Results 11 to 20 of about 618,275 (223)

Gaussian approximation of suprema of empirical processes [PDF]

open access: yes, 2012
This paper develops a new direct approach to approximating suprema of general empirical processes by a sequence of suprema of Gaussian processes, without taking the route of approximating whole empirical processes in the sup-norm.
Chernozhukov, Victor   +2 more
core   +5 more sources

Goldstone Theorem in the Gaussian Functional Approximation to the Scalar $\phi^{4}$ Theory [PDF]

open access: yes, 1994
We verify the Goldstone theorem in the Gaussian functional approximation to the $\phi^{4}$ theory with internal O(2) symmetry. We do so by reformulating the Gaussian approximation in terms of Schwinger-Dyson equations from which an explicit demonstration
Dmitrašinović, V.   +2 more
core   +2 more sources

Approximation Properties of Certain Summation Integral Type Operators

open access: yesDemonstratio Mathematica, 2015
In the present paper, we study approximation properties of a family of linear positive operators and establish direct results, asymptotic formula, rate of convergence, weighted approximation theorem, inverse theorem and better approximation for this ...
Patel P., Mishra Vishnu Narayan
doaj   +1 more source

Kronecker’s approximation theorem

open access: yesIndagationes Mathematicae, 2016
By elementary algebraic/arithmetic reasoning \textit{L. Kronecker} [Berl. Ber. 1884, 1179--1193 (1884; JFM 16.0083.02)] proved: Theorem A. Let \(A\) be an \(N \times M\) matrix with real entries, and let \(\alpha\in \mathbb R^N\) . Then the following two assertions are equivalent: 1.
Steven M. Gonek, Hugh L. Montgomery
openaire   +2 more sources

Quantitative-Voronovskaya and Grüss-Voronovskaya type theorems for Szász-Durrmeyer type operators blended with multiple Appell polynomials

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we establish a link between the Szász-Durrmeyer type operators and multiple Appell polynomials. We study a quantitative-Voronovskaya type theorem in terms of weighted modulus of smoothness using sixth order central moment and Grüss ...
Trapti Neer, Purshottam Narain Agrawal
doaj   +1 more source

Bézier-Summation-Integral-Type Operators That Include Pólya–Eggenberger Distribution

open access: yesMathematics, 2022
We define the summation-integral-type operators involving the ideas of Pólya–Eggenberger distribution and Bézier basis functions, and study some of their basic approximation properties. In addition, by means of the Ditzian–Totik modulus of smoothness, we
Syed Abdul Mohiuddine   +2 more
doaj   +1 more source

Formal and convergent solutions of analytic equations [PDF]

open access: yes, 2017
We provide the detailed proof of a sharpened version of the M.
Płoski, Arkadiusz
core   +1 more source

Equidistribution of rational functions having a superattracting periodic point towards the activity current and the bifurcation current [PDF]

open access: yes, 2003
We establish an approximation of the activity current $T_c$ in the parameter space of a holomorphic family $f$ of rational functions having a marked critical point $c$ by parameters for which $c$ is periodic under $f$, i.e., is a superattracting periodic
Okuyama, Yûsuke
core   +7 more sources

A new type of Szász–Mirakjan operators based on q-integers

open access: yesJournal of Inequalities and Applications, 2023
In this article, by using the notion of quantum calculus, we define a new type Szász–Mirakjan operators based on the q-integers. We derive a recurrence formula and calculate the moments Φ n , q ( t m ; x ) $\Phi _{n,q}(t^{m};x)$ for m = 0 , 1 , 2 $m=0,1 ...
Pembe Sabancigil   +2 more
doaj   +1 more source

Parametrix for the localization of the Bergman metric on strictly pseudoconvex domains [PDF]

open access: yes, 2017
We give the parameter version of localization theorem for Bergman metric near the boundary points of strictly pseudoconvex domains. The approximation theorem for square integrable holomorphic functions on such domains in the spirit of Graham-Kerzman is ...
Lewandowski, Arkadiusz
core   +2 more sources

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