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19972025
most citedThe Intrinsic Fundamental Group of a Linear Category

16 citations · 88 across the 33 of their papers we have counts for

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15 papers · 1 filter

math.RA2024

On the first -tilting Hochschild cohomology of an algebra

Claude Cibils, Marcelo Lanzilotta, Eduardo N. Marcos +1

In this paper we introduce, according to one of the main ideas of -tilting theory, the -Hochschild cohomology in degree one of a finite dimensional -algebra , where …

math.RA2023★ 1 cited

Strongly stratifying ideals, Morita contexts and Hochschild homology

Claude Cibils, Marcelo Lanzilotta, Eduardo N. Marcos +1

We consider stratifying ideals of finite dimensional algebras in relation with Morita contexts. A Morita context is an algebra built on a data consisting of two algebras, two bimod…

math.RA2023

On of finite dimensional algebras

Claude Cibils

We review results on the first Hochschild cohomology vector space of a finite dimensional algebra, in particular for path algebras modulo a "pre-generated" ideal. In case of a mono…

math.RA2018

Deleting or adding arrows of a bound quiver algebra and Hochschild (co)homology

Claude Cibils, Marcelo Lanzilotta, Eduardo N. Marcos +1

We describe how the Hochschild (co)homology of a bound quiver algebra changes when adding or deleting arrows to the quiver. The main tools are relative Hochschild (co)homology, the…

math.RA2015★ 3 cited

The fundamental group of a Hopf linear category

Claude Cibils, Andrea Solotar

We define the fundamental group of a Hopf algebra over a field. For this purpose we first consider gradings of Hopf algebras and Galois coverings. The latter are given by linear ca…

math.RA2012★ 1 cited

A finite dimensional algebra of the diagram of a knot

Claude Cibils

To a regular projection of a knot we associate a finite dimensional non-commutative associative algebra which is self-injective and special biserial.