The module of logarithmic derivations of a generic determinantal ideal
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- by Ricardo Burity and Cleto B. Miranda-Neto PDF
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Abstract:
An important problem in algebra and related fields (such as algebraic and complex analytic geometry) is to find an explicit, well-structured, minimal set of generators for the module of logarithmic derivations of classes of homogeneous ideals in polynomial rings. In this note we settle the case of the ideal $P\subset R=K[\{X_{i,j}\}]$ generated by the maximal minors of an $(n+1)\times n$ generic matrix $(X_{i,j})$ over an arbitrary field $K$ with $n\geq 2$. We also characterize when the derivation module of $R/P$ is Ulrich, and we investigate this property if we replace $R/P$ by determinantal rings arising from simple degenerations of the generic case.References
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Additional Information
- Ricardo Burity
- Affiliation: Departamento de Matemática, Universidade Federal da Paraiba, 58051-900, J. Pessoa, PB, Brazil
- MR Author ID: 1158285
- Email: ricardo@mat.ufpb.br
- Cleto B. Miranda-Neto
- Affiliation: Departamento de Matemática, Universidade Federal da Paraiba, 58051-900, J. Pessoa, PB, Brazil
- MR Author ID: 939006
- Email: cleto@mat.ufpb.br; cletoneto2011@hotmail.com
- Received by editor(s): December 29, 2018
- Received by editor(s) in revised form: December 12, 2019
- Published electronically: August 11, 2020
- Additional Notes: The second author is the corresponding author.
The second author was partially supported by CNPq grant 421440/2016-3. - Communicated by: Jerzy Weyman
- © Copyright 2020 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 148 (2020), 4621-4634
- MSC (2010): Primary 13C05, 13N15, 13C40, 14M12, 13C14; Secondary 13E15, 14M05, 13C15, 13H10
- DOI: https://doi.org/10.1090/proc/15142
- MathSciNet review: 4143381