Results 71 to 80 of about 1,048 (181)

Quaternionic-valued ordinary differential equations. The Riccati equation

open access: yesJournal of Differential Equations, 2009
The paper uses Poincaré's operator and finite-dimensional fixed point theory to obtain existence and multiplicity results for the T-periodic solutions \(q(t)\) of quaternionic-valued equations of the form \[ \dot q = qa(t)q + b(t)q + qd(t) + c(t), \] where \(a, b, c : \mathbb R \to \mathbb H\) are T-periodic continuous quaternionic-valued functions ...
openaire   +2 more sources

On solving a linear control problem

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
The problem of a linear regulator is considered. There is a system of linear differential equations with a quadratic control quality criterion. The method of dynamic programming is applied to the solution of the considered linear problem.
M. Muhtarov, A.H. Kalidolday
doaj   +1 more source

Riccati’s differential equation in birth-death processes

open access: yesTrabajos de Estadistica Y de Investigacion Operativa, 1985
Summary: This note reviews the occurrence of Riccati's equation in three birth- death type processes, and outlines their solutions.
openaire   +3 more sources

Rational solutions of Riccati differential equation with coefficients rational [PDF]

open access: yesApplied Mathematics and Computation, 2011
This paper presents a simple and efficient method for determining the rational solution of Riccati differential equation with coefficients rational. In case the differential Galois group of the differential equation , is reducible, we look for the rational solutions of Riccati differential equation , by reducing the number of checks to be made and by
openaire   +3 more sources

Special solutions of the Riccati equation with applications to the Gross-Pitaevskii nonlinear PDE

open access: yesElectronic Journal of Differential Equations, 2010
A method for finding solutions of the Riccati differential equation $y' = P(x) + Q(x)y + R(x)y^2$ is introduced. Provided that certain relations exist between the coefficient $P(x)$, $Q(x)$ and $R(x)$, the above equation can be solved in closed form.
Anas Al Bastami   +2 more
doaj  

Oscillation of a time fractional partial differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
We consider a time fractional partial differential equation subject to the Neumann boundary condition. Several sufficient conditions are established for oscillation of solutions of such equation by using the integral averaging method and a generalized ...
P. Prakash   +3 more
doaj   +1 more source

Efficient Numerical Method for Solving a Quadratic Riccati Differential Equation

open access: yesAbstract and Applied Analysis
This study presents families of the fourth-order Runge–Kutta methods for solving a quadratic Riccati differential equation. From these families, the England version is more efficient than other fourth-order Runge–Kutta methods and practically well-suited
Wendafrash Seyid Yirga   +3 more
doaj   +1 more source

Fite-Wintner-Leighton-Type Oscillation Criteria for Second-Order Differential Equations with Nonlinear Damping

open access: yesAbstract and Applied Analysis, 2013
Some new oscillation criteria for a general class of second-order differential equations with nonlinear damping are shown. Except some general structural assumptions on the coefficients and nonlinear terms, we additionally assume only one sufficient ...
Mervan Pašić
doaj   +1 more source

Oscillatory criteria of noncanonical even-order differential equations with a superlinear neutral term

open access: yesBoundary Value Problems
The oscillatory behavior of solutions of an even-order differential equation with a superlinear neutral term is considered using Riccati and generalized Riccati transformations, the integral averaging technique, and the theory of comparison.
A. A. El-Gaber
doaj   +1 more source

Asymptotic Dichotomy in a Class of Fourth-Order Nonlinear Delay Differential Equations with Damping

open access: yesAbstract and Applied Analysis, 2009
All solutions of a fourth-order nonlinear delay differential equation are shown to converge to zero or to oscillate. Novel Riccati type techniques involving third-order linear differential equations are employed. Implications in the deflection of elastic
Chengmin Hou, Sui Sun Cheng
doaj   +1 more source

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