scholarly journals The symplectic plactic monoid, crystals, and MV cycles

2017 ◽  
Vol 286 (2) ◽  
pp. 439-497
Author(s):  
Jacinta Torres
Keyword(s):  
2014 ◽  
Vol 90 (1) ◽  
pp. 100-112 ◽  
Author(s):  
Łukasz Kubat ◽  
Jan Okniński
Keyword(s):  

2015 ◽  
Vol 423 ◽  
pp. 301-317 ◽  
Author(s):  
L.A. Bokut ◽  
Yuqun Chen ◽  
Weiping Chen ◽  
Jing Li

2009 ◽  
Vol DMTCS Proceedings vol. AK,... (Proceedings) ◽  
Author(s):  
Luis Serrano

International audience We introduce a shifted analog of the plactic monoid of Lascoux and Schützenberger, the \emphshifted plactic monoid. It can be defined in two different ways: via the \emphshifted Knuth relations, or using Haiman's mixed insertion. Applications include: a new combinatorial derivation (and a new version of) the shifted Littlewood-Richardson Rule; similar results for the coefficients in the Schur expansion of a Schur P-function; a shifted counterpart of the Lascoux-Schützenberger theory of noncommutative Schur functions in plactic variables; a characterization of shifted tableau words; and more.


2016 ◽  
Vol 15 (05) ◽  
pp. 1650082 ◽  
Author(s):  
Viktor Lopatkin

In this paper, we calculate the cohomology ring [Formula: see text] and the Hochschild cohomology ring of the plactic monoid algebra [Formula: see text] via the Anick resolution using a Gröbner–Shirshov basis.


2015 ◽  
Vol 25 (08) ◽  
pp. 1239-1263 ◽  
Author(s):  
Nohra Hage

We give an explicit presentation for the plactic monoid for type C using admissible column generators. Thanks to the combinatorial properties of symplectic tableaux, we prove that this presentation is finite and convergent. We obtain as a corollary that plactic monoids for type C satisfy homological finiteness properties.


2001 ◽  
Vol 11 (03) ◽  
pp. 301-334 ◽  
Author(s):  
JULIEN CASSAIGNE ◽  
MARC ESPIE ◽  
DANIEL KROB ◽  
JEAN-CHRISTOPHE NOVELLI ◽  
FLORENT HIVERT

Résumé: Cet article présente une étude combinatoire du monoïde Chinois, un monoïde ternaire proche du monoïde plaxique, fondé sur le schéma cba≡bca≡cab. Un algorithme proche de l'algorithme de Schensted nous permet de caractériser les classes d'équivalence et d'exhiber une section du monoïde. Nous énonçons également une correspondance de Robinson–Schensted pour le monoïde Chinois avant de nous intéresser au calcul du cardinal de certaines classes. Ce travail a permis de développer de nouveaux outils combinatoires. Entre autres, nous avons trouvé un plongement de chacune des classes d'équivalence dans la plus grande classe. Quant à la dernière partie de cet article, elle présente l'étude des relations de conjugaison. This paper presents a combinatorial study of the Chinese monoid, a ternary monoid related to the plactic monoid and based on the relation scheme cba≡bca≡cab. An algorithm similar to Schensted's algorithm yields a characterization of the equivalence classes and a cross-section theorem. We also establish a Robinson–Schensted correspondence for the Chinese monoid before computing the order of specific Chinese classes. For this work, we had to develop some new combinatorial tools. Among other things we discovered an embedding of every equivalence class in the largest one. Finally, the end of this paper is devoted to the study of conjugacy classes.


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