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Related papers: The Thickness of K_1,n,n and K_2,n,n

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The thickness of a graph $G$ is the minimum number of planar subgraphs whose union is $G$. In this paper, we present sharp lower and upper bounds for the thickness of the Kronecker product $G\times H$ of two graphs $G$ and $H$. We also give…

Combinatorics · Mathematics 2019-01-25 Xia Guo , Yan Yang

The $4$-girth-thickness $\theta(4,G)$ of a graph $G$ is the minimum number of planar subgraphs of girth at least four whose union is $G$. In this paper, we obtain that the 4-girth-thickness of complete tripartite graph $K_{n,n,n}$ is…

Combinatorics · Mathematics 2020-10-13 Xia Guo , Yan Yang

The $g$-girth-thickness $\theta(g,G)$ of a graph $G$ is the minimum number of planar subgraphs of girth at least $g$ whose union is $G$. In this note, we give the $4$-girth-thickness $\theta(4,L(K_n))$ of the line graph of the complete…

Combinatorics · Mathematics 2022-01-21 Christian Rubio-Montiel

We define the geometric thickness of a graph to be the smallest number of layers such that we can draw the graph in the plane with straight-line edges and assign each edge to a layer so that no two edges on the same layer cross. The…

Combinatorics · Mathematics 2007-05-23 Michael B. Dillencourt , David Eppstein , Daniel S. Hirschberg

In this paper, we define the $4$-girth-thickness $\theta(4,G)$ of a graph $G$ as the minimum number of planar subgraphs of girth at least $4$ whose union is $G$. We obtain the $4$-girth-thickness of the arbitrary complete graph $K_n$…

Combinatorics · Mathematics 2018-10-03 Christian Rubio-Montiel

The $g$-girth-thickness $\theta(g,G)$ of a graph $G$ is the minimum number of planar subgraphs of girth at least $g$ whose union is $G$. In this paper, we determine the $6$-girth-thickness $\theta(6,K_n)$ of the complete graph $K_n$ in…

The $g$-girth-thickness $\theta(g,G)$ of a graph $G$ is the smallest number of planar subgraphs of girth at least $g$ whose union is $G$. In this paper, we calculate the $4$-girth-thickness $\theta(4,G)$ of the complete $m$-partite graph…

Combinatorics · Mathematics 2019-10-29 Christian Rubio-Montiel

The point-thickness $\theta'(G)$ of a graph $G$ is the minimum number of subsets into which the vertex set $V(G)$ of $G$ is partitioned such that each subset induces a planar subgraph. In this paper, we determine the point-thickness of…

Combinatorics · Mathematics 2026-02-24 Wenzhong Liu , Wangkai Zhang

The thickness $\theta(G)$ of a graph $G$ is the minimum number of planar spanning subgraphs into which the graph $G$ can be decomposed. It is a topological invariant of a graph, which was defined by W.T. Tutte in 1963 and also has important…

Combinatorics · Mathematics 2012-02-10 Yan Yang

The thickness $\theta(G)$ of a graph $G$ is the minimum number of planar spanning subgraphs into which the graph $G$ can be decomposed. As a topological invariant of a graph, it is a measurement of the closeness to planarity of a graph, and…

Combinatorics · Mathematics 2012-02-01 Yan Yang , Xiangheng Kong

Motivated by applications in graph drawing and information visualization, we examine the planar split thickness of a graph, that is, the smallest $k$ such that the graph is $k$-splittable into a planar graph. A $k$-split operation…

We prove that the geometric thickness of graphs whose maximum degree is no more than four is two. All of our algorithms run in O(n) time, where n is the number of vertices in the graph. In our proofs, we present an embedding algorithm for…

Computational Geometry · Computer Science 2007-05-23 Christian A. Duncan , David Eppstein , Stephen G. Kobourov

The thickness of a graph $G=(V,E)$ with $n$ vertices is the minimum number of planar subgraphs of $G$ whose union is $G$. A polyline drawing of $G$ in $\mathbb{R}^2$ is a drawing $\Gamma$ of $G$, where each vertex is mapped to a point and…

Computational Geometry · Computer Science 2016-05-02 Stephane Durocher , Debajyoti Mondal

We prove that in any strongly fan-planar drawing of a graph G the edges can be colored with at most three colors, such that no two edges of the same color cross. This implies that the thickness of strongly fan-planar graphs is at most…

Combinatorics · Mathematics 2022-08-29 Otfried Cheong , Maximilian Pfister , Lena Schlipf

This paper studies questions about duality between crossings and non-crossings in graph drawings via the notions of thickness and antithickness. The "thickness" of a graph $G$ is the minimum integer $k$ such that in some drawing of $G$, the…

Combinatorics · Mathematics 2019-07-15 Vida Dujmović , David R. Wood

An embedding of a graph in a book consists of a linear order of its vertices along the spine of the book and of an assignment of its edges to the pages of the book, so that no two edges on the same page cross. The book thickness of a graph…

Data Structures and Algorithms · Computer Science 2020-04-17 Michael A. Bekos , Michael Kaufmann , Fabian Klute , Sergey Pupyrev , Chrysanthi Raftopoulou , Torsten Ueckerdt

The skewness of a graph G is the minimum number of edges in G whose removal results in a planar graph. By appropriately introducing a weight to each edge of a graph, we determine, among other thing, the skewness of the generalized Petersen…

Combinatorics · Mathematics 2017-09-20 Gek L. Chia , Chan L. Lee , Yan Hao Ling

We determine the thickness of the Cartesian product $K_{6p+4} \square P_2$ for $p \ge 0$ and of the Cartesian product $K_8 \square P_m$ for $m \ge 1$, where $K_n$ and $P_m$ denote the complete graph on $n$ vertices and the path on $m$…

Combinatorics · Mathematics 2026-03-31 Kenta Noguchi

Let $G=(V,E)$ be a graph of order $n$ and let $1\leq k< n$ be an integer. The $k$-token graph of $G$ is the graph whose vertices are all the $k$-subsets of $V$, two of which are adjacent whenever their symmetric difference is a pair of…

Combinatorics · Mathematics 2018-02-21 Walter Carballosa , Ruy Fabila-Monroy , Jesús Leaños , Luis Manuel Rivera

We say that a (multi)graph $G = (V,E)$ has geometric thickness $t$ if there exists a straight-line drawing $\varphi : V \rightarrow \mathbb{R}^2$ and a $t$-coloring of its edges where no two edges sharing a point in their relative interior…

Computational Geometry · Computer Science 2024-07-01 Henry Förster , Philipp Kindermann , Tillmann Miltzow , Irene Parada , Soeren Terziadis , Birgit Vogtenhuber
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