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相关论文: Nakamaye's theorem on log canonical pairs

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In this paper, we establish a criterion for an overconvergent isocrystal on a smooth variety over a field of characteristic $p>0$ to extend logarithmically to its smooth compactification whose complement is a strict normal crossing divisor.…

数论 · 数学 2009-06-03 Atsushi Shiho

We give another alternative proof to the Kawamata semiampleness theorem for the log canonical divisors on klt varieties which are nef and abundant. After the first version of this article was posted to the e-print Arxiv, Prof. Fujino…

代数几何 · 数学 2019-03-22 Shigetaka Fukuda

In this article we establish a version of Y. Miyaoka generic semi-positivity theorem in the context of log-canonical orbifold pairs. As an application, we show that the canonical bundle associated to a lc pair is big as soon as there exists…

代数几何 · 数学 2015-04-29 Frédéric Campana , Mihai Păun

In this paper, we consider a two-parameter ($l$ and $a$) generalization of a sequence that Glasby and Paseman considered. Based on computer experiments, we conjecture its unimodality, log-concavity, peak positions, and the asymptotic…

组合数学 · 数学 2026-04-17 Seok Hyun Byun , Svetlana Poznanović

We try to understand complete types over a somewhat saturated model of a complete first order theory which is dependent (previously called NIP), by "decomposition theorems for such types". Our thesis is that the picture of dependent theory…

逻辑 · 数学 2013-12-25 Saharon Shelah

Given a Fano type log Calabi-Yau fibration $(X,B)\to Z$ with $(X,B)$ being $\epsilon$-lc, the first author in \cite{Bi23} proved that the generalised pair $(Z,B_Z+M_Z)$ given by the canonical bundle formula is generalised $\delta$-lc where…

代数几何 · 数学 2024-12-13 Caucher Birkar , Bingyi Chen

We generalize the notion of relational precompact expansions of Fra\"iss\'e classes via functorial means, inspired by the technique outlined by Laflamme, Nguyen Van Th\'e and Sauer in their paper Partition properties of the dense local…

组合数学 · 数学 2020-02-28 Keegan Dasilva Barbosa

We show that the family of semi log canonical pairs with ample log canonical class and with fixed volume is bounded.

代数几何 · 数学 2017-09-22 Christopher Hacon , James McKernan , Chenyang Xu

We generalize complex manifolds to manifolds with corners $X$, and to manifolds with generalized corners (g-corners) in the sense of the second author arXiv:1501.00401, using complex structures on the b-tangent bundle (log tangent bundle)…

微分几何 · 数学 2026-04-27 Hülya Argüz , Dominic Joyce

We prove the existence of log canonical modifications for a log pair. As an application, together with Koll\"ar's gluing theory, we remove the assumption in the first named author's work [Odaka11], which shows that K-semistable polarized…

代数几何 · 数学 2012-01-04 Yuji Odaka , Chenyang Xu

We consider the stationary (time-independent) Navier-Stokes equations in the whole threedimensional space, under the action of a source term and with the fractional Laplacian operator (--$\Delta$) $\alpha$/2 in the diffusion term. In the…

偏微分方程分析 · 数学 2024-05-16 Oscar Jarrín , Gastón Vergara-Hermosilla

As is well known, the "usual discrepancy" is defined for a normal Q-Gorenstein variety. By using this discrepancy we can define a canonical singularity and a log canonical singularity. In the same way, by using a new notion, Mather-Jacobian…

代数几何 · 数学 2013-10-28 Lawrence Ein , Shihoko Ishii

We introduce an intersection type system for the lambda-mu calculus that is invariant under subject reduction and expansion. The system is obtained by describing Streicher and Reus's denotational model of continuations in the category of…

计算机科学中的逻辑 · 计算机科学 2019-03-14 Steffen van Bakel , Franco Barbanera , Ugo de'Liguoro

In this paper we focus on pairs consisting of the affine $N$-space and multiideals with a positive exponent. We introduce a method "lifting to characteristic 0" which is a kind of the inversion of "modulo p reduction". By making use of it,…

代数几何 · 数学 2018-09-26 Shihoko Ishii

For every smooth complex projective variety $W$ of dimension $d$ and nonnegative Kodaira dimension, we show the existence of a universal constant $m$ depending only on $d$ and two natural invariants of the very general fibres of an Iitaka…

代数几何 · 数学 2018-09-24 Caucher Birkar , De-Qi Zhang

Using a result of Demailly and Pham on log canonical thresholds, we give an upper bound for polar invariants from a question of Teissier on hypersurface singularities. This provides a weaker alternative upper bound compared to the one…

代数几何 · 数学 2020-10-14 Dano Kim

It is conjectured that the canonical models of varieties (not of general type) are bounded when the Iitaka volume is fixed. We confirm this conjecture when the general fibers of the corresponding Iitaka fibration are in a fixed bounded…

代数几何 · 数学 2025-09-17 Junpeng Jiao

Monsky's celebrated equidissection theorem follows from his more general proof of the existence of a polynomial relation $f$ among the areas of the triangles in a dissection of the unit square. More recently, the authors studied a different…

度量几何 · 数学 2020-06-09 Aaron Abrams , Jamie Pommersheim

We show some inductive statements for the index conjecture for log canonical Calabi-Yau pairs. Using it, we show that boundedness of log canonical index for log canonical Calabi Yau pairs with rational DCC coefficients in dimension 3. We…

代数几何 · 数学 2019-05-03 Yanning Xu

Let $X$ be a normal variety. Assume that for some reduced divisor $D \subset X$, logarithmic 1-forms defined on the snc locus of $(X, D)$ extend to a log resolution $\tilde X \to X$ as logarithmic differential forms. We prove that then the…

代数几何 · 数学 2020-11-05 Patrick Graf , Sándor J Kovács