Automorphisms of the Cube $n^d$
  Consider a hypergraph $H_n^d$ where the vertices are points of the $d$-dimensional combinatorial cube $n^d$ and the edges are all sets of $n$ points such that they are in one line. We study the structure of the group of automorphisms of $H_n^d$, i.e., permutations of points of $n^d$ preserving the edges. In this paper we provide a complete characterization. Moreover, we consider the Colored Cube Isomorphism problem of deciding whether for two colorings of the vertices of $H_n^d$ there exists an automorphism of $H_n^d$ preserving the colors. We show that this problem is ${\sf GI}$-complete. 
Pavel Dvo\v{r}\'ak, Tom\'a\v{s} Valla
cs.DM math.CO