let $T=\{d_1,\ldots, d_s\}$ be a given multiset of distances. Is it always possible to tile $\mathbb Z$ by tiles, for which the…

Combinatorics · Mathematics 2024-04-03 Andrey Kupavskii , Elizaveta Popova

Discrete and continuous non-intersecting random processes have given rise to critical "infinite dimensional diffusions", like the Airy process, the Pearcey process and variations thereof. It has been known that domino tilings of very large…

Probability · Mathematics 2011-12-26 Mark Adler , Kurt Johansson , Pierre van Moerbeke

A (general) polygonal line tiling is a graph formed by a string of cycles, each intersecting the previous at an edge, no three intersecting. In 2022, Matsushita proved the matching complex of a certain type of polygonal line tiling with…

Combinatorics · Mathematics 2023-03-13 Margaret Bayer , Marija Jelić Milutinović , Julianne Vega

In this paper a closed form expression for the number of tilings of an $n\times n$ square border with $1\times 1$ and $2\times1$ cuisenaire rods is proved using a transition matrix approach. This problem is then generalised to $m\times n$…

Combinatorics · Mathematics 2016-11-01 M. Connolly

The work of Mills, Robbins, and Rumsey on cyclically symmetric plane partitions yields a simple product formula for the number of lozenge tilings of a regular hexagon, which are invariant under roation by $120^{\circ}$. In this paper we…

Combinatorics · Mathematics 2017-05-04 Tri Lai , Ranjan Rohatgi

A general construction yielding infinitely many families of $D(m^2)$-triples of triangular numbers is presented. Moreover, each triple obtained from this construction contains the same triangular number $T_n$.

Number Theory · Mathematics 2025-10-31 Marija Bliznac Trebješanin

We derive explicit rational generating functions for weighted tilings of $2k\times n$ rectangles by straight $k\times 1$ tiles. Our approach combines a decomposition by fault lines with a Hadamard-product framework. Tools from algebraic…

Combinatorics · Mathematics 2026-04-24 Mudit Aggarwal , Hrishik Koley , Samrith Ram

Surfaces in i-Al68Pd23Mn9 as observed with STM and LEED experiments show atomic terraces in a Fibonacci spacing. We analyze them in a bulk tiling model due to Elser which incorporates many experimental data. The model has dodecahedral…

Mathematical Physics · Physics 2009-10-31 Peter Kramer , Zorka Papadopolos , Harald Teuscher

We give a formula for the number of symmetric tilings of hexagons on the triangular lattice with unit triangles removed from arbitrary positions along two non-adjacent non-opposite sides. We show that for certain families of such regions,…

Combinatorics · Mathematics 2021-12-21 Daniel Condon

In their 2002 paper, Ciucu and Krattenthaler proved several product formulas for the number of lozenge tilings of various regions obtained from a centrally symmetric hexagon on the triangular lattice by removing maximal staircase regions…

Combinatorics · Mathematics 2013-09-19 Mihai Ciucu , Ilse Fischer

Links between uniform Aztec diamonds and random matrices are numerous in the literature. In particular \cite{johansson2006eigenvalues,Forrester} established that, under correct rescaling, the probability density function of a certain…

Mathematical Physics · Physics 2025-09-18 Nicolas Robert , Philippe Ruelle

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

It has been proven that the lozenge tilings of a quartered hexagon on the triangular lattice are enumerated by a simple product formula. In this paper we give a new proof for the tiling formula by using Kuo's graphical condensation. Our…

Combinatorics · Mathematics 2015-04-28 Tri Lai

We present a method to construct new tilting complexes from existing ones using tensor products, generalizing a result of Rickard. The endomorphism rings of these complexes are generalized matrix rings that are "componentwise" tensor…

Representation Theory · Mathematics 2013-02-19 Sefi Ladkani

The 1-2-3 conjecture has been solved positively in 2024 for finite graphs and by extension for infinite graphs which are locally finite. The solution is non-constructive, and finding explicit solutions for large (or infinite) graphs is very…

Combinatorics · Mathematics 2026-04-17 Alison Charlesworth , Christopher Ramsey , Nicolae Strungaru

In previous work [LM17], Tri Lai and the second author studied a family of subgraphs of the dP3 brane tiling, called Aztec castles, whose dimer partition functions provide combinatorial formulas for cluster variables resulting from…

Combinatorics · Mathematics 2024-09-10 Judy Hsin-Hui Chiang , Gregg Musiker , Son Nguyen