Results 41 to 50 of about 107,030 (250)

Relating the Outer-Independent Total Roman Domination Number with Some Classical Parameters of Graphs [PDF]

open access: yesMediterranean Journal of Mathematics, 2022
For a given graph G without isolated vertex we consider a function f:V(G)→{0,1,2}\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage ...
A. Cabrera Martínez   +2 more
semanticscholar   +2 more sources

A Constructive Characterization of Vertex Cover Roman Trees

open access: yesDiscussiones Mathematicae Graph Theory, 2021
A Roman dominating function on a graph G = (V (G), E(G)) is a function f : V (G) → {0, 1, 2} satisfying the condition that every vertex u for which f (u) = 0 is adjacent to at least one vertex v for which f (v) = 2.
Martínez Abel Cabrera   +2 more
doaj   +1 more source

Coloring, location and domination of corona graphs [PDF]

open access: yes, 2012
A vertex coloring of a graph $G$ is an assignment of colors to the vertices of $G$ such that every two adjacent vertices of $G$ have different colors. A coloring related property of a graphs is also an assignment of colors or labels to the vertices of a ...
Aguilar, A. Rondón   +2 more
core   +4 more sources

Domination parameters with number 2: Interrelations and algorithmic consequences [PDF]

open access: yes, 2018
In this paper, we study the most basic domination invariants in graphs, in which number 2 is intrinsic part of their definitions. We classify them upon three criteria, two of which give the following previously studied invariants: the weak 2-domination ...
Bonomo, Flavia   +4 more
core   +2 more sources

Rainbow domination and related problems on some classes of perfect graphs [PDF]

open access: yes, 2015
Let $k \in \mathbb{N}$ and let $G$ be a graph. A function $f: V(G) \rightarrow 2^{[k]}$ is a rainbow function if, for every vertex $x$ with $f(x)=\emptyset$, $f(N(x)) =[k]$.
A Bertossi   +23 more
core   +2 more sources

The politics of historical economics: Wilhelm Roscher on democracy, socialism and Caesarism [PDF]

open access: yes, 2016
Wilhelm Friedrich Georg Roscher (1817-94) is generally remembered as a significant nineteenth-century German political economist and a contributor to the “German Historical School of Economics.” His work is usually placed in the context of a larger ...
McDaniel, Iain
core   +1 more source

Relativism and universalism in interrogation fairness: a comparative analysis between Europe and China [PDF]

open access: yes, 2012
This paper addresses Chinese interrogation rules from historical and comparative perspectives by relating them to the very different development of interrogation procedure in Europe.
Vander Beken, Tom, Wu, Wei
core   +2 more sources

Legal paternalism and the identity of Polish legal culture [PDF]

open access: yes, 2017
The project was financed by National Science Centre Poland (decision no. DEC-2012/05/B/HS5/01111)
Skuczyński, Paweł
core   +1 more source

On the complexity of some hop domination parameters

open access: yesElectronic Journal of Graph Theory and Applications, 2019
A hop Roman dominating function (HRDF) on a graph G = (V, E) is a function f : V → {0, 1, 2} having the property that for every vertex v ∈ V with f(v) = 0 there is a vertex u with f(u) = 2 and d(u, v) = 2. The weight of an HRDF f is the sum of its values
Nader Jafari Rad, Elahe Shabani
doaj   +1 more source

Positive law and the idea of freedom [PDF]

open access: yes, 2017
The project was financed by National Science Centre Poland (decision no. DEC-2012/05/B/HS5/01111); The following text was prepared as a part of a research grant financed by the National Science Center (Poland), No.
Bekrycht, Tomasz
core   +1 more source

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