activity
20102024
most citedPurely infinite -algebras associated to étale groupoids

19 citations · 24 across the 5 of their papers we have counts for

collaborators

8 papers

math.RT2024

Finite -algebra invariants via Lax type operators

Jonathan S. Brown

We use variations on Lax type operators to find explicit formulas for certain elements of finite -algebras. These give a complete set of generators for all finite -algebras o…

math.RT2017

On the variety of 1-dimensional representations of finite -algebras in low rank

Jonathan Brown, Simon M. Goodwin

Let be a simple Lie algebra over and let be nilpotent. We consider the finite -algebra associated to and the…

math.RT2016★ 1 cited

A Drinfeld presentation for the twisted Yangian

Jonathan S Brown

We define the Drinfeld generators for , the twisted Yangian associated to the Lie algebra . This allows us to define shifted twisted Yangians, w…

math.OA2014★ 19 cited

Purely infinite -algebras associated to étale groupoids

Jonathan Brown, Lisa Orloff Clark, Adam Sierakowski

Let be a Hausdorff, étale groupoid that is minimal and topologically principal. We show that is purely infinite simple if and only if all the nonzero positive elemen…

math.RT2011

Non-integral representation theory of even multiplicity finite W-algebras

Jonathan S. Brown, Simon M. Goodwin

We complete the classification of the finite dimensional irreducible representations of finite W-algebras associated to even multiplicity nilpotent elements in classical Lie algebr…

math.RT2011★ 2 cited

On changing highest weight theories for finite W-algebras

Jonathan S. Brown, Simon M. Goodwin

A highest weight theory for a finite W-algebra U(g,e) was developed in [BGK]. This leads to a strategy for classifying the irreducible finite dimensional U(g,e)-modules. The highes…