Results 111 to 120 of about 1,906 (145)
Some of the next articles are maybe not open access.

Centers of maximal outerplanar graphs

Journal of Graph Theory, 1980
AbstractThe center of a graph is defined to be the subgraph induced by the set of vertices that have minimum eccentricities (i.e., minimum distance to the most distant vertices). It is shown that only seven graphs can be centers of maximal outerplanar graphs.
openaire   +2 more sources

On dominating sets of maximal outerplanar graphs

open access: closedDiscrete Applied Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
C.N. Campos, Yoshiko Wakabayashi
openalex   +2 more sources

Connected domination in maximal outerplanar graphs

Discrete Applied Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Isolation number of maximal outerplanar graphs

Discrete Applied Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tokunaga, Shin-ichi   +2 more
openaire   +2 more sources

Domination and Outer Connected Domination in Maximal Outerplanar Graphs

Graphs and Combinatorics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Sombor index of maximal outerplanar graphs

open access: closedDiscrete Applied Mathematics
Let \(G = (V(G), E(G))\) be a graph. The degree of a vertex \(v\) in \(G\) is denoted by \(d(v)\). The Somber index of the graph \(G\) is defined as \(\operatorname{SO}(G) = \sum_{xy \in E(G)} \sqrt{d^2(x) + d^2(y)}\). In this paper, the authors prove that if \(G\) is a maximal outerplanar graph of order \(n\), then \[ \operatorname{SO}(G) \geq 4(2n ...
Yunping Li, Hanyuan Deng, Zikai Tang
openalex   +2 more sources

Boundary-type sets in maximal outerplanar graphs

Discrete Applied Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Allgeier, Benjamin, Kubicki, Grzegorz
openaire   +1 more source

When the maximal graph is planar, outerplanar, and ring graph

Discrete Mathematics, Algorithms and Applications, 2018
Let [Formula: see text] be a commutative ring with nonzero identity. Let [Formula: see text] denote the maximal graph associated to [Formula: see text], that is, [Formula: see text] is a graph with vertices as non-units of [Formula: see text], where two distinct vertices [Formula: see text] and [Formula: see text] are adjacent if and only if there is ...
Sharma, Arti, Gaur, Atul
openaire   +2 more sources

Orthogonal grid pointset embeddings of maximal outerplanar graphs

2014 International Conference on Electrical Engineering and Information & Communication Technology, 2014
An orthogonal drawing of a planar graph G is a drawing of G where each vertex is mapped to a point, each edge is drawn as a sequence of alternate horizontal and vertical line segments on the grid lines, and any two edges do not cross except at their common end. Clearly the maximum degree of G is at most 4 if G has an orthogonal drawing.
Naima Khan   +3 more
openaire   +1 more source

Chromatic number of square of maximal outerplanar graphs

Applied Mathematics-A Journal of Chinese Universities, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Home - About - Disclaimer - Privacy