Facet ridge end points in crystal shapes

We study equilibrium crystal shapes (ECS) near facet ridge end points (ERE) by means of a numerical study of a body-centered solid-on-solid model on a square lattice with an enhanced uniaxial interaction range. This tests the stability of the so-called stochastic FRE point where the model maps exact ly onto one dimensional Kardar-Parisi-Zhang-type growth and where the local ECS is simple. We find that the generic shapes are more complex. They cont ain first-order faceted to rough. boundaries. terminating in Pokrovsky-Tala pov-type end points, and first-order ridges inside the rounded part of the ECS where two rough surface orientations coexist.