A characterization of indecomposable web modules over Khovanov–Kuperberg algebras
A characterization of indecomposable web modules over Khovanov–Kuperberg algebras
After shortly reviewing the construction of the Khovanov-Kuperberg algebras, we give a characterization of indecomposable web modules.It says that a web module is indecomposable if and only if one can deduce its indecomposability directly from the Kuperberg bracket (via a Schur lemma argument).The proof relies on the construction of idempotents …