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- W4287269701 abstract "A unit disk intersection representation (UDR) of a graph $G$ represents each vertex of $G$ as a unit disk in the plane, such that two disks intersect if and only if their vertices are adjacent in $G$. A UDR with interior-disjoint disks is called a unit disk contact representation (UDC). We prove that it is NP-hard to decide if an outerplanar graph or an embedded tree admits a UDR. We further provide a linear-time decidable characterization of caterpillar graphs that admit a UDR. Finally we show that it can be decided in linear time if a lobster graph admits a weak UDC, which permits intersections between disks of non-adjacent vertices." @default.
- W4287269701 created "2022-07-25" @default.
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- W4287269701 date "2021-03-15" @default.
- W4287269701 modified "2023-09-23" @default.
- W4287269701 title "Unit Disk Representations of Embedded Trees, Outerplanar and Multi-Legged Graphs" @default.
- W4287269701 doi "https://doi.org/10.48550/arxiv.2103.08416" @default.
- W4287269701 hasPublicationYear "2021" @default.
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