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相关论文: On real log canonical thresholds

200 篇论文

Consider a vertex-reinforced jump process defined on a regular tree, where each vertex has exactly $b$ children, with $b \ge 3$. We prove the strong law of large numbers and the central limit theorem for the distance of the process from the…

概率论 · 数学 2009-07-29 Andrea Collevecchio

We show that every limit of log canonical thresholds of n-variable functions is also a log canonical threshold of an (n-1)-variable function.

代数几何 · 数学 2008-05-07 János Kollár

We show that the minimal log discrepancy of any $\mathbb Q$-Gorenstein non-canonical threefold is $\leq\frac{12}{13}$, which is an optimal bound.

代数几何 · 数学 2020-11-10 Jihao Liu , Liudan Xiao

This paper extends the Pythagorean Theorem to positive and negative real exponents to take the form a^n + b^n = c^n and makes use of the definition gamma = b/a >= 1. For the case of n in the set of positive real numbers, n greater than or…

综合数学 · 数学 2023-01-09 Jeffrey S. Lee , Gerald B. Cleaver

In considering the reliability of numerical programs, it is normal to "limit our study to the semantics dealing with numerical precision" (Martel, 2005). On the other hand, there is a great deal of work on the reliability of programs that…

符号计算 · 计算机科学 2014-04-25 James H. Davenport , Russell Bradford , Matthew England , David Wilson

A rational function is the ratio of two complex polynomials in one variable without common roots. Its degree is the maximum of the degrees of the numerator and the denominator. Rational functions belong to the same class if one turns into…

量子代数 · 数学 2007-05-23 I. Scherbak

We show that log canonical thresholds for complex analytic spaces satisfy the ACC.

代数几何 · 数学 2022-08-26 Osamu Fujino

We propose a subconjecture that implies the semiampleness conjecture for quasi-numerically positive log canonical divisors and prove the semiampleness in some elementary cases.

代数几何 · 数学 2015-11-11 Shigetaka Fukuda

A practical version of the polynomial canonical formalism is developed for normal mesoscopic systems consisting of N independent electrons. Drastic simplification of calculations is attained by means of proper ordering excited states of the…

介观与纳米尺度物理 · 物理学 2007-05-23 N. K. Kuzmenko , V. M. Mikhajlov

A new definition of a real number is that it is a rule which says Yes or No based on whether the real number ought to be in a given rational interval. This is a teaser paper for formalizing, exploring, and generalizing this definition. The…

综合数学 · 数学 2023-05-16 James Taylor

We show that the minimum weight of a weighted blow-up of $\mathbf A^d$ with $\varepsilon$-log canonical singularities is bounded by a constant depending only on $\varepsilon $ and $d$. This was conjectured by Birkar. Using the recent…

代数几何 · 数学 2021-07-21 G. K. Sankaran , Francisco Santos

Let $X$ be a Gorenstein minimal projective $n$-fold with at worst locally factorial terminal singularities, and suppose that the canonical map of $X$ is generically finite onto its image. When $n<4$, the canonical degree is universally…

代数几何 · 数学 2016-12-19 Rong Du , Yun Gao

In this article, we will characterize the multiplier ideal sheaves with weights of log canonical threshold one by restricting the weights to complex regular surface.

复变函数 · 数学 2016-04-13 Qi'an Guan , Zhenqian Li

We present an explicit bijection between finite-decimal real numbers and natural numbers ($\mathbb{N} = \{1, 2, 3, ...\}$) using a systematic 4-tuple parametrization with closed-form mathematical formulas for enumeration. Our enumeration…

数论 · 数学 2025-08-15 S. K. Rithvik

The aim of this paper is to generalize the algorithm to compute jumping numbers on rational surfaces described in [AAD14] to varieties of dimension at least 3. Therefore, we introduce the notion of $\pi$-antieffective divisors, generalizing…

代数几何 · 数学 2016-03-03 Hans Baumers , Ferran Dachs-Cadefau

In this paper we consider the Waring rank of monomials over the real and the rational numbers. We give a new upper bound for it by establishing a way in which one can take a structured apolar set for any given monomial…

代数几何 · 数学 2023-09-04 Kangjin Han , Hyunsuk Moon

We look at a class of transcendental real numbers xi which, together with their square, satisfy some extremal property of simultaneous approximation by rational numbers with the same denominator. We give a sufficient condition for such a…

数论 · 数学 2013-01-07 Damien Roy

For an analytic and univalent function $f$ in the unit disk $\mathbb{D}:=\{z\in\mathbb{C}:|z|<1\}$ with the normalization $f(0)=0=f'(0)-1$, the logarithmic coefficients $\gamma_n$ are defined by $\log \frac{f(z)}{z}= 2\sum_{n=1}^{\infty}…

复变函数 · 数学 2016-10-03 Md Firoz Ali , D. K. Thomas , A. Vasudevarao

In a previous paper with the same title, we gave an upper bound for the exponent of uniform rational approximation to a quadruple of $\mathbb{Q}$-linearly independent real numbers in geometric progression. Here, we explain why this upper…

数论 · 数学 2025-04-29 Damien Roy

For $E_{b}: y^{2}=x^{3}+b$, we establish Lang's conjecture on a lower bound for the canonical height of non-torsion points along with upper and lower bounds for the difference between the canonical and logarithmic height. In many cases, our…

数论 · 数学 2016-05-23 Paul Voutier , Minoru Yabuta