Results 61 to 70 of about 3,735,457 (189)

An overview of recent developments in computational methods for periodic systems [PDF]

open access: yes, 2007
: At the First IFAC Workshop on Periodic Systems (Como, Italy, 2001), a state of the art survey of computational methods for periodic systems has been presented (Varga and Van Dooren, 2001).
Andras Varga, Varga, Andreas
core   +1 more source

Generalized Variational Principles on Oscillation for Nonlinear Nonhomogeneous Differential Equations

open access: yesAbstract and Applied Analysis, 2011
Using the generalized variational principle and the Riccati technique, new oscillation criteria are established for the forced second-order nonlinear differential equation, which improves and generalizes some of the new results in literature.
Jing Shao, Fanwei Meng
doaj   +1 more source

A New Oscillation Criterion for Forced Second-Order Quasilinear Differential Equations

open access: yesDiscrete Dynamics in Nature and Society, 2011
By using the generalized variational principle and Riccati technique, a new oscillation criterion is established for second-order quasilinear differential equation with an oscillatory forcing term, which improves and generalizes some of new results in ...
Shao Jing
doaj   +1 more source

Oscillation criteria of second order neutral delay dynamic equations with distributed deviating arguments

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper we establish some oscillation theorems for second order neutral dynamic equations with distributed deviating arguments. We use the Riccati transformation technique to obtain sufficient conditions for the oscillation of all solutions ...
Ethiraju Thandapani   +1 more
doaj   +1 more source

Oscillation Criteria Based on a New Weighted Function for Linear Matrix Hamiltonian Systems

open access: yesDiscrete Dynamics in Nature and Society, 2011
By employing a generalized Riccati technique and an integral averaging technique, some new oscillation criteria are established for the second-order matrix differential system U′=A(x)U+B(t)V, V′=C(x)U−A∗(t)V, where A(t), B(t), and C(t) are (n×n)-matrices,
Yingxin Guo, Junchang Wang
doaj   +1 more source

An improved approach for studying oscillation of generalized Emden–Fowler neutral differential equation

open access: yesJournal of Inequalities and Applications, 2020
The purpose of this work is to study the oscillation criteria for generalized Emden–Fowler neutral differential equation. We establish new oscillation criteria using both the technique of comparison with first order delay equations and the technique of ...
Osama Moaaz   +2 more
doaj   +1 more source

Riccati differential equations /

open access: yes, 1972
Includes bibliographical references and index.Front Cover; Riccati Differential Equations; Copyright Page; Contents; Preface; Chapter One. Scalar Riccati Differential Equations; Chapter Two.
Reid, William T.(William Thomas),1907 October 4-1977.
core  

Oscillation Theorems for Second-Order Half-Linear Neutral Delay Dynamic Equations with Damping on Time Scales

open access: yesAbstract and Applied Analysis, 2014
We establish the oscillation criteria of Philos type for second-order half-linear neutral delay dynamic equations with damping on time scales by the generalized Riccati transformation and inequality technique.
Quanxin Zhang, Shouhua Liu
doaj   +1 more source

Optimal control and guidance of homing and docking tasks using an autonomous underwater vehicle

open access: yes, 2007
In this paper, the simulation results of a control and guidance strategy for homing and docking tasks using an autonomousunderwater vehicle are presented.
Jantapremjit, Pakpong, Wilson, P. A.
core   +1 more source

Oscillation of solutions for forced nonlinear neutral hyperbolic equations with functional arguments

open access: yesElectronic Journal of Differential Equations, 2011
This article studies the forced oscillatory behavior of solutions to nonlinear hyperbolic equations with functional arguments. Our main tools are the integral averaging method and a generalized Riccati technique.
Yutaka Shoukaku
doaj  

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