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Hadamard Star Configurations
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Hadamard Star Configurations

Abstract

Bocci, Carlini, and Kileel have shown that the square-free Hadamard product of a finite set of points $Z$ that all lie on a line $\ell$ in $\mathbb{P}^n$ produces a star configuration of codimension $n$. In this paper we introduce a construction using the Hadamard product to construct star configurations of codimension $c$. In the case that $c = n= 2$, our construction produces the star configurations of Bocci, Carlini, and Kileel. We will call any star configuration that can be constructed using our approach a Hadamard star configuration. Our main result is a classification of Hadamard star configurations.

Authors

Carlini E; Catalisano MV; Guardo E; Van Tuyl A

Publication date

January 14, 2018

DOI

10.48550/arxiv.1801.04579

Preprint server

arXiv

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