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arXiv · 1509.00757

Variants of Plane Diameter Completion

Petr A. Golovach·Clément Requilé·Dimitrios M. Thilikos
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Abstract

The {\sc Plane Diameter Completion} problem asks, given a plane graph $G$ and a positive integer $d$, if it is a spanning subgraph of a plane graph $H$ that has diameter at most $d$. We examine two variants of this problem where the input comes with another parameter $k$. In the first variant, called BPDC, $k$ upper bounds the total number of edges to be added and in the second, called BFPDC, $k$ upper bounds the number of additional edges per face. We prove that both problems are {\sf NP}-complete, the first even for 3-connected graphs of face-degree at most 4 and the second even when $k=1$ on 3-connected graphs of face-degree at most 5. In this paper we give parameterized algorithms for both problems that run in $O(n^{3})+2^{2^{O((kd)^2\log d)}}\cdot n$ steps.

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Petr A. Golovach, Clément Requilé, Dimitrios M. Thilikos. 2015-09-02. Variants of Plane Diameter Completion. https://arxiv.org/abs/1509.00757

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