Results 21 to 30 of about 1,035,375 (308)

Integro-differentiated singularly perturbed equations with fast oscillating coefficients

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In the study of various issues related to dynamic stability, with the properties of media with a periodic structure, in the study of other applied problems, one has to deal with differential equations with rapidly oscillating coefficients.
B.T. Kalimbetov, V.F. Safonov
doaj   +1 more source

Asymptotics for L 1 $L_{1}$ -wavelet method for nonparametric regression

open access: yesJournal of Inequalities and Applications, 2020
Wavelets are particularly useful because of their natural adaptive ability to characterize data with intrinsically local properties. When the data contain outliers or come from a population with a heavy-tailed distribution, L 1 $L_{1}$ -estimation should
Xingcai Zhou, Fangxia Zhu
doaj   +1 more source

Extremal properties of the beta-normal distribution

open access: yesJournal of Inequalities and Applications, 2022
Asymptotic behaviors of the extremes of the beta-normal distribution are derived. The higher-order asymptotic expansions of the probability density and cumulative distribution functions for the maximum are given under an optimal normalizing constants. In
Yingying Jiang, Baokun Li
doaj   +1 more source

Estimating Smoothness and Optimal Bandwidth for Probability Density Functions

open access: yesStats, 2022
The properties of non-parametric kernel estimators for probability density function from two special classes are investigated. Each class is parametrized with distribution smoothness parameter. One of the classes was introduced by Rosenblatt, another one
Dimitris N. Politis   +2 more
doaj   +1 more source

The asymptotic norming property and martingale convergence [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
A martingale proof is given of the result of R. G. James and A. Ho in [ 3 ] that the asymptotic norming property implies the Radon-Nikodym property.
openaire   +1 more source

Hacking the Colebrook-White equation: The Tolentino-𝒁 method via algebraic collapse and its bit-to-bit equivalence in 64-bit architectures [PDF]

open access: yesINCAS Bulletin
The resolution of the Colebrook-White equation has historically been a stability challenge in Computational Fluid Dynamics (CFD) due to its transcendental and implicit nature.
San L. TOLENTINO
doaj   +1 more source

Convergence rate of principal component analysis with local-linear smoother for functional data under a unified weighing scheme

open access: yesStatistical Theory and Related Fields, 2020
The unified weighing scheme for the local-linear smoother in analysing functional data can deal with data that are dense, sparse or of neither type. In this paper, we focus on the convergence rate of functional principal component analysis using this ...
Xingyu Yan   +3 more
doaj   +1 more source

Wintner-type asymptotic behavior of linear differential systems with a proportional derivative controller [PDF]

open access: yesOpuscula Mathematica
This study investigated the asymptotic behavior of linear differential systems incorporating a proportional derivative-type (PD) differential operator.
Kazuki Ishibashi
doaj   +1 more source

Asymptotic Analysis of Boundary-Value Problems for the Laplace Operator with Frequently Alternating Type of Boundary Conditions

open access: yesСовременная математика: Фундаментальные направления, 2021
This work, which can be considered as a small monograph, is devoted to the study of twoand three-dimensional boundary-value problems for eigenvalues of the Laplace operator with frequently alternating type of boundary conditions.
D. I. Borisov
doaj   +1 more source

Dark Halo Cusp: Asymptotic Convergence [PDF]

open access: yesThe Astrophysical Journal, 2003
We propose a model for how the buildup of dark halos by merging satellites produces a characteristic inner cusp, of a density profile ρ\prop r^-a with a -> a_as > 1, as seen in cosmological N-body simulations of hierarchical clustering scenarios.
Dekel, Avishai   +3 more
openaire   +2 more sources

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