Canonical Thurston obstructions for sub-hyperbolic semi-rational branched coverings

Chen, Tao; Jiang, Yunping

doi:10.1090/S1088-4173-2013-00250-6

Canonical Thurston obstructions for sub-hyperbolic semi-rational branched coverings
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by Tao Chen and Yunping Jiang

Conform. Geom. Dyn. 17 (2013), 6-25

DOI: https://doi.org/10.1090/S1088-4173-2013-00250-6

Published electronically: January 23, 2013

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Abstract:

We prove that the canonical Thurston obstruction for a sub-hyper- bolic semi-rational branched covering exists if the branched covering is not CLH-equivalent to a rational map.

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