par Delandtsheer, Anne ;Doyen, Jean
Référence Designs, codes and cryptography, 44, 1-3, page (217-221)
Publication Publié, 2007-09
Article révisé par les pairs
Résumé : We discuss the problem of existence of finite structures (groups, linear spaces, graphs, ...) with prescribed numbers of orbits of their automorphism groups on the various types of elements. © 2007 Springer Science+Business Media, LLC.