Minimizers of anisotropic perimeters with cylindrical norms

We study various regularity properties of minimizers of the Φ-perimeter, where Φ is a norm. Under suitable assumptions on Φ and on the dimension of the ambient space, we prove that the boundary of a cartesian minimizer is locally a Lipschitz graph out of a closed singular set of small Hausdorff dimension. Moreover, we show the following anisotropic Bernsteintype result: any entire cartesian minimizer is the subgraph of a monotone function depending only on one variable.