EuDML | Browse

The search session has expired. Please query the service again.

Items

All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Displaying 1061 – 1080 of 1670

On the Optimal Control of a Class of Time-Delay System

L. Boudjenah, M.F. Khelfi (2010)

Mathematical Modelling of Natural Phenomena

In this work we study the optimal control problem for a class of nonlinear time-delay systems via paratingent equation with delayed argument. We use an equivalence theorem between solutions of differential inclusions with time-delay and solutions of paratingent equations with delayed argument. We study the problem of optimal control which minimizes a certain cost function. To show the existence of optimal control, we use the main topological properties...

On the optimality of double-bracket flows.

Bloch, Anthony M., Iserles, Arieh (2004)

International Journal of Mathematics and Mathematical Sciences

On the Optimum Choice of Weight Functions in a Class of Variational Calculations.

L.M. Delves, M. Bain (1976/1977)

Numerische Mathematik

On the Order Conditions of Runge-Kutta Methods with Higher Derivatives.

E. Gekeler, R. Widman (1986/1987)

Numerische Mathematik

On the Order of Growth of Meromorphic Solutions of First-Order Differential Equations.

S.B. Bank, R.R Kaufman (1979)

Mathematische Annalen

On the order reduction of optimal control systems

Asen L. Dontchev (1985)

Banach Center Publications

On the oscillation of a class of linear homogeneous third order differential equations

N. Parhi, P. Das (1998)

Archivum Mathematicum

In this paper we have considered completely the equation $y^{'''} + a (t) y^{''} + b (t) y^{'} + c (t) y = 0, (*)$ where $a \in C^{2} ([σ, \infty), R)$ , $b \in C^{1} ([σ, \infty), R)$ , $c \in C ([σ, \infty), R)$ and $σ \in R$ such that $a (t) \leq 0$ , $b (t) \leq 0$ and $c (t) \leq 0$ . It has been shown that the set of all oscillatory solutions of (*) forms a two-dimensional subspace of the solution space of (*) provided that (*) has an oscillatory solution. This answers a question raised by S. Ahmad and A. C. Lazer earlier.

On the oscillation of a class of nonlinear differential systems with deviating arguments

Božena Mihalíková (1987)

Mathematica Slovaca

On the oscillation of a fourth order differential equation and its adjoint

Taylor, W.E. jr. (1978)

Portugaliae mathematica

On the oscillation of a linear differential equation of second order

Ján Ohriska (1989)

Czechoslovak Mathematical Journal

On the oscillation of certain class of third-order nonlinear delay differential equations

S. H. Saker, J. Džurina (2010)

Mathematica Bohemica

In this paper we consider the third-order nonlinear delay differential equation (*) ${(a (t) {(x^{''} (t))}^{γ})}^{'} + q (t) x^{γ} (τ (t)) = 0, t \geq t_{0},$ where $a (t)$ , $q (t)$ are positive functions, $γ > 0$ is a quotient of odd positive integers and the delay function $τ (t) \leq t$ satisfies ${lim}_{t \to i n f t y} τ (t) = i n f t y$ . We establish some sufficient conditions which ensure that (*) is oscillatory or the solutions converge to zero. Our results in the nondelay case extend and improve some known results and in the delay case the results can be applied to new classes of equations which are not covered by the known criteria....

Currently displaying 1061 – 1080 of 1670

Previous Page 54 Next

Displaying 1061 – 1080 of 1670

On the Optimal Control of a Class of Time-Delay System

On the optimality of double-bracket flows.

On the Optimum Choice of Weight Functions in a Class of Variational Calculations.

On the Order Conditions of Runge-Kutta Methods with Higher Derivatives.

On the Order of Growth of Meromorphic Solutions of First-Order Differential Equations.

On the order reduction of optimal control systems

On the oscillation of a class of linear homogeneous third order differential equations

On the oscillation of a class of nonlinear differential systems with deviating arguments

On the oscillation of a fourth order differential equation and its adjoint

On the oscillation of a linear differential equation of second order

On the oscillation of certain class of third-order nonlinear delay differential equations

On the oscillation of certain second-order differential equations.

On the oscillation of delay differential equations with real coefficients.

On the Oscillation of Exponential Polynomials.

On the oscillation of first-order neutral delay differential equations with real coefficients.

On the oscillation of impulsively damped halflinear oscillators.

On the oscillation of nonlinear differential systems with retarded arguments

On the oscillation of second order nonlinear neutral delay difference equations.

On the oscillation of second-order neutral delay differential equations.

On the oscillation of solutions of a class of linear fourth order differential equations

Currently displaying 1061 – 1080 of 1670