Minimal and Primitive Terracini Loci of a Four-Dimensional Projective Space

Autor: Edoardo Ballico
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Axioms, Vol 13, Iss 1, p 50 (2024)
Druh dokumentu: article
ISSN: 13010050
2075-1680
DOI: 10.3390/axioms13010050
Popis: We study two quite different types of Terracini loci for the order d-Veronese embedding of an n-dimensional projective space: the minimal one and the primitive one (defined in this paper). The main result is that if n=4, d≥19 and x≤2d, no subset with x points is a minimal Terracini set. We give examples that show that the result is sharp. We raise several open questions.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje