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Cubic differentials and hyperbolic convex sets. (English) Zbl 1301.53040

The authors show that a properly convex domain \(\Omega \subset \mathbb R\text{P}^2\) is Gromov hyperbolic if and only if the volumes of the metric balls in \((\Omega, d_\Omega)\) have a uniform exponential growth rate and if they present a natural bijection between the moduli space of marked Gromov hyperbolic properly convex domains of \(\mathbb R\text{P}^2\) and the space of bounded holomorphic cubic differentials on the disk.

MSC:

53C23 Global geometric and topological methods (à la Gromov); differential geometric analysis on metric spaces
53C21 Methods of global Riemannian geometry, including PDE methods; curvature restrictions