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Pullback metrics and homological obstructions to BLD remetrization of branched covers

Zhong, Deguang
arXiv (All) · Papers
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geometric-topologymetric-geometry
We characterize admissible BLD remetrizations of branched self-covers of spheres by linear local contractibility of their canonical pullback length metrics. A relative homology obstruction involving the total degree of an inverse image component yields uniform porosity of branch values. Explicit deg
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