Results 101 to 110 of about 128,027 (302)

Roman Domination of Cartesian Bundles of Cycles over Cycles

Mathematics
A Roman dominating function f of a graph G=(V,E) assigns labels from the set {0,1,2} to vertices such that every vertex labeled 0 has a neighbor labeled 2. The weight of an RDF f is defined as w(f)=∑v∈Vf(v), and the Roman domination number, γR(G), is the
Simon Brezovnik, Janez Žerovnik
doaj   +1 more source

Signed total Roman domination in graphs

Journal of Combinatorial Optimization, 2015
Published by De Gruyter Open ...
openaire   +4 more sources

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

Perfect Roman domination in middle graphs [PDF]

Discrete Mathematics Letters, 2021
Kijung Kim
doaj   +1 more source

On the Total Double Roman Domination

IEEE Access, 2019
Let G = (V, E) be a simple graph. A double Roman dominating function (DRDF) on G is a function f from the vertex set V of G into {0, 1, 2, 3} such that if f (u) = 0, then u must have at least two neighbors assigned 2 or one neighbor assigned 3 under f ...
Zehui Shao, Jafar Amjadi, Seyed Mahmoud Sheikholeslami, Mina Valinavaz   +3 more
doaj   +1 more source

Critical properties on Roman domination graphs [PDF]

, 2013
Álvaro Martínez-Pérez, Déborah Oliveros   +1 more
openalex   +1 more source

Domination parameters with number 2: interrelations and algorithmic consequences

, 2016
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, Bresar, Bostjan, Grippo, Luciano N., Milanic, Martin, Safe, Martin D.   +4 more
core  

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

Roman game domination subdivision number of a graph [PDF]

Transactions on Combinatorics, 2013
A {em Roman dominating function} on a graph $G = (V ,E)$ is a function $f : Vlongrightarrow {0, 1, 2}$ satisfying the condition that every vertex $v$ for which $f (v) = 0$ is adjacent to at least one vertex $u$ for which $f (u) = 2$. The {em weight} of a
Jafar Amjadi, Hossein Karami, Seyed Mahmoud Sheikholeslami, Lutz Volkmann   +3 more
doaj  

The Perfect Roman Domination of Some Cycle Related Graphs

, 2023
Abolape Deborah Akwu
openalex   +1 more source