Whittaker modules for classical Lie superalgebras

CW Chen - Communications in Mathematical Physics, 2021 - Springer
We classify simple Whittaker modules for classical Lie superalgebras in terms of their
parabolic decompositions. We establish a type of Miličić–Soergel equivalence of a category …

Whittaker categories, properly stratified categories and Fock space categorification for Lie superalgebras

CW Chen, SJ Cheng, V Mazorchuk - Communications in Mathematical …, 2023 - Springer
We study various categories of Whittaker modules over a type I Lie superalgebra realized as
cokernel categories that fit into the framework of properly stratified categories. These …

Tilting modules for classical Lie superalgebras

CW Chen, SJ Cheng… - Journal of the London …, 2021 - Wiley Online Library
We study tilting and projective‐injective modules in a parabolic BGG category O for an
arbitrary classical Lie superalgebra. We establish a version of Ringel duality for this type of …

Whittaker categories of quasi-reductive Lie superalgebras and quantum symmetric pairs

CW Chen, SJ Cheng - Forum of Mathematics, Sigma, 2024 - cambridge.org
We show that, for an arbitrary finite-dimensional quasi-reductive Lie superalgebra over
${\mathbb {C}} $ with a triangular decomposition and a character $\zeta $ of the nilpotent …

Kostant's problem for Whittaker modules

CW Chen - Letters in Mathematical Physics, 2024 - Springer
We study the classical problem of Kostant for Whittaker modules over Lie algebras and Lie
superalgebras. We give a sufficient condition for a positive answer to Kostant's problem for …

The primitive spectrum and category for the periplectic Lie superalgebra

CW Chen, K Coulembier - Canadian Journal of Mathematics, 2020 - cambridge.org
We solve two problems in representation theory for the periplectic Lie superalgebra for all
(not just simple or basic) classical Lie superalgebras and a category of Harish-Chandra …

Annihilator ideals and blocks of Whittaker modules over quasireductive Lie superalgebras

CW Chen - arXiv preprint arXiv:2108.07532, 2021 - arxiv.org
We extend Kostant's result on annihilator ideals of non-singular simple Whittaker modules
over Lie algebras to (possibly singular) simple Whittaker modules over Lie superalgebras …

Representations of the general linear Lie superalgebra in the BGG category 𝒪

J Brundan - Developments and Retrospectives in Lie Theory …, 2014 - Springer
This is a survey of some recent developments in the highest weight repesentation theory of
the general linear Lie superalgebra 𝔤 𝔩 n| m (ℂ) gl _ n | m (C). The main focus is on the …

The primitive spectrum of a basic classical Lie superalgebra

K Coulembier - Communications in Mathematical Physics, 2016 - Springer
Abstract We prove Conjecture 5.7 in Coulembier and Musson (Math. J., arXiv: 1409.2532),
describing all inclusions between primitive ideals for the general linear superalgebra in …

Bott–Borel–Weil theory and Bernstein–Gel'fand–Gel'fand reciprocity for Lie superalgebras

K Coulembier - Transformation Groups, 2016 - Springer
The main focus of this paper is Bott–Borel–Weil (BBW) theory for basic classical Lie
superalgebras. We take a purely algebraic self-contained approach to the problem. A new …