Results 11 to 20 of about 33,788 (311)

On asymptotic convergence rate of random search [PDF]

open access: yesJournal of Global Optimization, 2023
AbstractThis paper presents general theoretical studies on asymptotic convergence rate (ACR) for finite dimensional optimization. Given the continuous problem function and discrete time stochastic optimization process, the ACR is the optimal constant for control of the asymptotic behaviour of the expected approximation errors. Under general assumptions,
Tarłowski, Dawid
openaire   +5 more sources

Finite-difference time-domain simulations: Verification on head-related transfer functions of a rigid sphere model [PDF]

open access: yesJASA Express Letters, 2022
This paper presents a verification procedure for finite-difference time-domain-simulated head-related transfer functions (HRTFs) from a simplified model of a human head, a sphere.
Julie Meyer   +4 more
doaj   +1 more source

Convergence of asymptotic directions [PDF]

open access: yesTransactions of the American Mathematical Society, 2001
In this interesting paper the authors study convergence properties of asymptotic cones in relation with continuity properties of set-valued maps. Beside the usual lower, upper and upper Hausdorff continuity, closedness and boundedly compactness for set-valued maps, they use adequate notions for cone-valued maps like cosmic upper and lower continuity ...
Dinh The Luc, Penot, Jean-Paul
openaire   +2 more sources

Asymptotic Profiles and Convergence Rates of the Linearized Compressible Navier–Stokes– Korteweg System

open access: yesMathematics, 2019
In this paper, we consider the initial value problem for the linearized compressible Navier–Stokes–Korteweg system. Asymptotic profiles and convergence rates are established by Fourier splitting frequency technique.
Yinxia Wang
doaj   +1 more source

Asymptotic Properties of Spearman's Rank Correlation for Variables with Finite Support. [PDF]

open access: yesPLoS ONE, 2016
The asymptotic variance and distribution of Spearman's rank correlation have previously been known only under independence. For variables with finite support, the population version of Spearman's rank correlation has been derived.
Petra Ornstein, Johan Lyhagen
doaj   +1 more source

A convergent and asymptotic Laplace method for integrals

open access: yesJournal of Computational and Applied Mathematics, 2023
Watson’s lemma and Laplace’s method provide asymptotic expansions of Laplace integrals F (z) := ∫ ∞ 0 e −zf (t) g(t)dt for large values of the parameter z. They are useful tools in the asymptotic approximation of special functions that have a Laplace integral representation.
José L. López 0001   +2 more
openaire   +3 more sources

Regularization Method for Singularly Perturbed Integro-Differential Equations with Rapidly Oscillating Coefficients and Rapidly Changing Kernels

open access: yesAxioms, 2020
In this paper, we consider a system with rapidly oscillating coefficients, which includes an integral operator with an exponentially varying kernel. The main goal of the work is to develop an algorithm for the regularization method for such systems and ...
Burkhan Kalimbetov, Valeriy Safonov
doaj   +1 more source

Long-time behaviour of solutions of delayed-type linear differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
This paper investigates the asymptotic behaviour of the solutions of the retarded-type linear differential functional equations with bounded delays $$ \dot x(t)=-L(t,x_t) $$ when $t\to\infty$.
Josef Diblik
doaj   +1 more source

Asymptotic inference for nearly unstable AR(p) processes [PDF]

open access: yes, 1999
In this paper nearly unstable AR( p) processes (in other words, models with characteristic roots near the unit circle) are studied. Our main aim is to describe the asymptotic behavior of the least-squares estimators of the coefficients.
van Zuijlen, Martien C. A.   +2 more
core   +1 more source

Singularly perturbed control problems in the case of the stability of the spectrum of the matrix of an optimal system

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
The paper considers a singularly perturbed control problem with a quadratic quality functional. Such problems in their standard formulation under known spectrum restrictions (the points of the spectrum of the optimal system are not purely imaginary and
A.A. Bobodzhanov   +2 more
doaj   +1 more source

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