Solar energy paper index
2-cell embeddings of cubic graphs I. The unstable dual
One-line summary
A solar energy research paper on 2-cell embeddings of cubic graphs I. The unstable dual.
Engineering notes
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Chinese explanation / 中文解读
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Original abstract
In this paper, the first of a two-part series, we explore 2-cell embeddings of cubic graphs, particularly those with small genus. Using local rotations, we introduce a new way of describing the space of 2-cell embeddings and their mutual relationship for any fixed (cubic) graph. We introduce the unstable dual of an embedding of a cubic graph, a subgraph of the dual graph, and describe how the genus of the corresponding embedding can be recovered from properties of the unstable dual. Finally, we characterize the unstable duals of embeddings with genus at most 2 of cubic cyclically 5-edge connected planar graphs and use these to generate those of genus 3 that have connectivity at most 2.
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