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JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

Crystal graphs of irreducible U v([^(\mathfrak sl)] e) \mathcal{U}_{v}({\widehat{\mathfrak{sl}}_{e}}) -modules of level two and Uglov bipartitions

Nicolas Jacon
Université de Franche-Comté, UFR Sciences et Techniques 16 route de Gray 25 030 Besançon France

DOI: 10.1007/s10801-007-0078-z

Abstract

We give a simple description of the natural bijection between the set of FLOTW bipartitions and the set of Uglov bipartitions (which generalizes the set of Kleshchev bipartitions). These bipartitions, which label the crystal graphs of irreducible U v([^(\mathfrak sl)] e) \mathcal{U}_{v}({\widehat{\mathfrak{sl}}_{e}}) -modules of level two, naturally appear in the context of the modular representation theory of Hecke algebras of type B n .

Pages: 143–162

Keywords: keywords Hecke algebras; modular representations; canonical basis; crystal graph

Full Text: PDF

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