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We show that the log canonical threshold polytopes of varieties with log canonical singularities satisfy the ascending chain condition.

Algebraic Geometry · Mathematics 2020-11-05 Jingjun Han , Zhan Li , Lu Qi

We show that log canonical thresholds satisfy the ACC

Algebraic Geometry · Mathematics 2012-08-22 Christopher Hacon , James McKernan , Chenyang Xu

Shokurov's ACC Conjecture says that the set of all log canonical thresholds on varieties of bounded dimension satisfies the Ascending Chain Condition. This conjecture was proved for log canonical thresholds on smooth varieties in [EM1].…

Algebraic Geometry · Mathematics 2009-01-09 Tommaso de Fernex , Mircea Mustata

It is known that the set of log canonical thresholds (lcts) on any varieties with fixed dimension satisfies the ascending chain condition. Inspired by the foliated minimal model program, it is intriguing to study the foliated version of…

Algebraic Geometry · Mathematics 2025-11-13 Yen-An Chen

We prove the ascending chain condition for log canonical thresholds of bounded coregularity.

Algebraic Geometry · Mathematics 2022-11-18 Fernando Figueroa , Joaquín Moraga , Junyao Peng

Building on results of Koll\'ar, we prove Shokurov's ACC Conjecture for log canonical thresholds on smooth varieties, and more generally, on varieties with quotient singularities.

Algebraic Geometry · Mathematics 2009-01-09 Lawrence Ein , Mircea Mustata

We show that log canonical thresholds for complex analytic spaces satisfy the ACC.

Algebraic Geometry · Mathematics 2022-08-26 Osamu Fujino

Shokurov conjectured that the set of all log canonical thresholds on varieties of bounded dimension satisfies the ascending chain condition. In this paper we prove that the conjecture holds for log canonical thresholds on smooth varieties…

Algebraic Geometry · Mathematics 2019-12-19 Tommaso de Fernex , Lawrence Ein , Mircea Mustata

We consider pairs (X,A), where X is a variety with klt singularities and A is a formal product of ideals on X with exponents in a fixed set that satisfies the Descending Chain Condition. We also assume that X has (formally) bounded…

Algebraic Geometry · Mathematics 2010-06-25 Tommaso de Fernex , Lawrence Ein , Mircea Mustata

We show that generalized log canonical thresholds for complex analytic spaces satisfy the ACC and we characterize the accumulation points.

Algebraic Geometry · Mathematics 2023-03-03 Christopher Hacon , Lingyao Xie

We investigate the variation of log canonical thresholds in (graded) linear systems. For toric log Fano varieties, we give a sharp lower bound for log canonical thresholds of the anticanonical members in terms of the global minimal log…

Algebraic Geometry · Mathematics 2014-11-12 Florin Ambro

We prove that the ascending chain condition (ACC) for log canonical (lc) thresholds in dimension $d$ and Special Termination in dimension $d$ imply the termination of any sequence of log flips starting with a $d$-dimensional lc pair of…

Algebraic Geometry · Mathematics 2007-05-23 Caucher Birkar

We discuss the ascending chain condition for lengths of extremal rays. We prove that the lengths of extremal rays of $n$-dimensional $\mathbb Q$-factorial toric Fano varieties with Picard number one satisfy the ascending chain condition.

Algebraic Geometry · Mathematics 2012-06-05 Osamu Fujino , Yasuhiro Ishitsuka

We prove that the lengths of extremal rays of log canonical Fano surfaces with Picard number one satisfy the ascending chain condition. This confirms the 2-dimensional case of a conjecture stated by Fujino and Ishitsuka

Algebraic Geometry · Mathematics 2014-10-27 Evgeny Mayanskiy

We compute global log canonical thresholds of some smooth Fano threefolds.

Algebraic Geometry · Mathematics 2009-02-08 Ivan Cheltsov , Constantin Shramov

We study log canonical thresholds (also called global log canonical threshold or $\alpha$-invariant) of $\mathbb{R}$-linear systems. We prove existence of positive lower bounds in different settings, in particular, proving a conjecture of…

Algebraic Geometry · Mathematics 2020-12-02 Caucher Birkar

We study log canonical thresholds on quartic threefolds, quintic fourfolds, and double spaces. As an application, we show that they have a Kaehler-Einstein metric if they are general.

Algebraic Geometry · Mathematics 2015-01-05 Ivan Cheltsov , Jihun Park , Joonyeong Won

We show that the global log canonical threshold of generic Fano complete intersections of index 1 and codimension $k$ in ${\mathbb P}^{M+k}$ is equal to 1 if $M\geqslant 3k+4$ and the highest degree of defining equations is at least 8. This…

Algebraic Geometry · Mathematics 2014-12-17 Thomas Eckl , Aleksandr Pukhlikov

In this article, we investigate F-pure thresholds of polynomials that are homogeneous under some N-grading, and have an isolated singularity at the origin. We characterize these invariants in terms of the base p expansion of the…

Commutative Algebra · Mathematics 2014-04-16 Daniel J. Hernández , Luis Núñez-Betancourt , Emily E. Witt , Wenliang Zhang

In this paper, we prove that the set of all $F$-pure thresholds of ideals with fixed embedding dimension satisfies the ascending chain condition. As a corollary, given an integer $d$, we verify the ascending chain condition for the set of…

Algebraic Geometry · Mathematics 2018-05-21 Kenta Sato
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