Results 21 to 30 of about 24,896 (183)

Simultaneous occurrence of sliding and crossing limit cycles in piecewise linear planar vector fields [PDF]

open access: yes, 2019
In the present study we consider planar piecewise linear vector fields with two zones separated by the straight line $x=0$. Our goal is to study the existence of simultaneous crossing and sliding limit cycles for such a class of vector fields.
Cardoso, Joao L.   +3 more
core   +2 more sources

Limit Cycles for Discontinuous Planar Piecewise Linear Differential Systems Separated by an Algebraic Curve [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2019
We study how to change the maximum number of limit cycles of the discontinuous piecewise linear differential systems with only two pieces in function of the degree of the discontinuity of the algebraic curve between the two linear differential systems. These discontinuous differential systems appear frequently in applied sciences.
Jaume Llibre, Xiang Zhang
openaire   +6 more sources

On the periodic solutions of the Michelson continuous and discontinuous piecewise linear differential system [PDF]

open access: yesComputational and Applied Mathematics, 2016
Applying new results from the averaging theory for continuous and discontinuous differential systems, we study the periodic solutions of two distinct versions of the Michel- son differential system: a Michelson continuous piecewise linear differential system and a Michelson discontinuous piecewise linear differential system.
Llibre, Jaume   +2 more
openaire   +6 more sources

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

Regularization of Discontinuous Foliations: Blowing up and Sliding Conditions via Fenichel Theory [PDF]

open access: yes, 2017
We study the regularization of an oriented 1-foliation $\mathcal{F}$ on $M \setminus \Sigma$ where $M$ is a smooth manifold and $\Sigma \subset M$ is a closed subset, which can be interpreted as the discontinuity locus of $\mathcal{F}$.
da Silva, Paulo Ricardo   +1 more
core   +2 more sources

On the studying the spectrum of differential operators’ family whose potentials converge to the Dirac delta function

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2021
Background. The paper proposes a new method for studying differential operators with discontinuous coefficients. We study a sequence of differential operators of high even order whose potentials converge to the Dirac delta function.
S.I. Mitrokhin
doaj   +1 more source

Limit cycles of 3-dimensional discontinuous piecewise differential systems formed by linear centers

open access: yesSão Paulo Journal of Mathematical Sciences, 2021
In this paper we deal with 3-dimensional discontinuous piecewise differential systems formed by linear centers and separated by one plane or two parallel planes. We prove that these systems separated by one plane have no limit cycles, besides the systems separated by two parallel planes have at most one limit cycle, and that there are systems having ...
Jaume LLibre, Jaime R. de Moraes
openaire   +4 more sources

Non-Filippov dynamics arising from the smoothing of nonsmooth systems, and its robustness to noise [PDF]

open access: yes, 2013
Switch-like behaviour in dynamical systems may be modelled by highly nonlinear functions, such as Hill functions or sigmoid functions, or alternatively by piecewise-smooth functions, such as step functions.
Jeffrey, Mike R., Simpson, David J. W.
core   +5 more sources

The extended 16th Hilbert problem for a class of discontinuous piecewise differential systems

open access: yesNonlinear Dynamics, 2022
In order to understand the dynamics of the planar differential systems, the limit cycles play a main role, but in general their study is not easy. These last years, an increasing interest appeared for studying the limit cycles of some classes of piecewise differential systems, due to the rich applications of this kind of differential systems.
Meriem Barkat   +2 more
openaire   +3 more sources

The Euler scheme for stochastic differential equations with discontinuous drift coefficient: a numerical study of the convergence rate

open access: yesAdvances in Difference Equations, 2019
The Euler scheme is one of the standard schemes to obtain numerical approximations of solutions of stochastic differential equations (SDEs). Its convergence properties are well known in the case of globally Lipschitz continuous coefficients.
S. Göttlich, K. Lux, A. Neuenkirch
doaj   +1 more source

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