Abstract
This paper considers the question of the influence of a coalition of vertices, seeking to gain control (or majority) in local neighborhoods in a general graph. Say that a vertex v is controlled by the coalition M if the majority of its neighbors are from M. We ask how many vertices (as a function of |M|) can M control in this fashion. Upper and lower bounds are provided for this problem, as well as for cases where the majority is computed over larger neighborhoods (either neighborhoods of some fixed radius r > 1, or all neighborhoods of radii up to r). In particular, we look also at the case where the coalition must control all vertices (including or excluding its own), and derive bounds for its size.
Original language | English |
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Pages (from-to) | 399-414 |
Number of pages | 16 |
Journal | Discrete Applied Mathematics |
Volume | 127 |
Issue number | 3 |
DOIs | |
State | Published - 1 May 2003 |
Externally published | Yes |
Bibliographical note
Funding Information:This work was partly supported by a grant from AFIRST and the Israel Ministry of Science and Arts (in the framework of the French–Israeli cooperation). Parts of this paper have appeared in preliminary form in [2,3] .
Funding
This work was partly supported by a grant from AFIRST and the Israel Ministry of Science and Arts (in the framework of the French–Israeli cooperation). Parts of this paper have appeared in preliminary form in [2,3] .
Funders | Funder number |
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AFIRST | |
Israel Ministry of Science and Arts |