scholarly journals Relaxed highest-weight modules III: Character formulae

2021 ◽  
Vol 393 ◽  
pp. 108079
Author(s):  
Kazuya Kawasetsu
Keyword(s):  
Highest Weight ◽  
Highest Weight Modules ◽  
Weight Modules

scholarly journals Factorization of the canonical bases for higher-level Fock spaces

2011 ◽  
Vol 55 (1) ◽  
pp. 23-51 ◽  
Author(s):  
Susumu Ariki ◽  
Nicolas Jacon ◽  
Cédric Lecouvey
Keyword(s):  
Fock Space ◽  
Fock Spaces ◽  
Transition Matrices ◽  
Canonical Bases ◽  
Highest Weight ◽  
Highest Weight Modules ◽  
Graphic Module ◽  
Module Structures ◽  
Weight Modules

AbstractThe level l Fock space admits canonical bases $\mathcal{G}_{e}$ and $\smash{\mathcal{G}_{\infty}}$. They correspond to $\smash{\mathcal{U}_{v}(\widehat{\mathfrak{sl}}_{e})}$ and $\mathcal{U}_{v}({\mathfrak{sl}}_{\infty})$-module structures. We establish that the transition matrices relating these two bases are unitriangular with coefficients in ℕ[v]. Restriction to the highest-weight modules generated by the empty l-partition then gives a natural quantization of a theorem by Geck and Rouquier on the factorization of decomposition matrices which are associated to Ariki–Koike algebras.

scholarly journals Verma modules over Virasoro-like algebras

2006 ◽  
Vol 80 (2) ◽  
pp. 179-191 ◽  
Author(s):  
Xian-Dong Wang ◽  
Kaiming Zhao
Keyword(s):  
Additive Group ◽  
Total Order ◽  
Verma Modules ◽  
Direct Sum ◽  
Highest Weight ◽  
Highest Weight Modules ◽  
Weight Modules

AbstractLet K be a field of characteristic 0, G the direct sum of two copies of the additive group of integers. For a total order ≺ on G, which is compatible with the addition, and for any ċ1, ċ2 ∈ K, we define G-graded highest weight modules M(ċ1, ċ2, ≺) over the Virasoro-like algebra , indexed by G. It is natural to call them Verma modules. In the present paper, the irreducibility of M (ċ1, ċ2, ≺) is completely determined and the structure of reducible module M (ċ1, ċ2, ≺)is also described.

scholarly journals Bounded Highest Weight Modules Over 𝔮(n)

2013 ◽  
Vol 2014 (22) ◽  
pp. 6111-6154 ◽  
Author(s):  
Maria Gorelik ◽  
Dimitar Grantcharov
Keyword(s):  
Highest Weight ◽  
Highest Weight Modules ◽  
Weight Modules
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