Category $\mcal O$ for polynomial toroidal algebras and its subalgebras
Representation Theory
2026-04-15 v2
Abstract
In this paper we study Category for the polynomial toroidal Lie algebras and its type subalgebras. We classify irreducible objects of category as unique irreducble quotient of standard modules. Surprisingly, costandard objects of category arrises from Shen-Larsson type modules. We determine necessary sufficient conditions for irreducibility of Shen-Larsson modules. Finally appeling structure of Shen-Larsson modules and Soergel Tilting module theory of \cite{Soe}, we compute charcter formulas for irreducible modules and indecomposable Tilting modules of category .
Keywords
Cite
@article{arxiv.2604.10764,
title = {Category $\mcal O$ for polynomial toroidal algebras and its subalgebras},
author = {Priyanshu Chakraborty},
journal= {arXiv preprint arXiv:2604.10764},
year = {2026}
}
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