This paper presents a combinatorial study of the super plactic monoid type A, which is related to representations general linear Lie superalgebra. We introduce analogue Schützenberger’s jeu de taquin on structure tableaux over signed alphabet. show that this procedure transforms skew into Young compatible with congruence and it confluent. deduce properties relating insertion algorithms tableaux...

Let (R; m;k) be a local ring (commutative and Noetherian). We will discuss existence and uniqueness of direct-sum decompositions of nitely generated R-modules. One says that R has nite CM type provided there are only nitely many indecomposable maximal Cohen-Macaulay R-modules up to isomorphism. Among complete equicharacteristic hypersurface rings with k algebraically closed of characteristic 6 ...