Tight Bounds on the Minimum Size of a Dynamic Monopoly

Ahad N. Zehmakan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

Assume that you are given a graph G = (V,E) with an initial
coloring, where each node is black or white. Then, in discrete-time rounds
all nodes simultaneously update their color following a predefined deterministic rule. This process is called two-way r-bootstrap percolation, for
some integer r, if a node with at least r black neighbors gets black and
white otherwise. Similarly, in two-way α-bootstrap percolation, for some
0 <α< 1, a node gets black if at least α fraction of its neighbors are
black, and white otherwise. The two aforementioned processes are called
respectively r-bootstrap and α-bootstrap percolation if we require that
a black node stays black forever.
For each of these processes, we say a node set D is a dynamic monopoly
whenever the following holds: If all nodes in D are black then the graph
gets fully black eventually. We provide tight upper and lower bounds on
the minimum size of a dynamic monopoly.
Original languageEnglish
Title of host publicationLanguage and Automata Theory and Applications
Subtitle of host publication13th International Conference, LATA 2019, St. Petersburg, Russia, March 26-29, 2019, Proceedings
PublisherSpringer Cham
Pages381-393
ISBN (Print)978-3-030-13434-1
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event13th International Conference on Language and Automata Theory and Applications - St. Petersburg, Russian Federation
Duration: 26 Mar 201929 Mar 2019

Conference

Conference13th International Conference on Language and Automata Theory and Applications
Abbreviated titleLATA 2019
Country/TerritoryRussian Federation
CitySt. Petersburg
Period26/03/1929/03/19

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