The complexity of the bootstraping percolation and other problems

E Goles, P Montealegre-Barba, I Todinca - Theoretical Computer Science, 2013 - Elsevier
We study the problem of predicting the state of a vertex in automata networks, where the
state at each site is given by the majority function over its neighborhood. We show that for …

[HTML][HTML] On the complement graph and defensive k-alliances

JM Sigarreta, S Bermudo, H Fernau - Discrete Applied Mathematics, 2009 - Elsevier
In this paper, we obtain several tight bounds of the defensive k-alliance number in the
complement graph from other parameters of the graph. In particular, we investigate the …

[图书][B] Alliances in graphs: parameterized algorithms and on partitioning series-parallel graphs

RI Enciso - 2009 - search.proquest.com
Alliances are used to denote agreements between members of a group with similar
interests. Alliances can occur between nations, biological sequences, business cartels, and …

Defensive alliances in graphs: a survey

IG Yero, JA Rodríguez-Velázquez - arXiv preprint arXiv:1308.2096, 2013 - arxiv.org
A set $ S $ of vertices of a graph $ G $ is a defensive $ k $-alliance in $ G $ if every vertex of
$ S $ has at least $ k $ more neighbors inside of $ S $ than outside. This is primarily an …

[HTML][HTML] Aspects of upper defensive alliances

C Bazgan, H Fernau, Z Tuza - Discrete Applied Mathematics, 2019 - Elsevier
A defensive alliance in a graph G=(V, E) is a set of vertices S satisfying the condition that
every vertex v∈ S has at least as many neighbors (including itself) in S than it has in V∖ S …

Parameterized complexity of locally minimal defensive alliances

A Gaikwad, S Maity, SK Tripathi - Conference on Algorithms and Discrete …, 2021 - Springer
A defensive alliance in a graph G=(V, E) G=(V, E) is a set of vertices S satisfying the
condition that every vertex v ∈ S v∈ S has at least as many neighbours (including itself) in …

Globally minimal defensive alliances

A Gaikwad, S Maity - Information Processing Letters, 2022 - Elsevier
A defensive alliance in an undirected graph G=(V, E) is a nonempty set of vertices S
satisfying the condition that every vertex v∈ S has at least as many neighbours (including …

Dynamic monopolies in colored tori

S Brunetti, E Lodi… - 2011 IEEE International …, 2011 - ieeexplore.ieee.org
The information diffusion has been modeled as the spread of an information within a group
through a process of social influence, where the diffusion is driven by the so called …

On dissemination thresholds in regular and irregular graph classes

I Rapaport, K Suchan, I Todinca, J Verstraëte - Algorithmica, 2011 - Springer
We investigate the natural situation of the dissemination of information on various graph
classes starting with a random set of informed vertices called active. Initially active vertices …

Defensive alliances in regular graphs and circulant graphs

MG Araujo Pardo, E Barrière Figueroa - 2008 - upcommons.upc.edu
In this paper we study defensive alliances in some regular graphs. We determine which
subgraphs could a critical defensive alliance of a graph $ G $ induce, if $ G $ is $6 $-regular …