Results 11 to 20 of about 299,219 (282)

On the reflective function of polynomial differential system

open access: yesJournal of Mathematical Analysis and Applications, 2003
The author investigates the planar differential system \[ \begin{aligned} \dot{x} &=P(t,x,y):=a(t,x)+b(t,x)y+c(t,x)y^2,\\ \dot{y} &=Q(t,x,y):=e(t,x)+f(t,x)y+g(t,x)y^2, \end{aligned} \tag{1} \] with continuously differentiable coefficients by the method of reflective functions (RF). The theory of RF was established in 1986 by \textit{V. I.
openaire   +3 more sources

Polynomial and rational first integrals for planar quasi--homogeneous polynomial differential systems

open access: yesDiscrete & Continuous Dynamical Systems - A, 2013
In this paper we find necessary and sufficient conditions in order that a planar quasi-homogeneous polynomial differential system has a polynomial or a rational first integral. We also prove that any planar quasi-homogeneous polynomial differential system can be transformed into a differential system of the form u˙ = uf(v), ˙v = g(v) with f(v) and g(v)
Giné, Jaume   +2 more
openaire   +6 more sources

Reduction of integrable planar polynomial differential systems

open access: yesApplied Mathematics Letters, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jaume Gine
openaire   +3 more sources

A New Approach of Morgan-Voyce Polynomial to Solve Three Point Boundary Value Problems

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
In this paper, a new procedure is introduced to estimate the solution for the three-point boundary value problem which is instituted on the use of Morgan-Voyce polynomial. In the beginning, Morgan-Voyce polynomial along with their important properties is
Bushra Esaa Kashem
doaj   +1 more source

Limit Cycles of Polynomially Integrable Piecewise Differential Systems

open access: yesAxioms, 2023
In this paper, we study how many algebraic limit cycles have the discontinuous piecewise linear differential systems separated by a straight line, with polynomial first integrals on both sides. We assume that at least one of the systems is Hamiltonian. Under this assumption, piecewise differential systems have no more than one limit cycle.
Belén García   +3 more
openaire   +5 more sources

Polynomial and rational first integrals for planar homogeneous polynomial differential systems [PDF]

open access: yesPublicacions Matemàtiques, 2021
In this paper we find necessary and suficient conditions in order that a planar homogeneous polynomial differential system has a polynomial or rational first integral. We apply these conditions to linear and quadratic homogeneous polynomial differential systems.
Giné, Jaume, Grau, Maite, Llibre, Jaume
openaire   +9 more sources

Phase portraits of Bernoulli quadratic polynomial differential systems

open access: yesElectronic Journal of Differential Equations, 2020
In this article we study a new class of quadratic polynomial differential systems. We classify all global phase portraits in the Poincare disk of Bernoulli quadratic polynomial differential systems in R^2. For more information see https://ejde.math.txstate.edu/Volumes/2020/48/abstr ...
Llibre, Jaume   +2 more
openaire   +7 more sources

On the polynomial differential systems having polynomial first integrals

open access: yesBulletin des Sciences Mathématiques, 2012
We consider the class of complex planar polynomial differential systems having a polynomial first integral. Inside this class the systems having minimal polynomial first integrals without critical remarkable values are the Hamiltonian ones. Here we mainly study the subclass of polynomial differential systems such that their minimal polynomial first ...
García, Belen   +2 more
openaire   +5 more sources

Polynomial Collocation Methods Based on Successive Integration Technique for Solving Neutral Delay Differential Equations

open access: yesRatio Mathematica, 2023
This paper presents a new approach of using polynomials such as Hermite, Bernoulli, Chebyshev, Fibonacci and Bessel to solve neutral delay differential equations. The proposed method is based on the truncated polynomial expansion of the function together
Kayelvizhi C., Emimal Kanaga Pushpam A.
doaj   +1 more source

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