Ordres à distance minimum d'un tournoi et graphes partiels sans circuits maximaux
Ordres "C.A.C."
Ordres partiels et permutoèdre
Orthogonal polynomials represented by CW-spheres.
Orthomodular ordered sets and orthogonal closure spaces
Orthomodular Posets Can Be Organized as Conditionally Residuated Structures
It is proved that orthomodular posets are in a natural one-to-one correspondence with certain residuated structures.