A characterization of indecomposable web modules over Khovanov–Kuperberg algebras

Autor: Louis-Hadrien Robert
Přispěvatelé: Laboratoire de Mathématiques Blaise Pascal (LMBP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Algebraic and Geometric Topology
Algebraic and Geometric Topology, 2015, 15 (3), pp.1303-1362. ⟨10.2140/agt.2015.15.1303⟩
Algebr. Geom. Topol. 15, no. 3 (2015), 1303-1362
ISSN: 1472-2747
1472-2739
DOI: 10.2140/agt.2015.15.1303⟩
Popis: After shortly recalling the construction of the Khovanov-Kuperberg algebras, we give a characterisation of indecomposable web-modules. It says that a web-module is indecomposable if and only if one can deduce it directly from the Kuperberg bracket (via a Schur lemma argument). The proofs relies on the construction of idempotents given by explicit foams. These foams are encoded by combinatorial data called red graphs. The key point is to show that when, for a web $w$ the Schur lemma does not apply, one can find an appropriate red graph for $w$.
46 pages, 53 figures, comments welcome
Databáze: OpenAIRE