Toric plurisubharmonic functions and analytic adjoint ideal sheaves
Abstract
In the first part of this paper, we study the properties of some particular plurisubharmonic functions, namely the toric ones. The main result of this part is a precise description of their multiplier ideal sheaves, which generalizes the algebraic case studied by Howald. In the second part, almost entirely independent of the first one, we generalize the notion of the adjoint ideal sheaf used in algebraic geometry to the analytic setting. This enables us to give an analogue of Howald's theorem for adjoint ideals attached to monomial ideals. Finally, using the local Ohsawa-Takegoshi-Manivel theorem, we prove the existence of the so-called generalized adjunction exact sequence, which enables us to recover a weak version of the global extension theorem of Manivel, for compact K\"ahler manifolds.
Cite
@article{arxiv.1011.3162,
title = {Toric plurisubharmonic functions and analytic adjoint ideal sheaves},
author = {Henri Guenancia},
journal= {arXiv preprint arXiv:1011.3162},
year = {2011}
}
Comments
24 pages, v2: A minor error fixed in the proof of Theorem 2.13, Two errors partially fixed: coherence of the adjoint ideal needs another assumption (Cor 2.19), Nadel-vanishing with I_+ stated on a compact manifold only (Prop. 2.21 & Cor. 2.23)