Results 21 to 30 of about 54,600 (268)

A Liouville’s Formula for Systems with Reflection

open access: yesMathematics, 2021
In this work, we derived an Abel–Jacobi–Liouville identity for the case of two-dimensional linear systems of ODEs (ordinary differential equations) with reflection.
Santiago Codesido, F. Adrián F. Tojo
doaj   +1 more source

Centers for Trigonometric Abel Equations [PDF]

open access: yesQualitative Theory of Dynamical Systems, 2011
El títol de la versió pre-print de l'article és: Strongly persistent centers for trigonometric Abel equations In this paper we introduce the notion of strongly persistent centers, together with the condition of the annulation of some generalized moments, for Abel differential equations with trigonometric coefficients as a natural candidate to ...
Cimà, Anna   +2 more
openaire   +3 more sources

Solutions to Abel’s Integral Equations in Distributions

open access: yesAxioms, 2018
The goal of this paper is to study fractional calculus of distributions, the generalized Abel’s integral equations, as well as fractional differential equations in the distributional space D ′ ( R + ) based on inverse ...
Chenkuan Li   +2 more
doaj   +1 more source

Rational Limit Cycles on Abel Polynomial Equations

open access: yesMathematics, 2020
In this paper we deal with Abel equations of the form d y / d x = A 1 ( x ) y + A 2 ( x ) y 2 + A 3 ( x ) y 3 , where A 1 ( x ) , A 2 ( x ) and A 3 ( x ) are real polynomials and A 3 ≢ 0 .
Claudia Valls
doaj   +1 more source

A Chiellini type integrability condition for the generalized first kind Abel differential equation [PDF]

open access: yes, 2013
The Chiellini integrability condition of the first order first kind Abel equation $dy/dx=f(x)y^2+g(x)y^3$ is extended to the case of the general Abel equation of the form $dy/dx=a(x)+b(x)y+f(x)y^{\alpha -1}+g(x)y^{\alpha}$, where $\alpha \in \Re$, and ...
Harko, Tiberiu   +2 more
core   +1 more source

The solution of the full matrix analogue of the generalized Abel equation with constant coefficients

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
The system of generalized integral Abel equations in the matrix form with constant coefficients on the segment. Was considered at the terms of the integral Riemann–Liouville operators of matrix order.
R. R. Ismagiliva
doaj   +3 more sources

CAS Wavelet Function Method for Solving Abel Equations with Error Analysis [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2017
In this paper we use a computational method based on CAS wavelets for solving nonlinear fractional order Volterra integral equations. We solve particularly Abel equations.
R. Ezzati, K. Maleknejad, E. Fathizadeh
doaj   +1 more source

Integrable dissipative nonlinear second order differential equations via factorizations and Abel equations [PDF]

open access: yes, 2013
We emphasize two connections, one well known and another less known, between the dissipative nonlinear second order differential equations and the Abel equations which in its first kind form have only cubic and quadratic terms.
Mancas, Stefan C., Rosu, Haret C.
core   +3 more sources

Exact traveling wave solutions of fast reaction–diffusion–convectionequations based on the Lambert function W

open access: yesPartial Differential Equations in Applied Mathematics, 2020
A particular function defined in terms of the Lambert function W is shown to serve as the basis for exact traveling wave solutions to several reaction–diffusion–convection​ (RDC) equations involving rational, non-linear diffusion terms. These represent a
Brian Wesley Williams
doaj   +1 more source

Periodic solutions with nonconstant sign in Abel equations of the second kind [PDF]

open access: yes, 2011
The study of periodic solutions with constant sign in the Abel equation of the second kind can be made through the equation of the first kind. This is because the situation is equivalent under the transformation $x\mapsto x^{-1}$, and there are many ...
Alvarez   +19 more
core   +5 more sources

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