bien qu’ils soient partout dans l’œuvre, les stéréotypes de robbe-grillet (personnages, thèmes, matériaux stylistiques) n’ont encore jamais été étudiés de manière spécifique, détaillée, et à partir d’un large corpus. dans les limites de notre présente recherche, nous nous proposons d’étudier les stéréotypes relatifs aux personnages et, dans des cas très restreints, d’analyser les thèmes et les ...

N-free posets have recently taken some importance and motivated many studies. This class of posets introduced by Grillet [8] and Heuchenne [11] are very related to another important class of posets, namely the series-parallel posets, introduced by Lawler [12] and studied by Valdes et al. [21]. This paper shows how N-free posets can be considered as generalizations of series-parallel posets, by ...

Let SN(P) be the poset obtained by adding a dummy vertex on each diagonal edge of the N’s of a finite poset P. We show that SN(SN(P)) is N-free. It follows that this poset is the smallest N-free barycentric subdivision of the diagram of P, poset whose existence was proved by P.A. Grillet. This is also the poset obtained by the algorithm starting with P0 := P and consisting at step m of adding a...