Twisted Tensor Product, Smooth DG Algebras, and Noncommutative Resolutions of Singular Curves

New families of algebras and DG algebras with two simple modules are introduced and described. Using the twisted tensor product operation, we prove that such algebras have finite global dimension, and that the resulting DG algebras are smooth. This description allows us to show that some of these DG algebras determine smooth proper noncommutative curves that provide smooth minimal noncommutative resolutions for singular rational curves.

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Publication Details

Journal
Functional Analysis and Its Applications
Published
2024-12-01
DOI
https://doi.org/10.1134/s001626632404004x
Primary Topic
Algebraic structures and combinatorial models
Type
article
Field-Weighted Citation Impact
0.00
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article

Twisted Tensor Product, Smooth DG Algebras, and Noncommutative Resolutions of Singular Curves

Dmitri Olegovich Orlov
Functional Analysis and Its Applications
Algebraic structures and combinatorial models
article

Twisted Tensor Product, Smooth DG Algebras, and Noncommutative Resolutions of Singular Curves

Dmitri Olegovich Orlov
article en

Abstract

New families of algebras and DG algebras with two simple modules are introduced and described. Using the twisted tensor product operation, we prove that such algebras have finite global dimension, and that the resulting DG algebras are smooth. This description allows us to show that some of these DG algebras determine smooth proper noncommutative curves that provide smooth minimal noncommutative resolutions for singular rational curves.

Functional Analysis and Its ApplicationsVol. 58(4)
Russian Academy of Sciences (RU), Steklov Mathematical Institute (RU)
Openalex Percentile: Top 62%
Algebraic structures and combinatorial models
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