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Divisorial Models of Normal Varieties

Part of: (Co)homology theory Computational aspects in algebraic geometry Surfaces and higher-dimensional varieties

Published online by Cambridge University Press:  31 January 2017

Stefano Urbinati
Stefano Urbinati*
Affiliation:
Università degli Studi di Padova, Dipartimento di Matematica, Room 630, Via Trieste 63, 35121 Padova, Italy (urbinati.st@gmail.com)
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Abstract

We prove that the canonical ring of a canonical variety in the sense of de Fernex and Hacon is finitely generated. We prove that canonical varieties are Kawamata log terminal (klt) if and only if is finitely generated. We introduce a notion of nefness for non-ℚ-Gorenstein varieties and study some of its properties. We then focus on these properties for non-ℚ-Gorenstein toric varieties.

Keywords

normal varietiessingularities of pairspositivitytoric varieties

MSC classification

Secondary: 14J17: Singularities 14F18: Multiplier ideals 14Q15: Higher-dimensional varieties
Type
Research Article
Information
Proceedings of the Edinburgh Mathematical Society , Volume 60 , Issue 4 , November 2017 , pp. 1053 - 1064
Copyright
Copyright © Edinburgh Mathematical Society 2017 

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