Gravitational collapse in pure Gauss-Bonnet gravity

We study the process of gravitational collapse in pure Gauss-Bonnet gravity. In the homogeneous dust collapse, we show that the D=7 pure Gauss-Bonnet theory has gravitational dynamics indistinguishable from Einstein's theory in D=4, meaning that collapsing particles feel the same potential as in the classical four-dimensional general relativistic case. In D7 it becomes stronger, with respect to general relativity. In the inhomogeneous dust collapse we find the mass modes in the expansion of the energy density in any dimensions that lead to either naked singularities or black holes as final states of collapse.