Results 21 to 30 of about 242,143 (309)

Asymptotics of Asynchronicity [PDF]

open access: yesarXiv: Statistics Theory, 2011
In this article we focus on estimating the quadratic covariation of continuous semimartingales from discrete observations that take place at asynchronous observation times. The Hayashi-Yoshida estimator serves as synchronized realized covolatility for that we give our own distinct illustration based on an iterative synchronization algorithm.
openaire   +4 more sources

THE LIMITS OF APPLICABILITY OF THE LINEARIZATION METHOD IN CALCULATING SMALL–TIME REACHABLE SETS

open access: yesUral Mathematical Journal, 2020
The reachable sets of nonlinear systems are usually quite complicated. They, as a rule, are non-convex and arranged to have rather complex behavior. In this paper, the asymptotic behavior of reachable sets of nonlinear control-affine systems on small ...
Mikhail I. Gusev
doaj   +1 more source

Asymptotic topology [PDF]

open access: yesRussian Mathematical Surveys, 2000
We establish some basic theorems in dimension theory and absolute extensor theory in the coarse category of metric spaces. Some of the statements in this category can be translated in general topology language by applying the Higson corona functor. The relation of problems and results of this `Asymptotic Topology' to Novikov and similar conjectures is ...
openaire   +6 more sources

Asymptotic Behavior of Solutions of Integral Equations with Homogeneous Kernels

open access: yesMathematics, 2022
The multidimensional integral equation of second kind with a homogeneous of degree (−n) kernel is considered. The special class of continuous functions with a given asymptotic behavior in the neighborhood of zero is defined.
Oleg Avsyankin
doaj   +1 more source

Influence of coupling on the dynamics of three delayed oscillators [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
The purpose of this study is to construct the asymptotics of the relaxation regimes of a system of differential equations with delay, which simulates three diffusion-coupled oscillators with nonlinear compactly supported delayed feedback under the ...
Kashchenko, Alexandra Andreevna
doaj   +1 more source

Justification of the existence of a group of asymptotics of the general fifth Painlevé transcendent

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
There are several existing ways in developing the asymptotics of the Painlevé transcendents. But it is always a hard task to justify the existence of these asymptotics.
Youmin Lu, Zhoude Shao
doaj   +1 more source

Asymptotic resemblance [PDF]

open access: yesRocky Mountain Journal of Mathematics, 2016
Uniformity and proximity are two different ways for defining small scale structures on a set. Coarse structures are large scale counterparts of uniform structures. In this paper, motivated by the definition of proximity, we develop the concept of asymptotic resemblance as a relation between subsets of a set to define a large scale structure on it.
Kalantari, Sh., Honari, B.
openaire   +3 more sources

Implied Volatility Structure in Turbulent and Long-Memory Markets

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
We consider fractional stochastic volatility models that extend the classic Black–Scholes model for asset prices. The models are general and motivated by recent empirical results regarding the behavior of realized volatility. While such models retain the
Josselin Garnier, Knut Sølna
doaj   +1 more source

Calculation of the deflection of an arched truss with suspended elements depending on the number of panels

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2020
The aim of the work - to propose a scheme and analytical calculation of a statically definable planar truss with a suspended lower belt. Methods. The formula for the dependence of the deflection of the truss under the action of a uniform load on the ...
Mikhail N. Kirsanov
doaj   +1 more source

On the Asymptotics and Distribution of Values of the Jacobi Theta Functions and the Estimate of the Type of the Weierstrass Sigma Functions

open access: yesAxioms, 2021
A refined asymptotics of the Jacobi theta functions and their logarithmic derivatives have been received. The asymptotics of the Nevanlinna characteristics of the indicated functions and the arbitrary elliptic function have been found.
Mykola Korenkov, Yurii Kharkevych
doaj   +1 more source

Home - About - Disclaimer - Privacy