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

200 篇论文

An elementary proof is provided of sharp bounds for the varentropy of random vectors with log-concave densities, as well as for deviations of the information content from its mean. These bounds significantly improve on the bounds obtained…

概率论 · 数学 2019-03-06 Matthieu Fradelizi , Mokshay Madiman , Liyao Wang

We introduce new families of combinatorial objects whose enumeration computes volumes of flow polytopes. These objects provide an interpretation, based on parking functions, of Baldoni and Vergne's generalization of a volume formula…

In this paper, we collect some fundamental properties of the arithmetic restricted volumes (or the arithmetic multiplicities) of the adelically metrized line bundles. The arithmetic restricted volume has the concavity property and…

代数几何 · 数学 2016-07-19 Hideaki Ikoma

We consider variational problems with regular H{\"o}lderian weight or boundary singularity, and Dirichlet condition. We prove the boundedness of the volume of the solutions to these equations on analytic domains.

偏微分方程分析 · 数学 2023-08-02 Samy Skander Bahoura

Given positive integers $d\geq\kappa$, and a subset $\Gamma\subset [0,1]$, let $\mathrm{Ivol}_{\mathrm{lc}}^{\Gamma}(d,\kappa)$ denote the set of Iitaka volumes of $d$-dimensional projective log canonical pairs $(X, B)$ such that the…

代数几何 · 数学 2024-07-11 Guodu Chen , Jingjun Han , Wenfei Liu

Assume that a linear space of real polynomials in $d$ variables is given which is translation and dilation invariant. We show that if a sequence in this space converges pointwise to a polynomial, then the limit polynomial belongs to the…

经典分析与常微分方程 · 数学 2015-12-02 J. M. Almira , L. Székelyhidi

Given n convex bodies in the real space of dimension d, we consider the set of homogeneous polynomials of degree d in n variables that can be represented as their volume polynomial. This set is a subset of the set of Lorentzian polynomials.…

组合数学 · 数学 2026-01-14 Amelie Menges

We prove that the discrete logarithm problem can be solved in quasi-polynomial expected time in the multiplicative group of finite fields of fixed characteristic. More generally, we prove that it can be solved in the field of cardinality…

数论 · 数学 2019-11-19 Thorsten Kleinjung , Benjamin Wesolowski

We establish concentration inequalities in the class of ultra log-concave distributions. In particular, we show that ultra log-concave distributions satisfy Poisson concentration bounds. As an application, we derive concentration bounds for…

概率论 · 数学 2021-10-04 Heshan Aravinda , Arnaud Marsiglietti , James Melbourne

We determine the asymptotics of the number of independent sets of size $\lfloor \beta 2^{d-1} \rfloor$ in the discrete hypercube $Q_d = \{0,1\}^d$ for any fixed $\beta \in [0,1]$ as $d \to \infty$, extending a result of Galvin for $\beta…

组合数学 · 数学 2022-02-10 Matthew Jenssen , Will Perkins , Aditya Potukuchi

We consider variational problems with regular H{\"o}lderian weight or with weight and boundary singularity and, Dirichlet condition. We prove the boundedness of the volume of the solutions to these equations on the annulus.

综合数学 · 数学 2021-12-22 Samy Skander Bahoura

In this paper, we consider the volume of a special kind of flow polytope. We show that its volume satisfies a certain system of differential equations, and conversely, the solution of the system of differential equations is unique up to a…

组合数学 · 数学 2019-04-11 Takayuki Negishi , Yuki Sugiyama , Tatsuru Takakura

We define a natural topology on the collection of (equivalence classes up to scaling of) locally finite measures on a homogeneous space and prove that in this topology, pushforwards of certain infinite volume orbits equidistribute in the…

动力系统 · 数学 2019-08-15 Uri Shapira , Cheng Zheng

The problem of determining the volume of a tubular neighbourhood has a long and rich history. Bounds on the volume of neighbourhoods of algebraic sets have turned out to play an important role in the probabilistic analysis of condition…

数值分析 · 数学 2013-10-01 Martin Lotz

We consider the "limiting behavior" of *discriminants*, by which we mean informally the locus in some parameter space of some type of object where the objects have certain singularities. We focus on the space of partially labeled points on…

代数几何 · 数学 2015-11-03 Ravi Vakil , Melanie Matchett Wood

We consider three types of multivariate records in this paper and derive the mean and the variance of their numbers for independent and uniform random samples from two prototype regions: hypercubes $[0,1]^d$ and $d$-dimensional simplex.…

统计理论 · 数学 2010-04-01 Hsien-Kuei Hwang , Tsung-Hsi Tsai

Up to a factor 1/n!, the volume of a big line bundle agrees with the Euclidean volume of its Okounkov body. The latter is the convex hull of top rank valuation vectors of sections, all with respect to a single flag. In this text we give a…

代数几何 · 数学 2019-03-12 Oliver Braunling

Random simplices and more general random convex bodies of dimension $p$ in $\mathbb{R}^n$ with $p\leq n$ are considered, which are generated by random vectors having an elliptical distribution. In the high-dimensional regime, that is, if…

概率论 · 数学 2023-08-17 Anna Gusakova , Johannes Heiny , Christoph Thäle

In this paper we study volume growth of gradient steady Ricci solitons. We show that if the potential function satisfies a uniform condition, then the soliton has at most Euclidean volume growth.

微分几何 · 数学 2016-01-20 Guofang Wei , Peng Wu

We study a percolation model on the square lattice, where clusters "freeze" (stop growing) as soon as their volume (i.e. the number of sites they contain) gets larger than N, the parameter of the model. A model where clusters freeze when…

概率论 · 数学 2015-01-22 Jacob van den Berg , Pierre Nolin