Geometric invariant theory for polarized curves
Author(s)
Bibliographic Information
Geometric invariant theory for polarized curves
（Lecture notes in mathematics, 2122）
Springer, c2014
Available at / 43 libraries
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Library, Research Institute for Mathematical Sciences, Kyoto University数研
L/N||LNM||2122200032307189
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Note
Other authors: Fabio Felici, Margarida Melo, Filippo Viviani
Includes bibliographical references (p. 205-208) and index
Description and Table of Contents
Description
We investigate GIT quotients of polarized curves. More specifically, we study the GIT problem for the Hilbert and Chow schemes of curves of degree d and genus g in a projective space of dimension d-g, as d decreases with respect to g. We prove that the first three values of d at which the GIT quotients change are given by d=a(2g-2) where a=2, 3.5, 4. We show that, for a>4, L. Caporaso's results hold true for both Hilbert and Chow semistability. If 3.5
Table of Contents
Introduction.- Singular Curves.- Combinatorial Results.- Preliminaries on GIT.- Potential Pseudo-stability Theorem.- Stabilizer Subgroups.- Behavior at the Extremes of the Basic Inequality.- A Criterion of Stability for Tails.- Elliptic Tails and Tacnodes with a Line.- A Strati_cation of the Semistable Locus.- Semistable, Polystable and Stable Points (part I).- Stability of Elliptic Tails.- Semistable, Polystable and Stable Points (part II).- Geometric Properties of the GIT Quotient.- Extra Components of the GIT Quotient.- Compacti_cations of the Universal Jacobian.- Appendix: Positivity Properties of Balanced Line Bundles.
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