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math.GT2023
A Combinatorial Presentation for Branched Coverings of the 2-Sphere
Arcelino Bruno Lobato Do Nascimento
William Thurston (1946-2012) gave a combinatorial characterization for generic branched self-coverings of the two-sphere by associating a planar graph to them 10.48550/arXiv.1502.0…
math.GT2021
Branched coverings of the 2-sphere
Arcelino Bruno Lobato do Nascimento
Thurston obtained a combinatorial characterization for generic branched self-coverings that preserve the orientation of the oriented 2-sphere by associating a planar graph to them…