Intersection norms on surfaces and Birkhoff cross sections

For every finite collection of curves on a surface, we define an associated (semi-)norm on the first homology group of the surface. The unit ball of the dual norm is the convex hull of its integer points. We give an interpretation of these points in terms of certain coorientations of the original co...

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Bibliographische Detailangaben

Hauptverfasser:	Dehornoy, Pierre, Cossarini, Marcos
Format:	Artikel
Sprache:	eng
Schlagworte:	Mathematics - Dynamical Systems Mathematics - Geometric Topology
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