中文
相关论文

相关论文: Some remarks on the volume of log varieties

200 篇论文

Consider the random sequential packing model with infinite input and in any dimension. When the input consists of non-zero volume convex solids we show that the total number of solids accepted over cubes of volume $\lambda$ is…

概率论 · 数学 2015-06-26 T. Schreiber , Mathew D. Penrose , J. E. Yukich

We investigate the DCC property of the set of Iitaka volumes of a given set of pairs of varieties. We both generalize previous results of Birkar and Li about usual pairs to the real coefficient case, and also establish similar results on…

代数几何 · 数学 2026-05-19 Pinxian Bie

The point selection theorem says that the convex hull of any finite point set contains a point that lies in a positive proportion of the simplices determined by that set. This paper proves several new volumetric versions of this theorem…

度量几何 · 数学 2025-08-26 Travis Dillon

The set of volumes of stable surfaces does have accumulation points. In this paper, we study this phenomenon for surfaces with one cyclic quotient singularity, towards answering the question under which conditions we can still have…

代数几何 · 数学 2021-07-06 Diana Torres

In this paper, we present some explicit exponents in the estimates for the volumes of sub-level sets of polynomials on bounded sets, and applications to the decay of oscillatory integrals and the convergent of singular integrals.

经典分析与常微分方程 · 数学 2021-11-30 Ta Lê Loi , Minh Quy Pham

We prove matching asymptotic lower and upper bounds on the variances of the intrinsic volumes and the number of $k$-faces of $d$-dimensional random beta-polytopes. Using Stein's methods, we establish central limit theorems for the intrinsic…

度量几何 · 数学 2025-12-04 Ferenc Fodor , Balázs Grünfelder

In this paper we investigate boundedness and volumes of generalised pairs, and give applications to usual pairs especially to a class of pairs that we call stable log minimal models. Fixing the dimension and a DCC set controlling…

代数几何 · 数学 2021-04-06 Caucher Birkar

We investigate the numerical approximation of (discontinuous) entropy solutions to nonlinear hyperbolic conservation laws posed on a Lorentzian manifold. Our main result establishes the convergence of monotone and first-order finite volume…

数值分析 · 数学 2007-12-10 Paulo Amorim , Philippe G. LeFloch , Bawer Okutmustur

Intrinsic volumes, which generalize both Euler characteristic and Lebesgue volume, are important properties of $d$-dimensional sets. A random cubical complex is a union of unit cubes, each with vertices on a regular cubic lattice,…

概率论 · 数学 2021-08-24 Michael Werman , Matthew L. Wright

In the area of symbolic-numerical computation within computer algebra, an interesting question is how "close" a random input is to the "critical" ones, like the singular matrices in linear algebra or the polynomials with multiple roots for…

代数几何 · 数学 2019-07-19 Joachim von zur Gathen , Guillermo Matera

It is a well-known fact -- which can be shown by elementary calculus -- that the volume of the unit ball in $\mathbb{R}^n$ decays to zero and simultaneously gets concentrated on the thin shell near the boundary sphere as $n \nearrow…

历史与综述 · 数学 2026-02-24 Siran Li

We begin with the observation, based on previous results, that dimension-free lower bounds on the variance of a polynomial under a log-concave measure yield dimension-free small-ball and Fourier decay estimates. Motivated by this, we…

概率论 · 数学 2026-03-25 Itay Glazer , Dan Mikulincer

We study log canonical models of foliated surfaces of general type. In particular, we show that log canonical models of general type and their minimal partial du Val resolutions are bounded. Moreover, we show the valuative criteria of…

代数几何 · 数学 2022-02-25 Yen-An Chen

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…

代数几何 · 数学 2010-06-25 Tommaso de Fernex , Lawrence Ein , Mircea Mustata

Let $M$ be a compact oriented three-manifold whose interior is hyperbolic of finite volume. We prove a variation formula for the volume on the variety of representations of $M$ in $\operatorname{SL}_n(\mathbb C)$. Our proof follows the…

几何拓扑 · 数学 2018-12-19 Wolfgang Pitsch , Joan Porti

In this paper we study a notion of volume for Cartier divisors on arbitrary blow-ups of normal complex algebraic varieties of dimension greater than one, with a distinguished point. We apply this to study a volume for normal isolated…

代数几何 · 数学 2011-05-17 Mihai Fulger

Given an ambient variety $X$ and a fixed subvariety $Z$ we give sufficient conditions for the existence of a boundary $\Delta$ such that $Z$ is a log canonical center for the pair $(X, \Delta)$. We also show that under some additional…

代数几何 · 数学 2015-12-02 Lorenzo Prelli

Let $(X, \Delta)/U$ be klt pairs and $Q$ be a convex set of divisors. Assuming that the relative Kodaira dimensions are non-negative, then there are only finitely many log canonical models when the boundary divisors varying in a relatively…

代数几何 · 数学 2020-06-03 Zhan Li

Let $X$ be a quotient of a bounded domain in $\mathbb C^n$. Under suitable assumptions, we prove that every subvariety of $X$ not included in the branch locus of the quotient map is of log general type in some orbifold sense. This…

代数几何 · 数学 2022-07-28 Benoît Cadorel , Simone Diverio , Henri Guenancia

We show that log canonical thresholds of fixed dimension are standardized. More precisely, we show that any sequence of log canonical thresholds in fixed dimension $d$ accumulates in a way which is i) either similar to how standard and…

代数几何 · 数学 2024-06-07 Jihao Liu , Fanjun Meng , Lingyao Xie