On Chromatic Core Subgraph of Simple Graphs

Johan Kok; Sudev Naduvath; M. Jerlin Seles; U. Mary

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arXiv · 1803.01505

On Chromatic Core Subgraph of Simple Graphs

Johan Kok·Sudev Naduvath·M. Jerlin Seles·U. Mary

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Abstract

If distinct colours represent distinct technology types that are placed at the vertices of a simple graph in accordance to a minimum proper colouring, a disaster recovery strategy could rely on an answer to the question: "What is the maximum destruction, if any, the graph (a network) can undergo while ensuring that at least one of each technology type remain, in accordance to a minimum proper colouring of the remaining induced subgraph." In this paper, we introduce the notion of a chromatic core subgraph $H$ of a given simple graph $G$ in answer to the stated problem. Since for any subgraph $H$ of $G$ it holds that $\chi(H) \leq \chi(G)$, the problem is well defined.

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BibTeX RIS

Johan Kok, Sudev Naduvath, M. Jerlin Seles, U. Mary. 2018-03-05. On Chromatic Core Subgraph of Simple Graphs. https://arxiv.org/abs/1803.01505

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