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相关论文: Enumeration of Corona for Lozenge Tilings

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Motivated by the enumeration of a class of plane partitions studied by Proctor and by considerations about symmetry classes of plane partitions, we consider the problem of enumerating lozenge tilings of a hexagon with ``maximal staircases''…

组合数学 · 数学 2007-05-23 Mihai Ciucu , Christian Krattenthaler

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…

组合数学 · 数学 2015-04-28 Tri Lai

We deal with unweighted and weighted enumerations of lozenge tilings of a hexagon with side lengths $a,b+m,c,a+m,b,c+m$, where an equilateral triangle of side length $m$ has been removed from the center. We give closed formulas for the…

组合数学 · 数学 2007-05-23 Mihai Ciucu , Theresia Eisenkölbl , C. Krattenthaler , D. Zare

This article addresses the problem of enumerating the tilings of a plane by lozenges, under the restriction that these tilings be doubly periodic. Kasteleyn's Pfaffian method is applied to compute the generating function of those…

组合数学 · 数学 2010-02-15 Álvar Ibeas Martín

We study the limit shape of successive coronas of a tiling, which models the growth of crystals. We define basic terminologies and discuss the existence and uniqueness of corona limits, and then prove that corona limits are completely…

度量几何 · 数学 2018-09-10 Shigeki Akiyama , Jonathan Caalim , Katsunobu Imai , Hajime Kaneko

We obtain an explicit formula for a certain weighted enumeration of lozenge tilings of a hexagon with an arbitrary triangular hole. The complexity of our expression depends on the distance from the hole to the center of the hexagon. This…

组合数学 · 数学 2015-03-13 Hjalmar Rosengren

Rosengren found an explicit formula for a certain weighted enumeration of lozenge tilings of a hexagon with an arbitrary triangular hole. He pointed out that a certain ratio corresponding to two such regions has a nice product formula. In…

组合数学 · 数学 2019-06-12 Seok Hyun Byun

We give a formula for the number of lozenge tilings of a hexagon on the triangular lattice with unit triangles removed from arbitrary positions along two non-adjacent, non-opposite sides. Our formula implies that for certain families of…

组合数学 · 数学 2020-02-13 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…

组合数学 · 数学 2013-09-19 Mihai Ciucu , Ilse Fischer

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…

组合数学 · 数学 2015-09-21 Maxwell Hutchinson , Michael Widom

We consider tilings of quadriculated regions by dominoes and of triangulated regions by lozenges. We present an overview of results concerning tileability, enumeration and the structure of the space of tilings.

组合数学 · 数学 2007-05-23 Nicolau C. Saldanha , Carlos Tomei

We count tilings of a rectangle of integer sides m-1 and n-1 by a special set of tiles. The result is obtained fron the study of the kernel of the adjacency matrix of an n x n rectangular graph of Z x Z.

组合数学 · 数学 2007-05-23 Carlos Tomei , Tania Vieira

The enumeration of lozenge tilings of hexagons with holes has received much attention during the last three decades. One notable feature is that a lot of the recent development involved Kuo's graphical condensation. Motivated by Ciucu, Lai…

组合数学 · 数学 2021-07-08 Seok Hyun Byun

Proctor's work on staircase plane partitions yields an enumeration of lozenge tilings of a halved hexagon on the triangular lattice. Rohatgi recently extended this tiling enumeration to a halved hexagon with a triangle removed from the…

组合数学 · 数学 2017-09-08 Tri Lai

We $q$-enumerate lozenge tilings of a hexagon with three bowtie-shaped regions have been removed from three non-consecutive sides. The unweighted version of the result generalizes a problem posed by James Propp on enumeration of lozenge…

组合数学 · 数学 2015-10-06 Tri Lai

This paper presents an algorithm for computing the contraction of two-dimensional tensor networks on a square lattice; and we combine it with solving congruence equations to compute the exact enumeration (including weighted enumeration) of…

组合数学 · 数学 2025-08-19 Kai Liang

We generalize a special case of a theorem of Proctor on the enumeration of lozenge tilings of a hexagon with a maximal staircase removed, using Kuo's graphical condensation method. Additionally, we prove a formula for a weighted version of…

组合数学 · 数学 2015-10-16 Ranjan Rohatgi

We consider incomplete tilings of the equilateral triangle of edge length n that is subdivided into n^2 regular equilateral smaller unit triangles. Pairs of the unit triangles that share a side may be converted into lozenges, leaving some…

组合数学 · 数学 2020-07-28 Richard J. Mathar

In their unpublished work, Jockusch and Propp showed that a 2-enumeration of antisymmetric monotone triangles is given by a simple product formula. On the other hand, the author proved that the same formula counts the domino tilings of the…

组合数学 · 数学 2015-07-21 Tri Lai

This paper studies random lozenge tilings of general non-convex polygonal regions. We show that the pairwise interaction of the non-convexities leads asymptotically to new kernels and thus to new statistics for the tiling fluctuations. The…

数学物理 · 物理学 2018-11-21 Mark Adler , Kurt Johansson , Pierre van Moerbeke
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