Results 11 to 20 of about 1,134,462 (290)

Averaging method for systems with separatrix crossing [PDF]

open access: yes, 2017
The averaging method provides a powerful tool for studying evolution in near-integrable systems. Existence of separatrices in the phase space of the underlying integrable system is an obstacle for application of standard results that justify using of ...
Neishtadt, Anatoly
core   +2 more sources

The Whitham Modulation Solution of the Complex Modified KdV Equation

open access: yesMathematics, 2023
This paper primarily concerns the Whitham modulation equation of the complex modified Korteweg–de Vries (cmKdV) equation with a step-like initial value. By utilizing the Lax pair, we derive the N-genus Whitham equations via the averaging method.
Shijie Zeng, Yaqing Liu
doaj   +1 more source

Special Splines of Exponential Type for the Solutions of Mass Transfer Problems in Multilayer Domains

open access: yesMathematical Modelling and Analysis, 2016
We consider averaging methods for solving the 3-D boundary-value problem of second order in multilayer domain. The special hyperbolic and exponential type splines, with middle integral values of piece-wise smooth function interpolation are considered ...
Andris Buikis   +2 more
doaj   +1 more source

Application of the Averaging Method to the Optimal Control Problem of Non-Linear Differential Inclusions on the Finite Interval

open access: yesAxioms, 2022
In this paper, we use the averaging method to find an approximate solution for the optimal control of non-linear differential inclusions with fast-oscillating coefficients on a finite time interval.
Tetiana Zhuk   +2 more
doaj   +1 more source

Application of the averaging method to the gyrokinetic plasma [PDF]

open access: yes, 2006
we show that the solution to an oscillatory-singularly perturbed ordinary differential equation may be asymptotically expanded into a sum of oscillating terms.
Frenod, Emmanuel
core   +5 more sources

Commutator method for averaging lemmas

open access: yesAnalysis & PDE, 2022
We introduce a commutator method with multipliers to prove averaging lemmas, the regularizing effect for the velocity average of solutions for kinetic equations. This method requires only elementary techniques in Fourier analysis and shows a new range of assumptions that are sufficient for the velocity average to be in $L^2([0,T],H^{1/2}_x).$ This ...
Jabin, Pierre-Emmanuel   +2 more
openaire   +2 more sources

Finite bias visibility of the electronic Mach-Zehnder interferometer [PDF]

open access: yes, 2007
We present an original statistical method to measure the visibility of interferences in an electronic Mach-Zehnder interferometer in the presence of low frequency fluctuations.
Cavanna, A.   +7 more
core   +1 more source

Center Manifold Method in the Asymptotic Integration Problem for Functional Differential Equations with Oscillatory Decreasing Coefficients. II

open access: yesМоделирование и анализ информационных систем, 2014
In this paper we study the asymptotic integration problem in the neighborhood of infinity for a certain class of linear functional differential systems. We construct the asymptotics for the solutions of the considered systems in a critical case.
P. N. Nesterov
doaj   +1 more source

On the birth of limit cycles for non-smooth dynamical systems [PDF]

open access: yes, 2014
The main objective of this work is to develop, via Brower degree theory and regularization theory, a variation of the classical averaging method for detecting limit cycles of certain piecewise continuous dynamical systems.
Andronov   +31 more
core   +3 more sources

The average method is much better than average

open access: yesJournal of Computational and Applied Mechanics, 2021
Operator splitting is a powerful method for the numerical investigation of complex time-dependent models, where the stationary (elliptic) part consists of a sum of several structurally simpler sub-operators. As an alternative to the classical splitting methods, a new splitting scheme is proposed here, the Average Method with sequential splitting.
Lívia Boda   +2 more
openaire   +1 more source

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