Results 21 to 30 of about 11,835 (134)

Impulsive perturbations to differential equations: stable/unstable pseudo-manifolds, heteroclinic connections, and flux [PDF]

open access: yes, 2016
State-dependent time-impulsive perturbations to a two-dimensional autonomous flow with stable and unstable manifolds are analysed by posing in terms of an integral equation which is valid in both forwards- and backwards-time.
Balasuriya, Sanjeeva
core   +2 more sources

Eventual stability and eventual boundedness for impulsive differential equations with “supremum”

open access: yesMathematical Modelling and Analysis, 2011
Eventual stability and eventual boundedness for nonlinear impulsive differential equations with supremums are studied. The impulses take place at fixed moments of time. Piecewise continuous Lyapunov functions have been applied.
Ivanka Stamova
doaj   +1 more source

On the existence of periodic solution of some quasilinear differential equations with impulses

open access: yesVietnam Journal of Mechanics, 2004
As for ordinary differential equations, one of the problems that especially attract the attention of many mathematicians is the problem on the existence of periodic solutions of the differential equation systems with impulses.
Le Luong Tai
doaj   +1 more source

Multiple Periodic Solutions and Fractal Attractors of Differential Equations with n-Valued Impulses

open access: yesMathematics, 2020
Ordinary differential equations with n-valued impulses are examined via the associated Poincaré translation operators from three perspectives: (i) the lower estimate of the number of periodic solutions on the compact subsets of Euclidean spaces and, in ...
Jan Andres
doaj   +1 more source

Oscillations of Second-Order Nonlinear Ordinary Differential Equations with Impulses

open access: yesJournal of Mathematical Analysis and Applications, 1999
Here, the second-order nonlinear differential equation with impulses of the form \[ \begin{aligned} &[r(t)x'(t)]'+f(t,x(t))=0,\quad t\geq t_0,\;t\neq t_k,\;k=1,2,\dots ,\\ &x(t_k^{+})=g_k(x(t_k)),\;x'(t_k^{+})=h_k(x'(t_k)),\;\;k=1,2,\dots ,\\ &x(t_0^{+})=x_0,\;\;x'(t_0^{+})=x'_0, \end{aligned} \] with \(0\leq ...
Luo, Jiaowan, Debnath, Lokenath
openaire   +4 more sources

Asymptotic construction of pulses in the Hodgkin Huxley model for myelinated nerves [PDF]

open access: yes, 2005
A quantitative description of pulses and wave trains in the spatially discrete Hodgkin-Huxley model for myelinated nerves is given. Predictions of the shape and speed of the waves and the thresholds for propagation failure are obtained.
Carpio, A.
core   +3 more sources

Some applications of Laplace transforms in models with impulses or discontinuous forcing functions [PDF]

open access: yesRevista Brasileira de Ensino de Física
Commonly, in Ordinary Differential Equations courses, equations with impulses or discontinuous forcing functions are studied. In this context, the Laplace Transform of the Dirac delta function and unit step function is taught, which are used as forcing ...
Diego Miranda Gonçalves   +1 more
doaj   +1 more source

Numerical calculations near spatial infinity [PDF]

open access: yes, 2006
After describing in short some problems and methods regarding the smoothness of null infinity for isolated systems, I present numerical calculations in which both spatial and null infinity can be studied.
Zenginoglu, Anil
core   +2 more sources

Stability of functional differential equations with variable impulsive perturbations via generalized ordinary differential equations

open access: yesBulletin des Sciences Mathématiques, 2013
Abstract We consider a class of functional differential equations with variable impulses and we establish new stability results. We discuss the variational stability and variational asymptotic stability of the zero solution of a class of generalized ordinary differential equations where our impulsive functional differential equations can be embedded ...
Afonso, S.M.   +3 more
openaire   +1 more source

Periodic solutions for ordinary differential equations with sublinear impulsive effects

open access: yesJournal of Mathematical Analysis and Applications, 2005
The authors investigate the existence of periodic solutions for ordinary differential equations with sublinear impulsive effects.
Qian, Dingbian, Li, Xinyu
openaire   +1 more source

Home - About - Disclaimer - Privacy