/**
* True iff simplices are neighbors. Two simplices are neighbors if they are the same dimension
* and they share a facet.
*
* @param simplex the other Simplex
* @return true iff this Simplex is a neighbor of simplex
*/
public boolean isNeighbor(final Simplex<V> simplex) {
final HashSet<V> h = new HashSet<V>(this);
h.removeAll(simplex);
return (this.size() == simplex.size()) && (h.size() == 1);
}
