Results 31 to 40 of about 235,061 (287)

LIMIT CYCLES IN A CUBIC PREDATOR-PREY DIFFERENTIAL SYSTEM

open access: yesJournal of the Korean Mathematical Society, 2006
We propose a cubic difierential system, which can be considered a generalization of the predator-prey models, studied by many authors recently (see (18, 20), for instance). The properties of the equilibrium points, the existences, nonexistence, the uniqueness conditions and the relative positions of the limit cycles are inves- tigated.
Xuncheng Huang   +2 more
openaire   +2 more sources

Limit cycles of discontinuous piecewise linear differential systems formed by centers or Hamiltonian without equilibria separated by irreducible cubics

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
The main goal of this paper is to provide the maximum number of crossing limit cycles of two different families of discontinuous piecewise linear differential systems.
Damene Loubna, Benterki Rebiha
doaj   +1 more source

An efficient numerical scheme for fractional model of telegraph equation

open access: yesAlexandria Engineering Journal, 2022
The present attempt is to design a novel approach for the numerical solution of fractional telegraph equation. The novelty of the paper exist in solving the time fractional telegraph equation with differential quadrature method based on cubic B-spline ...
M.S. Hashmi   +3 more
doaj   +1 more source

Cubic differential systems with 2-invariant straight lines [PDF]

open access: yesCreative Mathematics and Informatics, 2013
For cubic differential system with a singular point O(0, 0) of a center or a focus type having three invariant straight lines of which one is 2-invariant it is proved that the origin is a center if and only if the first five Lyapunov quantities vanish.
openaire   +1 more source

Numerical solution of an intuitionistic fuzzy parabolic partial differential equation using an explicit cubic spline method [PDF]

open access: yesNotes on IFS
This paper presents a numerical approach for solving intuitionistic fuzzy parabolic partial differential equations (IFPPDEs) using the explicit cubic spline method. Intuitionistic fuzzy systems, which extend classical fuzzy sets by incorporating a degree
Deepak Kumar Sah, Sreenivasulu Ballem
doaj   +1 more source

Slow invariant manifolds as curvature of the flow of dynamical systems [PDF]

open access: yes, 2014
Considering trajectory curves, integral of n-dimensional dynamical systems, within the framework of Differential Geometry as curves in Euclidean n-space, it will be established in this article that the curvature of the flow, i.e.
Chua, Leon   +2 more
core   +1 more source

Centers of cubic polynomial differential systems

open access: yesCommunications on Pure and Applied Analysis
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anacona, Gerardo H.   +2 more
openaire   +2 more sources

On the Limit Cycles for Continuous and Discontinuous Cubic Differential Systems [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2016
We study the number of limit cycles for the quadratic polynomial differential systems , having an isochronous center with continuous and discontinuous cubic polynomial perturbations. Using the averaging theory of first order, we obtain that 3 limit cycles bifurcate from the periodic orbits of the isochronous center with continuous perturbations and at
openaire   +3 more sources

LOTKA-VOLTERRA CUBICDIFFERENTIAL SYSTEMS WITH (1:-2)- SINGULARITY AND INVARIANT AFFINE STRAIGHT LINES OF TWO DIRECTIONS OF TOTAL ALGEBRAIC MULTIPLICITY SIX

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2019
The Lotka-Volterra cubicdifferential systems with (1:-2)-singularity possessing invariant straight lines of two direction and total multiplicity six are classified.
Silvia TURUTA
doaj   +1 more source

Jacobian elliptic Kummer surfaces and special function identities

open access: yes, 2016
We derive formulas for the construction of all inequivalent Jacobian elliptic fibrations on the Kummer surface of two non-isogeneous elliptic curves from extremal rational elliptic surfaces by rational base transformations and quadratic twists.
Griffin, Elise, Malmendier, Andreas
core   +1 more source

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