activity
20002023
most citedInjective Hopf bimodules, cohomologies of infinite dimensional Hopf algebras and graded-commutativity of the Yoneda product

2 citations · 5 across the 13 of their papers we have counts for

collaborators

17 papers

math.KT2023

A combinatorial characterisation of d-Koszul and (D,A)-stacked monomial algebras that satisfy (Fg)

Ruaa Jawad, Nicole Snashall, Rachel Taillefer

Condition (Fg) was introduced in [6] to ensure that the theory of support varieties of a finite dimensional algebra, established by Snashall and Solberg, has some similar propertie…

math.KT2019

Koszul calculus of preprojective algebras

Roland Berger, Rachel Taillefer

We show that the Koszul calculus of a preprojective algebra, whose graph is distinct from A and A, vanishes in any (co)homological degree . Moreover, its (higher) co…

math.RT2017

First Hochschild cohomology group and stable equivalence classification of Morita type of some tame symmetric algebras

Rachel Taillefer

We use the dimension and the Lie algebra structure of the first Hochschild cohomology group to distinguish some algebras of dihedral, semi-dihedral and quaternion type up to stable…

math.RT2016

Stable Green ring of the Drinfeld doubles of the generalised Taft algebras (corrections and new results)

Karin Erdmann, Edward Green, Nicole Snashall +1

We return to the fusion rules for the Drinfeld double of the duals of the generalised Taft algebras that we studied in [9]. We first correct some proofs and statements in [9] that…

math.RT2015

Hochschild cohomology of relation extension algebras

Ibrahim Assem, M. Andrea Gatica, Ralf Schiffler +1

Let be the split extension of a finite dimensional algebra by a --bimodule . We define a morphism of associative graded algebras $φ^*:\HH^*(B)\rightarrow \HH^*(C)$…

math.RT2013

The Ext algebra of a Brauer graph algebra

Edward L Green, Sibylle Schroll, Nicole Snashall +1

In this paper we study finite generation of the Ext algebra of a Brauer graph algebra by determining the degrees of the generators. As a consequence we characterize the Brauer grap…