Log canonical singularities of plurisubharmonic functions

Fuente: arXiv
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Main Authors: Kim, Dano, Kollár, János
Format: Preprint
Published: 2023
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author Kim, Dano
Kollár, János
author_facet Kim, Dano
Kollár, János
contents A plurisubharmonic weight is log canonical if it is at the critical point of turning non-integrable. Given a log canonical plurisubharmonic weight, we show that locally there always exists a log canonical `holomorphic' weight having the same non-integrable locus. The proof uses the theory of quasimonomial valuations developed by Jonsson-Mustaţǎ and Xu, as well as the minimal model program over complex analytic spaces due to Fujino and Lyu-Murayama. As a consequence, we obtain that the non-integrable locus is seminormal.
format Preprint
id arxiv_https___arxiv_org_abs_2312_16140
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Log canonical singularities of plurisubharmonic functions
Kim, Dano
Kollár, János
Complex Variables
Algebraic Geometry
A plurisubharmonic weight is log canonical if it is at the critical point of turning non-integrable. Given a log canonical plurisubharmonic weight, we show that locally there always exists a log canonical `holomorphic' weight having the same non-integrable locus. The proof uses the theory of quasimonomial valuations developed by Jonsson-Mustaţǎ and Xu, as well as the minimal model program over complex analytic spaces due to Fujino and Lyu-Murayama. As a consequence, we obtain that the non-integrable locus is seminormal.
title Log canonical singularities of plurisubharmonic functions
topic Complex Variables
Algebraic Geometry
url https://arxiv.org/abs/2312.16140