activity
20162022
most citedSemisimplicity and Indecomposable Objects in Interpolating Partition Categories

7 citations · 13 across the 8 of their papers we have counts for

collaborators

10 papers

math.RT2022

Interpolating PBW Deformations for the Orthosymplectic Groups

Johannes Flake, Verity Mackscheidt

We propose to use interpolation categories to study PBW deformations, and demonstrate this idea for the orthosymplectic supergroups. Employing a combinatorial calculus based on pse…

math.RT2021

Indecomposable objects in Khovanov-Sazdanovic's generalizations of Deligne's interpolation categories

Johannes Flake, Robert Laugwitz, Sebastian Posur

Khovanov and Sazdanovic recently introduced symmetric monoidal categories parameterized by rational functions and given by quotients of categories of two-dimensional cobordisms. Th…

math.RT2021★ 4 cited

The indecomposable objects in the center of Deligne's category

Johannes Flake, Nate Harman, Robert Laugwitz

We classify the indecomposable objects in the monoidal center of Deligne's interpolation category by viewing as a model-theoretic limit in rank and characteri…

math.GR2021

The groups satisfying a functional equation for some

Dominik Bernhardt, Tim Boykett, Alice Devillers +2

We study the groups with the curious property that there exists an element and a function such that holds for all . This propert…

math.RT2020★ 7 cited

Semisimplicity and Indecomposable Objects in Interpolating Partition Categories

Johannes Flake, Laura Maassen

We study Karoubian tensor categories which interpolate representation categories of families of so-called easy quantum groups in the same sense in which Deligne's interpolation cat…

math.GT2020

Strata of -Origamis

Johannes Flake, Andrea Thevis

Given a two-generated group of prime-power order, we investigate the singularities of origamis whose deck group acts transitively and is isomorphic to the given group. Geometric an…

math.RT2020★ 1 cited

Gröbner bases for fusion products

Johannes Flake, Ghislain Fourier, Viktor Levandovskyy

We provide a new approach towards the analysis of the fusion products defined by B.~Feigin and S.~Loktev in the representation theory of (truncated) current Lie algebras. We unders…

math.RT2019★ 1 cited

On the Monoidal Center of Deligne's Category Rep(S_t)

Johannes Flake, Robert Laugwitz

We explicitly compute a monoidal subcategory of the monoidal center of Deligne's interpolation category Rep(S_t), for t not necessarily a natural number, and we show that this subc…

math.RT2016

Barbasch-Sahi algebras and Dirac cohomology

Johannes Flake

We define a class of algebras which are distinguished by a PBW property and an orthogonality condition, and which we call Hopf-Hecke algebras, since they generalize the Drinfeld He…

math.RA2016

Hopf-Hecke algebras, infinitesimal Cherednik algebras, and Dirac cohomology

Johannes Flake, Siddhartha Sahi

Hopf-Hecke algebras and Barbasch-Sahi algebras were defined by the first named author (2016) in order to provide a general framework for the study of Dirac cohomology. The aim of t…