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相关论文: The Volume-of-Tubes Formula: Computational Methods…

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The behavior of the volume of the tube of distance r, around a given compact set M, is an old and important question with relations to many fields, like differential geometry, geometric measure theory, integral geometry, and also…

泛函分析 · 数学 2009-02-03 J. -F. Crouzet , M. -0. Czarnecki

In this note, a new method for deriving the volume of hypersphere is proposed by using probability theory. The explicit expression of the multiple times convolution of the probability density functions we should use is very complicated. But…

信息论 · 计算机科学 2007-07-13 Woonchul Ham , Kemin Zhou

We investigate the notion of concentration locus introduced in \cite{CacUrs22}, in the case of Riemann manifolds sequences and its relationship with the volume of tubes. After providing a general formula for the volume of a tube around a…

微分几何 · 数学 2023-08-02 S. L. Cacciatori , P. Ursino

Turbulent puffs are ubiquitous in everyday life phenomena. Understanding their dynamics is important in a variety of situations ranging from industrial processes to pure and applied science. In all these fields, a deep knowledge of the…

流体动力学 · 物理学 2021-09-01 Andrea Mazzino , Marco E Rosti

H. Hotelling proved that in the n-dimensional Euclidean or spherical space, the volume of a tube of small radius about a curve depends only on the length of the curve and the radius. A. Gray and L. Vanhecke extended Hotelling's theorem to…

微分几何 · 数学 2016-10-04 Balázs Csikós , Márton Horváth

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

In spite of considerable progress, computing curvature in Volume of Fluid (VOF) methods continues to be a challenge. The goal is to develop a function or a subroutine that returns the curvature in computational cells containing an interface…

计算物理 · 物理学 2018-11-14 Yinghe Qi , Jiacai Lu , Ruben Scardovelli , Stephane Zaleski , Gretar Tryggvason

In this paper, we present a new explicit formula for the curvatures of a regular curve with an arbitrary parameter in the Euclidean space $\mathbb{R}^n$, $n\geq 2$, expressed only in terms of its derivatives. We introduce also the notion of…

微分几何 · 数学 2020-11-23 J. Adonai P. Seixas , Isnaldo Isaac Barbosa

The tube method or the volume-of-tube method approximates the tail probability of the maximum of a smooth Gaussian random field with zero mean and unit variance. This method evaluates the volume of a spherical tube about the index set, and…

概率论 · 数学 2021-09-10 Satoshi Kuriki , Akimichi Takemura , Jonathan E. Taylor

We give a very simple approach to the computation of tube volumes of self-similar sprays using a functional equation satisfied by them.

度量几何 · 数学 2014-01-13 Ali Deniz , Sahin Kocak , Yunus Ozdemir , A. Ersin Ureyen

We have derived an analytical formulation for estimating the volume of geometries enclosed by implicitly defined surfaces. The novelty of this work is due to two aspects. First we provide a general analytical formulation for all…

数值分析 · 数学 2019-05-01 Shucheng Pan , Xiangyu Hu , Nikolaus. A. Adams

Much of the research on multiple comparison and simultaneous inference in the past sixty years or so has been for the comparisons of several population means. Spurrier (1999) seems to be the first to study the multiple comparison of several…

统计方法学 · 统计学 2020-05-21 Jianan Peng , Wei Liu , Frank Bretz , Anthony Hayter

Speakman and Lee (2017) gave a formula for the volume of the convex hull of the graph of a trilinear monomial, $y=x_1x_2x_3$, over a box in the nonnegative orthant, in terms of the upper and lower bounds on the variables. This was done in…

最优化与控制 · 数学 2019-10-08 Emily Speakman , Gennadiy Averkov

Fully developed turbulence is analised with the lattice model employing vortex tube representation which is introduced recently by the authors. Several characteric features observed in experiments and direct numeric integrations are…

凝聚态物理 · 物理学 2007-05-23 Y-h. Taguchi , Hideki Takayasu

Given a hypothesis space, the large volume principle by Vladimir Vapnik prioritizes equivalence classes according to their volume in the hypothesis space. The volume approximation has hitherto been successfully applied to binary learning…

机器学习 · 计算机科学 2014-02-04 Gang Niu , Bo Dai , Marthinus Christoffel du Plessis , Masashi Sugiyama

A new approach for reducing error of the volume penalization method is proposed. The mask function is modified by shifting the interface between solid and fluid by ({\nu}{\eta})^0.5 toward the fluid region, where {\nu} and {\eta} are the…

计算物理 · 物理学 2014-09-05 Wakana Iwakami , Yuzuru Yatagai , Nozomu Hatakeyama , Yuji Hattori

We derive a one-dimensional (1d) model for the analysis of bulging or necking in an inflated hyperelastic tube of {\it finite wall thickness} from the three-dimensional finite elasticity theory by applying the dimension reduction…

软凝聚态物质 · 物理学 2025-11-21 Xiang Yu , Yibin Fu

Volume estimates of metric balls in manifolds find diverse applications in information and coding theory. In this paper, some new results for the volume of a metric ball in unitary group are derived via various tools from random matrix…

信息论 · 计算机科学 2015-06-25 Lu Wei , Renaud-Alexandre Pitaval , Jukka Corander , Olav Tirkkonen

The traditional method of finding the average value of a physical quantity often gives wrong results. Another formula of averaging is derived which gives correct results. It is applied to calculation of the average radius of tapering tube…

综合物理 · 物理学 2007-05-23 I. A. Stepanow

Log-likelihood is a standard metric for evaluating generative models. Unfortunately, in contrast to autoregressive models (ARMs), discrete diffusion models generally do not admit exact computation of this quantity. Existing evaluations,…

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