activity
20002013
most citedOn representations of twisted group rings

4 citations · 11 across the 10 of their papers we have counts for

collaborators

10 papers

math.KT2013

On exact functors for Heller triangulated categories

Matthias Kuenzer

We show certain standard constructions of the theory of Verdier triangulated categories to be valid in the Heller triangulated framework as well; viz. Karoubi hull, exactness of ad…

math.KT2011

On adjoint functors of the Heller operator

Matthias Kuenzer

Given an abelian category A with enough projectives, we can form its stable category _A_ := A/Proj(A)$. The Heller operator Omega : _A_ -> _A_ is characterised on an object X by a…

math.KT2007★ 1 cited

Nonisomorphic Verdier octahedra on the same base

Matthias Kuenzer

We show by an example that in a Verdier triangulated category, there may exist two mutually nonisomorphic Verdier octahedra containing the same commutative triangle.

math.KT2006

Comparison of spectral sequences involving bifunctors

Matthias Kuenzer

Suppose given functors A x A' -F-> B -G-> C between abelian categories, an object X in A and an object X' in A' such that certain conditions hold. We show that, E_1-terms exempt, t…

math.CT2005

On lifting stable diagrams in Frobenius categories

Matthias Kuenzer

Suppose given a Frobenius category E, i.e. an exact category with a big enough subcategory B of bijectives. Let_E_ := E/B denote its classical stable category. For example, we may…

math.CT2005★ 1 cited

Heller triangulated categories

Matthias Kuenzer

Let E be a Frobenius category, let_E_ denote its stable category. The shift functor on_E_ induces a first shift functor on the category of acyclic complexes with entries in_E_ by p…