# Structural properties of recursively partitionable graphs with connectivity 2

2 COATI - Combinatorics, Optimization and Algorithms for Telecommunications
Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués, CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : A connected graph G is said to be arbitrarily partitionable (AP for short) if for every partition ($n_1, ..., n_p$) of |V(G)| there exists a partition ($V_1, ..., V_p$) of V(G) such that each V_i induces a connected subgraph of G on $n_i$ vertices. Some stronger versions of this property were introduced, namely the ones of being online arbitrarily partitionable and recursively arbitrarily partitionable (OL-AP and R-AP for short, respectively), in which the subgraphs induced by a partition of G must not only be connected but also fulfil additional conditions. In this paper, we point out some structural properties of OL-AP and R-AP graphs with connectivity 2. In particular, we show that deleting a cut pair of these graphs results in a graph with a bounded number of components, some of whom have a small number of vertices. We obtain these results by studying a simple class of 2-connected graphs called balloons.
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Discussiones Mathematicae Graph Theory, University of Zielona Góra, 2017, 37, pp.89-115. 〈10.7151/dmgt.1925〉

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https://hal.archives-ouvertes.fr/hal-00672505
Contributeur : Julien Bensmail <>
Soumis le : mardi 7 novembre 2017 - 07:54:35
Dernière modification le : mercredi 7 novembre 2018 - 14:36:04
Document(s) archivé(s) le : jeudi 8 février 2018 - 12:24:58

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Olivier Baudon, Julien Bensmail, Florent Foucaud, Monika Pilsniak. Structural properties of recursively partitionable graphs with connectivity 2. Discussiones Mathematicae Graph Theory, University of Zielona Góra, 2017, 37, pp.89-115. 〈10.7151/dmgt.1925〉. 〈hal-00672505v4〉

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