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arXiv · 2512.06403

Hardness of Planarity for Weak Temporal Sequences of 2-Connected Graphs

Johannes Carmesin·Will J. Turner
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Abstract

A weak deletion sequence is a sequence $(G_1,\ldots,G_n)$ of graphs so that for each $i\in[n-1]$ either $G_i$ is isomorphic to a subgraph of $G_{i+1}$, or vice versa: $G_{i+1}$ is isomorphic to a subgraph of $G_i$. We prove that determining the simultaneous planar embeddability of weak deletion sequences of $2$-connected graphs is NP-hard.

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Johannes Carmesin, Will J. Turner. 2025-12-06. Hardness of Planarity for Weak Temporal Sequences of 2-Connected Graphs. https://arxiv.org/abs/2512.06403

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