Resurgence and Waldschmidt constant of the ideal of a fat almost collinear subscheme in P2

Let Zn=p0+p1+...+pn be a configuration of points in P2, where all points pi except p0 lie on a line, and let I(Zn) be its corresponding homogeneous ideal in K[P2]. The resurgence and the Waldschmidt constant of I(Zn) in [5] have been computed. In this note, we compute these two invariants for the de...

Full description

Bibliographic Details
Main Authors: Hassan Haghighi, Mohammad Mosakhani, Mohammad Zaman Fashami
Format: Article
Language:deu
Published: Wydawnictwo Naukowe Uniwersytetu Pedagogicznego 2018-07-01
Series:Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica
Subjects:
Online Access:http://studmath.up.krakow.pl/index.php/studmath/article/view/292
Description
Summary:Let Zn=p0+p1+...+pn be a configuration of points in P2, where all points pi except p0 lie on a line, and let I(Zn) be its corresponding homogeneous ideal in K[P2]. The resurgence and the Waldschmidt constant of I(Zn) in [5] have been computed. In this note, we compute these two invariants for the defining ideal of a fat point subscheme Zn,c= cp0+p1+...+pn, i.e. the point p0 is considered with multiplicity c. Our strategy is similar to [5].
ISSN:2081-545X
2300-133X