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20162026
most citedHigher Deformations of Lie Algebra Representations II

3 citations · 5 across the 10 of their papers we have counts for

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12 papers · 1 filter

math.RT2026

Simple Harish-Chandra bimodules in positive characteristics

Lewis Groves, Lewis Topley, Matthew Westaway

Let be a standard reductive group over an algebraically closed field of positive characteristic and let . The category of Harish-Chandra b…

math.RT2026

Parabolic induction for modular finite -algebras

Simon Goodwin, Lewis Topley, Matt Westaway

We study the modules of minimal dimension for reduced enveloping algebras of Lie algebras of reductive algebraic groups using the theory of modular finite -algebras. First of al…

math.RT2026

Quantization of nilpotent coadjoint -orbit closures in positive characteristics

Filippo Ambrosio, Lewis Topley, Matthew Westaway

Let be a reductive group over an algebraically closed field of positive characteristic , good for the root system of . The closures of -orbits in the Hilbert nullcone…

math.RT2024

Two problems in the representation theory of reduced enveloping algebras

Matthew Westaway

In this paper we consider two problems relating to the representation theory of Lie algebras of reductive algebraic groups over algebraically closed fields ${\m…

math.RT2023

On induced completely prime primitive ideals in enveloping algebras of classical Lie algebras

Simon M. Goodwin, Lewis Topley, Matthew Westaway

A distinguished family of completely prime primitive ideals in the universal enveloping algebra of a reductive Lie algebra over are those ideals const…

math.RT2023

Tilting modules and highest weight theory for reduced enveloping algebras

Matthew Westaway

Let be a reductive algebraic group over an algebraically closed field of characteristic , and let be its Lie algebra. Given in stan…

math.RT2021

A note on Humphreys' conjecture on blocks

Matthew Westaway

Humphreys' conjecture on blocks parametrises the blocks of reduced enveloping algebras , where is the Lie algebra of a reductive algebraic group…

math.RT2021

On graded representations of modular Lie algebras over commutative algebras

Matthew Westaway

We develop the theory of a category which is a generalisation to non-restricted -modules of a category famously studied by Andersen, Jantzen and Soe…

math.RT2019★ 3 cited

Higher Deformations of Lie Algebra Representations II

Matthew Westaway

Steinberg's tensor product theorem shows that for semisimple algebraic groups the study of irreducible representations of higher Frobenius kernels reduces to the study of irreducib…

math.RT2018

Integration of Modules II: Exponentials

Dmitriy Rumynin, Matthew Westaway

We continue our exploration of various approaches to integration of representations from a Lie algebra $\mbox{Lie} (G)$ to an algebraic group in positive characteristic. In the…

math.RT2018★ 2 cited

Higher Deformations of Lie Algebra Representations I

Matthew Westaway

In the late 1980s, Friedlander and Parshall studied the representations of a family of algebras which were obtained as deformations of the distribution algebra of the first Frobeni…

math.RT2017

Integration of Modules I: Stability

Dmitriy Rumynin, Matthew Westaway

We explore the integration of representations from a Lie algebra to its algebraic group in positive characteristic. An integrable module is stable under the twists by group element…