Results 51 to 60 of about 1,275,089 (180)

A Uniform Asymptotical Upper Bound for the Variance of a Random Polytope in a Simple Polytope

open access: yesМоделирование и анализ информационных систем, 2015
The present paper contains a sketch of the proof of an upper bound for the variance of the number of hyperfaces of a random polytope when the mother body is a simple polytope.
A. Magazinov
doaj   +3 more sources

On the Kolmogorov Distance for the Least Squares Estimator in the Fractional Ornstein-Uhlenbeck Process

open access: yesEuropean Journal of Mathematical Analysis, 2023
The paper shows that the distribution of the normalized least squares estimator of the drift parameter in the fractional Ornstein-Uhlenbeck process observed over [0, T] converges to the standard normal distribution with an uniform optimal error bound of ...
Jaya P. N. Bishwal
doaj   +1 more source

"Regulation of bound acrylonitrile content of nitrile rubber with low acrylonitrile content"

open access: yesHecheng xiangjiao gongye, 2023
 The factors affecting the bound acrylonitrile content of NBR product during the polyme-rization process were investigated, including monomer reactivity ratio, monomer conversion, monomer concentration, and polymerization temperature and pressure, the ...
HU Yu-lin, WANG Yong-feng, ZHONG Qi-lin, ZHAO Zhi-chao, SHAO Wei
doaj   +1 more source

Uniform Bounds for Black--Scholes Implied Volatility [PDF]

open access: yesSIAM Journal on Financial Mathematics, 2016
In this note, Black--Scholes implied volatility is expressed in terms of various optimisation problems. From these representations, upper and lower bounds are derived which hold uniformly across moneyness and call price. Various symmetries of the Black--Scholes formula are exploited to derive new bounds from old.
openaire   +2 more sources

Uniform Decay of Local Energy and the Semi-Linear Wave Equation on Schwarzchild Space

open access: yes, 2005
We provide a uniform decay estimate of Morawetz type for the local energy of general solutions to the inhomogeneous wave equation on a Schwarzchild background.
C. Morawetz   +7 more
core   +1 more source

Uniform Harbourne–Huneke bounds via flat extensions [PDF]

open access: yesJournal of Algebra, 2018
Over an arbitrary field $\mathbb{F}$, Harbourne conjectured that $$I^{(N (r-1)+1)} \subseteq I^r$$ for all $r>0$ and all homogeneous ideals $I$ in $S = \mathbb{F} [\mathbb{P}^N] = \mathbb{F} [x_0, \ldots, x_N]$. The conjecture has been disproven for select values of $N \ge 2$: first by Dumnicki, Szemberg, and Tutaj-Gasińska in characteristic zero ...
openaire   +3 more sources

Non-uniform Berry–Esseen bounds via Malliavin–Stein method

open access: yesComptes Rendus. Mathématique
In this paper, we establish non-uniform Berry–Esseen bounds by means of the Malliavin–Stein method. Applications to the multiple Wiener–Itô integrals and the exponential functionals of Brownian motion are given to illustrate the theory.
Tien Dung, Nguyen   +2 more
doaj   +1 more source

New bounds on Poisson approximation to the distribution of a sum of negative binomial random variables [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2018
The Stein-Chen method is usedto give new bounds, non-uniform bounds, for the distances between the distribution of a sum of independent negative binomial random variables and a Poisson distribution with mean, where ri and pi = 1-qi are parameters of ...
Kanint Teerapabolarn
doaj   +1 more source

Warped Tori with Almost Non-Negative Scalar Curvature

open access: yes, 2018
For sequences of warped product metrics on a $3$-torus satisfying the scalar curvature bound $R_j \geq -\frac{1}{j}$, uniform upper volume and diameter bounds, and a uniform lower area bound on the smallest minimal surface, we find a subsequence which ...
Allen, Brian   +4 more
core   +1 more source

Uniform bounds under increment conditions [PDF]

open access: yesTransactions of the American Mathematical Society, 2005
We apply a majorizing measure theorem of Talagrand to obtain uniform bounds for sums of random variables satisfying increment conditions of the type considered in Gál-Koksma Theorems. We give some applications.
openaire   +2 more sources

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