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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…

Computational Geometry · Computer Science 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…

Statistics Theory · Mathematics 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.

Algebraic Geometry · Mathematics 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…

Commutative Algebra · Mathematics 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…

Machine Learning · Computer Science 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.

Algebraic Geometry · Mathematics 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…

Algebraic Geometry · Mathematics 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…

Cryptography and Security · Computer Science 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…

Algebraic Geometry · Mathematics 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…

Probability · Mathematics 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.

Algebraic Geometry · Mathematics 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.

Algebraic Geometry · Mathematics 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…

Algebraic Geometry · Mathematics 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…

General Topology · Mathematics 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…

Methodology · Statistics 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…

Number Theory · Mathematics 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.

Machine Learning · Statistics 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…

Complex Variables · Mathematics 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…

Algebraic Geometry · Mathematics 2020-04-22 Stefano Filipazzi
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