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m-Koszul AS-regular algebras and twisted superpotentials Mori, Izuru
Description
This talk is based on a joint work with S. P. Smith. AS-regular algebras is an important class of algebras to study in noncommutative algebraic geometry. If S is an m-Koszul AS-regular algebra, then it was observed by several people that S is determined by a twisted superpotential. In this talk, we will see that such a twisted superpotential is uniquely determined by S up to non-zero scalar multiples and plays a crucial role in studying S. In particular, we will see in this talk that, using the twisted superpotential w_S associated to S, we can compute (1) the Nakayama automorphism of S, (2) a graded algebra automorphism of S, and (3) the homological determinant of a graded algebra automorphism of S (which is an essential ingredient for invariant theory of an AS-regular algebra). If time permits, we will present some applications to 3-dimensional noetherian Calabi-Yau algebras (which is partially based on a joint work with K. Ueyama).
Item Metadata
Title |
m-Koszul AS-regular algebras and twisted superpotentials
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2016-09-16T10:18
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Description |
This talk is based on a joint work with S. P. Smith. AS-regular
algebras is an important class of algebras to study in noncommutative
algebraic geometry. If S is an m-Koszul AS-regular algebra, then it was
observed by several people that S is determined by a twisted superpotential.
In this talk, we will see that such a twisted superpotential is uniquely
determined by S up to non-zero scalar multiples and plays a crucial role in
studying S. In particular, we will see in this talk that, using the twisted
superpotential w_S associated to S, we can compute (1) the Nakayama
automorphism of S, (2) a graded algebra automorphism of S, and (3) the
homological determinant of a graded algebra automorphism of S (which is an
essential ingredient for invariant theory of an AS-regular algebra). If
time permits, we will present some applications to 3-dimensional noetherian
Calabi-Yau algebras (which is partially based on a joint work with K.
Ueyama).
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Extent |
59 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Shizuoka University
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Series | |
Date Available |
2017-03-18
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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 |
10.14288/1.0343267
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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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