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We describe limits of line bundles on nodal curves in terms of toric arrangements associated to Voronoi tilings of Euclidean spaces. These tilings encode information on the relationship between the possibly infinitely many limits, and…

Combinatorics · Mathematics 2021-01-01 Omid Amini , Eduardo Esteves

We characterize the existence of a polynomial (rational) matrix when its eigenstructure (complete structural data) and some of its rows are prescribed. For polynomial matrices, this problem was solved in a previous work when the polynomial…

Spectral Theory · Mathematics 2025-04-15 Agurtzane Amparan , Itziar Baragaña , Silvia Marcaida , Alicia Roca

We define a notion of tiling of the full infinite $p$-ary tree, establishing a series of equivalent criteria for a subtree to be a tile, each of a different nature; namely, geometric, algebraic, graph-theoretic, order-theoretic, and…

General Topology · Mathematics 2021-09-23 Alberto Cobos , Luis M. Navas

A tiling of a vector space $S$ is the pair $(U,V)$ of its subsets such that every vector in $S$ is uniquely represented as the sum of a vector from $U$ and a vector from $V$. A tiling is connected to a perfect codes if one of the sets, say…

Combinatorics · Mathematics 2024-06-14 Denis S. Krotov

A toric cube is a subset of the standard cube defined by binomial inequalities. These basic semialgebraic sets are precisely the images of standard cubes under monomial maps. We study toric cubes from the perspective of topological…

Combinatorics · Mathematics 2012-08-21 Alexander Engström , Patricia Hersh , Bernd Sturmfels

We give a simple proof of T. Stehling's result, that in any normal tiling of the plane with convex polygons with number of sides not less than six, all tiles except the finite number are hexagons.

Metric Geometry · Mathematics 2018-05-07 Arseniy Akopyan

There is a rich history of domino tilings in two dimensions. Through a variety of techniques we can answer questions such as: how many tilings are there of a given region or what does the space of all tilings look like? These questions and…

Combinatorics · Mathematics 2025-07-31 Caroline J. Klivans , Nicolau C. Saldanha

We solve a problem of R. Nandakumar by proving that there is no tiling of the plane with pairwise noncongruent triangles of equal area and equal perimeter. We also show that no convex polygon with more than three sides can be tiled with…

Combinatorics · Mathematics 2018-04-12 Andrey Kupavskii , János Pach , Gábor Tardos

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.

Combinatorics · Mathematics 2007-05-23 Carlos Tomei , Tania Vieira

A tiling of a topological disc by topological discs is called monohedral if all tiles are congruent. Maltby (J. Combin. Theory Ser. A 66: 40-52, 1994) characterized the monohedral tilings of a square by three topological discs. Kurusa,…

Metric Geometry · Mathematics 2023-06-27 Bushra Basit , Zsolt Lángi

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

We study tilings of regions in the square lattice with L-shaped trominoes. Deciding the existence of a tiling with L-trominoes for an arbitrary region in general is NP-complete, nonetheless, we identify restrictions to the problem where it…

Computational Complexity · Computer Science 2020-03-25 Javier T. Akagi , Carlos F. Gaona , Fabricio Mendoza , Manjil P. Saikia , Marcos Villagra

The purpose of this paper is to give the flavor of the subject of self-similar tilings in a relatively elementary setting, and to provide a novel method for the construction of such polygonal tilings.

Metric Geometry · Mathematics 2016-11-08 Michael Barnsley , Andrew Vince

We consider the problem of partitioning a two-dimensional flat torus $T^2$ into $m$ sets in order to minimize the maximal diameter of a part. For $m \leqslant 25$ we give numerical estimates for the maximal diameter $d_m(T^2)$ at which the…

Metric Geometry · Mathematics 2024-02-07 Dmitry Protasov , Alexander Tolmachev , Vsevolod Voronov

We will show that a necessary and sufficient condition for a Ferrers board (or Young Diagrams) to be fully tileable with 1x2 dominoes requires the board to be 2-colorable such that no color is adjacent to its own color using both induction…

General Mathematics · Mathematics 2023-12-13 David Jiang

A tromino tiling problem is a packing puzzle where we are given a region of connected lattice squares and we want to decide whether there exists a tiling of the region using trominoes with the shape of an L. In this work we study a slight…

Data Structures and Algorithms · Computer Science 2021-03-16 Javier T. Akagi , Eduardo A. Canale , Marcos Villagra

We consider the rigidity and global rigidity of bar-joint frameworks in Euclidean $d$-space under additional dilation constraints in specified coordinate directions. In this setting we obtain a complete characterisation of generic rigidity.…

Combinatorics · Mathematics 2024-02-23 Sean Dewar , Anthony Nixon , Andrew Sainsbury

Tropicalization is a procedure that takes subvarieties of an algebraic torus to balanced weighted rational complexes in space. In this paper, we study the tropicalizations of curves in surfaces in 3-space. These are balanced rational…

Algebraic Geometry · Mathematics 2012-04-26 Tristram Bogart , Eric Katz

This paper presents a stochastic Wang tiling based technique to compress or reconstruct disordered microstructures on the basis of given spatial statistics. Unlike the existing approaches based on a single unit cell, it utilizes a finite…

Materials Science · Physics 2012-10-24 Jan Novák , Anna Kučerová , Jan Zeman

Computing the crossing number of a graph is one of the most classical problems in computational geometry. Both it and numerous variations of the problem have been studied, and overcoming their frequent computational difficulty is an active…

Computational Geometry · Computer Science 2024-12-18 Thekla Hamm , Fabian Klute , Irene Parada