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Hochschild cohomology of noncommutative planes and quadrics Belmans, Pieter
Description
The Hochschild cohomology of an abelian category describes the infinitesimal deformation theory of this abelian category in the sense of Lowen--Van den Bergh. Applying this to the category coh X for a variety X gives information on how the noncommutative deformations of this variety behave. In this talk I will explain how to compute the Hochschild cohomology of the abelian category qgr A for a quadratic (resp. cubic) 3-dimensional Artin--Schelter regular algebra, i.e. for a noncommutative projective plane (resp. noncommutative quadric surface). The main ingredients for this are the full and strong exceptional collection in the derived category and the classification of these algebras using the geometry of the point scheme.
Item Metadata
Title |
Hochschild cohomology of noncommutative planes and quadrics
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2016-09-12T16:30
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Description |
The Hochschild cohomology of an abelian category describes the infinitesimal deformation theory of this abelian category in the sense of Lowen--Van den Bergh. Applying this to the category coh X for a variety X gives information on how the noncommutative deformations of this variety behave.
In this talk I will explain how to compute the Hochschild cohomology of the abelian category qgr A for a quadratic (resp. cubic) 3-dimensional Artin--Schelter regular algebra, i.e. for a noncommutative projective plane (resp. noncommutative quadric surface). The main ingredients for this are the full and strong exceptional collection in the derived category and the classification of these algebras using the geometry of the point scheme.
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Extent |
64 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: University of Antwerp
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Series | |
Date Available |
2017-03-14
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0343165
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Graduate
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International