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2016 | OriginalPaper | Buchkapitel

Enumeration and Maximum Number of Minimal Connected Vertex Covers in Graphs

verfasst von : Petr A. Golovach, Pinar Heggernes, Dieter Kratsch

Erschienen in: Combinatorial Algorithms

Verlag: Springer International Publishing

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Abstract

Connected Vertex Cover is one of the classical problems of computer science, already mentioned in the monograph of Garey and Johnson [15]. Although the optimization and decision variants of finding connected vertex covers of minimum size or weight are well studied, surprisingly there is no work on the enumeration or maximum number of minimal connected vertex covers of a graph. In this paper we show that the maximum number of minimal connected vertex covers of a graph is \(O(1.8668^n)\), and these can be enumerated in time \(O(1.8668^n)\). For graphs of chordality at most 5, we are able to give a better upper bound, and for chordal graphs and distance-hereditary graphs we are able to give tight bounds on the maximum number of minimal connected vertex covers.

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Fußnoten
1
The computations have been done by computer.
 
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Metadaten
Titel
Enumeration and Maximum Number of Minimal Connected Vertex Covers in Graphs
verfasst von
Petr A. Golovach
Pinar Heggernes
Dieter Kratsch
Copyright-Jahr
2016
DOI
https://doi.org/10.1007/978-3-319-29516-9_20

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