On log canonical rings
@article{Fujino2013OnLC, title={On log canonical rings}, author={Osamu Fujino and Yoshinori Gongyo}, journal={arXiv: Algebraic Geometry}, year={2013} }
We discuss the relationship among various conjectures in the minimal model theory including the finite generation conjecture of the log canonical rings and the abundance conjecture. In particular, we show that the finite generation conjecture of the log canonical rings for log canonical pairs can be reduced to that of the log canonical rings for purely log terminal pairs of log general type.
9 Citations
Minimal model theory for relatively trivial log canonical pairs
- Mathematics
- 2016
We study relative log canonical pairs with relatively trivial log canonical divisors. We fix such a pair $(X,\Delta)/Z$ and establish the minimal model theory for the pair $(X,\Delta)$ assuming the…
Log pluricanonical representations and the abundance conjecture
- MathematicsCompositio Mathematica
- 2014
Abstract We prove the finiteness of log pluricanonical representations for projective log canonical pairs with semi-ample log canonical divisor. As a corollary, we obtain that the log canonical…
Some remarks on the minimal model program
- Mathematics
- 2013
We prove that the target space of an extremal Fano contraction from a log canonical pair has only log canonical singularities. We also treat some related topics, for example, the finite generation of…
Some Remarks on the Minimal Model Program for Log Canonical Pairs
- Mathematics
- 2013
We prove that the target space of an extremal Fano contraction from a log canonical pair has only log canonical singu- larities. We also treat some related topics, for example, the finite generation…
MINIMAL MODEL THEORY FOR LOG SURFACES IN FUJIKI’S CLASS ${\mathcal{C}}$
- MathematicsNagoya Mathematical Journal
- 2020
We establish the minimal model theory for $\mathbb{Q}$-factorial log surfaces and log canonical surfaces in Fujiki’s class ${\mathcal{C}}$.
A class of singularity of arbitrary pairs and log canonicalizations
- MathematicsAsian Journal of Mathematics
- 2020
We define a class of singularity on arbitrary pairs of a normal variety and an effective $\mathbb{R}$-divisor on it, which we call pseudo-lc in this paper. This is a generalization of the usual lc…
On subadditivity of the logarithmic Kodaira dimension
- Mathematics
- 2014
We reduce Iitaka's subadditivity conjecture for the logarithmic Kodaira dimension to a special case of the generalized abundance conjecture by establishing an Iitaka type inequality for Nakayama's…
On semipositivity, injectivity and vanishing theorems
- Mathematics
- 2015
This is a survey article on the recent developments of semipositivity, injectivity, and vanishing theorems for higher-dimensional complex projective varieties.
Log canonical pairs with good augmented base loci
- MathematicsCompositio Mathematica
- 2014
Abstract Let $(X,B)$ be a projective log canonical pair such that $B$ is a $\mathbb{Q}$-divisor, and that there is a surjective morphism $f: X\to Z$ onto a normal variety $Z$ satisfying $K_X+B\sim…
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