Regular embeddings of multigraphs
  We prove that the vertex set of any twin-free multigraph G has an embedding into some point set P of some Euclidean space Rk, such that the automorphism group of G is isomorphic to the isometry group of Rk globally preserving P. 
Hubert De Fraysseix (CAMS), Patrice Ossona De Mendez (CAMS)