Please use this identifier to cite or link to this item: http://hdl.handle.net/10077/21598
Title: Veronesean almost binomial almost complete intersections
Authors: Kahle, Thomas
Wagner, André
Keywords: Veronesecomplete intersectionbinomial idealmultigrading
Issue Date: 2018
Publisher: EUT Edizioni Università di Trieste
Source: Thomas Kahle, André Wagner, "Veronesean almost binomial almost complete intersections", in: "Rendiconti dell’Istituto di matematica dell’Università di Trieste: an International Journal of Mathematics vol. 50 (2018)", Trieste, EUT Edizioni Università di Trieste, 2018, pp. 65-79
Abstract: 
The second Veronese ideal I$_{n}$ contains a natural complete
intersection J$_{n}$ of the same height, generated by the principal 2-minors
of a symmetric (n x n)-matrix. We determine subintersections of
the primary decomposition of J$_{n}$ where one intersectand is omitted.
If I$_{n}$ is omitted, the result is a direct link in the sense of complete
intersection liaison. These subintersections also yield interesting insights
into binomial ideals and multigraded algebra. For example, if n is even,
I$_{n}$ is a Gorenstein ideal and the intersection of the remaining primary
components of J$_{n}$ equals J$_{n}$+ 〈f〉 for an explicit polynomial f constructed
from the fibers of the Veronese grading map.
Type: Article
URI: http://hdl.handle.net/10077/21598
ISSN: 0049-4704
eISSN: 2464-8728
DOI: 10.13137/2464-8728/21598
Rights: Attribution-NonCommercial-NoDerivatives 4.0 Internazionale
Appears in Collections:Rendiconti dell’Istituto di matematica dell’Università di Trieste: an International Journal of Mathematics vol.50 (2018)

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