Results 41 to 50 of about 36,805 (178)

An Abel ordinary differential equation class generalizing known integrable classes [PDF]

open access: yesEuropean Journal of Applied Mathematics, 2003
We present a multi-parameter non-constant-invariant class of Abel ordinary differential equations with the following remarkable features. This one class is shown to unify, that is, contain as particular cases, all the integrable classes presented by Abel, Liouville and Appell, as well as all those shown in Kamke's book and various other references.
Cheb-Terrab, E. S., Roche, A. D.
openaire   +2 more sources

Anisotropic geodesic fluid in non-comoving spherical coordinates

open access: yes, 2017
We start with a recently introduced spherically symmetric geodesic fluid model (arXiv: 1601.07030) whose energy-momentum tensor in the comoving frame is dust-like with nontrivial energy flux.
Stichel, Peter C.
core   +1 more source

Majorana transformation for differential equations

open access: yes, 2002
We present a method for reducing the order of ordinary differential equations satisfying a given scaling relation (Majorana scale-invariant equations).
Esposito, Salvatore
core   +1 more source

Computer construction of the general solution of the special form of the Abel differential equation [PDF]

open access: yes, 2015
The computer method of building a general solution of the special form for the nonlinear differential equation of the second order and the Abel differential equation of the first kind is considered.
Chychurin, Oleksandr V.   +3 more
core  

Abel-like differential equations with no periodic solutions

open access: yesJournal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bravo, J.L., Torregrosa, J.
openaire   +2 more sources

Exact Solutions for Certain Nonlinear Autonomous Ordinary Differential Equations of the Second Order and Families of Two-Dimensional Autonomous Systems

open access: yesInternational Journal of Differential Equations, 2010
Certain nonlinear autonomous ordinary differential equations of the second order are reduced to Abel equations of the first kind ((Ab-1) equations). Based on the results of a previous work, concerning a closed-form solution of a general (Ab-1) equation ...
M. P. Markakis
doaj   +1 more source

Evolution Equations in Hilbert Spaces via the Lacunae Method

open access: yesFractal and Fractional, 2022
In this paper, we consider evolution equations in the abstract Hilbert space under the special conditions imposed on the operator at the right-hand side of the equation.
Maksim V. Kukushkin
doaj   +1 more source

Fractional Abel Differential Equation Application in Edge Detection: FADEED

open access: yesJournal of Image Processing and Artificial Intelligence, 2023
There is a long history of perturbed implementations of Abel differential equations in dynamics, linear systems with stochasticity, modeling approaches, and linear algebra. Numerous research has been undertaken, the bulk of which have focused on Abel differential equation techniques and the use of the Abel differential equation using the variation ...
N. Nithyadevi, P. Prakash
openaire   +1 more source

Algebro-Geometric Solutions for a Discrete Integrable Equation

open access: yesDiscrete Dynamics in Nature and Society, 2017
With the assistance of a Lie algebra whose element is a matrix, we introduce a discrete spectral problem. By means of discrete zero curvature equation, we obtain a discrete integrable hierarchy. According to decomposition of the discrete systems, the new
Mengshuang Tao, Huanhe Dong
doaj   +1 more source

Universal centers in the cubic trigonometric Abel equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
We study the center problem for the trigonometric Abel equation $d \rho/ d \theta= a_1 (\theta) \rho^2 + a_2(\theta) \rho^3,$ where $a_1(\theta)$ and $a_2(\theta)$ are cubic trigonometric polynomials in $\theta$.
Jaume Giné   +2 more
doaj   +1 more source

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