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相关论文: The set of toric minimal log discrepancies

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Low discrepancy point sets have been widely used as a tool to approximate continuous objects by discrete ones in numerical processes, for example in numerical integration. Following a century of research on the topic, it is still unclear…

计算几何 · 计算机科学 2024-07-17 François Clément , Carola Doerr , Kathrin Klamroth , Luís Paquete

Given an Orthogonal Array we analyze the aberrations of the sub-fractions which are obtained by the deletion of some of its points. We provide formulae to compute the Generalized Word-Length Pattern of any sub-fraction. In the case of the…

统计理论 · 数学 2018-09-12 Roberto Fontana , Fabio Rapallo

We use multiplication maps to give a characteristic-free approach to vanishing theorems on toric varieties. Our approach is very elementary but is enough powerful to prove vanishing theorems.

代数几何 · 数学 2007-05-23 Osamu Fujino

In this note we revisit the problem of determining combinatorially the multiplicity at the origin of a toric curve. In addition, we give the exact value of the regularity index of that point for plane toric curves and effective bounds for…

交换代数 · 数学 2022-02-02 Daniel Duarte , Alondra Ramírez Sandoval

In this note, we study the relationship between the variational gap and the variance of the (log) likelihood ratio. We show that the gap can be upper bounded by some form of dispersion measure of the likelihood ratio, which suggests the…

机器学习 · 计算机科学 2019-06-11 Chin-Wei Huang , Aaron Courville

In this paper we construct a spectral sequence computing a modified version of morphic cohomology of a toric variety (even when it is singular) in terms of combinatorial data coming from the fan of the toric variety.

代数几何 · 数学 2010-01-19 Abdó Roig-Maranges

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

We prove two related concentration inequalities concerning the number of rational points of hyperelliptic curves over subsets of a finite field. In particular, we investigate the probability of a large discrepancy between the numbers of…

密码学与安全 · 计算机科学 2018-01-26 Kristina Nelson , Jozsef Solymosi , Foster Tom , Ching Wong

We determine the Euclidean distance degree of a projective toric variety. This extends the formula of Matsui and Takeuchi for the degree of the $A$-discriminant in terms of Euler obstructions. Our primary goal is the development of reliable…

代数几何 · 数学 2018-07-23 Martin Helmer , Bernd Sturmfels

A common task in physics, information theory, and other fields is the analysis of properties of subsystems of a given system. Given the covariance matrix $M$ of a system of $n$ coupled variables, the covariance matrices of the subsystems…

概率论 · 数学 2019-01-30 Alice C. Schwarze , Philip S. Chodrow , Mason A. Porter

We prove a conjecture of Shokurov which characterises toric varieties using log pairs.

代数几何 · 数学 2018-05-23 Morgan Brown , James McKernan , Roberto Svaldi , Hong Zong

The aim of this note is to discuss resolution theorems that are useful in the study of semi log canonical varieties.

代数几何 · 数学 2008-12-19 János Kollár

We introduce and study the successive minima of line bundles on proper algebraic varieties. The first (resp. last) minima are the width (resp. Seshadri constant) of the line bundle at very general points. The volume of the line bundle is…

代数几何 · 数学 2020-02-18 Florin Ambro , Atsushi Ito

In this article, we investigate some properties of the coincidence point set of digitally continuous maps. Following the Rosenfeld graphical model which seems more combinatorial than topological, we expect to achieve results that might not…

一般拓扑 · 数学 2019-09-17 Muhammad Sirajo Abdullahi , Poom Kumam , Jamilu Abubakar

We discuss the minimal model program for b-log varieties, which is a pair of a variety and a b-divisor, as a natural generalization of the minimal model program for ordinary log varieties. We show that the main theorems of the log MMP work…

For two decades, reproducing kernels and their associated discrepancies have facilitated elegant theoretical analyses in the setting of quasi Monte Carlo. These same tools are now receiving interest in statistics and related fields, as…

统计方法学 · 统计学 2023-08-24 Chris. J. Oates

The purpose of [1] was as follows. ?We consider special sets of continuants which occur in applications. For these sets we solve the problem of finding maximal and minimal continuants. There are several methods for finding extremum such as…

数论 · 数学 2021-06-08 I. D. Kan

In this short note we provide an unbiased multilevel Monte Carlo estimator of the log marginal likelihood and discuss its application to variational Bayes.

机器学习 · 统计学 2019-12-24 Takashi Goda , Kei Ishikawa

We study asymptotic clustering of zeros of random polynomials, and show that the expected discrepancy of roots of a polynomial of degree $n$, with not necessarily independent coefficients, decays like $\sqrt{\log n/n}$. Our proofs rely on…

复变函数 · 数学 2013-07-24 Igor E. Pritsker , Alan A. Sola

In this note, using methods introduced by Hacon, McKernan and Xu, we study the accumulation points of volumes of varieties of log general type. First, we show that, if the set of boundary coefficients $\Lambda$ is DCC, closed under limits…

代数几何 · 数学 2020-04-22 Stefano Filipazzi