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Some Results on Maps That Factor through a Tree

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Züst R.

Analysis and Geometry in Metric Spaces

2015

tom 3

nr 1

We give a necessary and sufficient condition for a map deffned on a simply-connected quasi-convex metric space to factor through a tree. In case the target is the Euclidean plane and the map is Hölder continuous with exponent bigger than 1/2, such maps can be characterized by the vanishing of some integrals over winding number functions. This in particular shows that if the target is the Heisenberg group equipped with the Carnot-Carathéodory metric and the Hölder exponent of the map is bigger than 2/3, the map factors through a tree.

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1 Analysis and Geometry in Metric Spaces

1 Züst R.

1 2015

Wyniki wyszukiwania

Some Results on Maps That Factor through a Tree