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20042025
most citedHochschild cohomology, the characteristic morphism and derived deformations

16 citations · 68 across the 25 of their papers we have counts for

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math.KT2024

Filtered derived categories of curved deformations

Alessandro Lehmann, Wendy Lowen

We propose a solution to the "curvature problem" from arXiv:1505.03698 and arXiv:0905.3845 for infinitesimal deformations. Let be a field, a dg algebra over and $A_n =…

math.KT2020★ 5 cited

Operadic structure on the Gerstenhaber-Schack complex for prestacks

Hoang Dinh Van, Lander Hermans, Wendy Lowen

We introduce an operad which acts on the Gerstenhaber-Schack complex of a prestack as defined by Dinh Van and Lowen, and which in particular allows us to endow this complex with an…

math.KT2019★ 6 cited

The -structure on the derived endomorphism algebra of the unit in a monoidal category

Wendy Lowen, Michel Van den Bergh

Consider a monoidal category which is at the same time abelian with enough projectives and such that projectives are flat on the right. We show that there is a -algebra…

math.KT2015

The Gerstenhaber-Schack complex for prestacks

Hoang Dinh Van, Wendy Lowen

Building on the work of Gerstenhaber and Schack for presheaves of algebras, we define a Gerstenhaber-Schack complex C_GS(A) for an arbitrary prestack A, that is a pseudofunctor tak…

math.KT2015★ 6 cited

The curvature problem for formal and infinitesimal deformations

Wendy Lowen, Michel Van den Bergh

We interpret all Maurer-Cartan elements in the formal Hochschild complex of a small dg category which is cohomologically bounded above in terms of torsion Morita deformations. This…

math.KT2013

Hochschild cohomology with support

Wendy Lowen

In this paper we investigate the functoriality properties of map-graded Hochschild complexes. We show that the category MAP of map-graded categories is naturally a stack over the c…