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Related papers: On generalized minimal log discrepancy

200 papers

We describe the foundation of the log minimal model program for log canonical pairs according to Ambro's idea. We generalize Koll\'ar's vanishing and torsion-free theorems for embedded simple normal crossing pairs. Then we prove the cone…

Algebraic Geometry · Mathematics 2009-07-10 Osamu Fujino

We establish the minimal model theory for normal pairs along log canonical locus in the complex analytic setting. This is the complex analytic analog of the previous result by the author.

Algebraic Geometry · Mathematics 2025-08-19 Kenta Hashizume

The main purpose of this paper is to establish some useful partial resolutions of singularities for pairs from the minimal model theoretic viewpoint. We first establish the existence of log canonical modifications of normal pairs under some…

Algebraic Geometry · Mathematics 2022-08-10 Osamu Fujino , Kenta Hashizume

We discuss a difference between the rational and the real non-vanishing conjecture for pseudo-effective log canonical divisors of log canonical pairs. We also show the log non-vanishing theorem for rationally connected varieties under…

Algebraic Geometry · Mathematics 2012-05-30 Yoshinori Gongyo

We discuss the relative log minimal model theory for log surfaces in the analytic setting. More precisely, we show that the minimal model program, the abundance theorem, and the finite generation of log canonical rings hold for log pairs of…

Algebraic Geometry · Mathematics 2026-04-15 Nao Moriyama

We prove that the union-closed sets conjecture is true for separating union-closed families $\mathcal{A}$ with $|\mathcal{A}| \leq 2\left(m+\frac{m}{\log_2(m)-\log_2\log_2(m)}\right)$ where $m$ denotes the number of elements in…

Combinatorics · Mathematics 2015-08-26 Jens Maßberg

For a fixed pair and fixed exponents, we prove the discreteness of log discrepancies over all log canonical triples formed by attaching a product of ideals with given exponents.

Algebraic Geometry · Mathematics 2012-04-25 Masayuki Kawakita

The nonvanishing conjecture for projective log canonical pairs plays a key role in the minimal model program of higher dimensional algebraic geometry. The numerical nonvanishing conjecture considered in this paper is a weaker version of the…

Algebraic Geometry · Mathematics 2020-02-05 Jingjun Han , Wenfei Liu

We study the behavior of generalized lc pairs with $\mathrm{\textbf b}$-log abundant nef part, a meticulously designed structure on algebraic varieties. We show that this structure is preserved under the canonical bundle formula and…

Algebraic Geometry · Mathematics 2022-02-25 Junpeng Jiao , Jihao Liu , Lingyao Xie

We show that minimal models of log canonical pairs exist, assuming the existence of minimal models of smooth varieties.

Algebraic Geometry · Mathematics 2022-05-24 Vladimir Lazić , Nikolaos Tsakanikas

We compare the minimal model of a log canonical pair with the minimal model of its reduced boundary. These results are then used to study the existence of the minimal model of a semi-log-canonical pair using its normalization.

Algebraic Geometry · Mathematics 2017-09-13 Florin Ambro , János Kollár

A generic computation of a subset A of the natural numbers consists of a a computation that correctly computes most of the bits of A, and which never incorrectly computes any bits of A, but which does not necessarily give an answer for…

Logic · Mathematics 2012-02-14 Gregory Igusa

We describe the set of minimal log discrepancies of toric log varities, and study its accumulation points.

Algebraic Geometry · Mathematics 2007-05-23 Florin Ambro

We survey the known and expected properties of the minimal log discrepancy, the local invariant of a log variety.

Algebraic Geometry · Mathematics 2007-05-23 Florin Ambro

We establish a relative spannedness for log canonical pairs, which is a generalization of the basepoint-freeness for varieties with log-terminal singularities by Andreatta--Wi\'sniewski. Moreover, we establish a generalization for quasi-log…

Algebraic Geometry · Mathematics 2020-12-01 Osamu Fujino

We obtain a correct generalization of Shokurov's non-vanishing theorem for log canonical pairs. It implies the base point free theorem for log canonical pairs. We also prove the rationality theorem for log canonical pairs. As a corollary,…

Algebraic Geometry · Mathematics 2009-12-01 Osamu Fujino

This paper shows that Mustata-Nakamura's conjecture holds for pairs consisting of a smooth surface and a multiideal with a real exponent over the base field of positive characteristic. As corollaries, we obtain the ascending chain condition…

Algebraic Geometry · Mathematics 2020-03-11 Shihoko Ishii

We formulate a generalization of Vojta's conjecture in terms of log pairs and variants of multiplier ideals. In this generalization, a variety is allowed to have singularities. It turns out that the generalized conjecture for a log pair is…

Number Theory · Mathematics 2016-10-13 Takehiko Yasuda

We show the semi-continuity property of minimal log discrepancies for varieties which have a crepant resolution in the category of Deligne-Mumford stacks. Using this property, we also prove the ideal-adic semi-continuity problem for toric…

Algebraic Geometry · Mathematics 2024-04-30 Yusuke Nakamura

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