ordinary differential 
The method converts the frame problem into a set of ordinary differential equations using concepts from classical mechanics and orthogonal group techniques.


On the existence of periodic solutions for the thirdorder nonlinear ordinary differential equations


In this paper, the existence of periodic solution for the thirdorder nonlinear ordinary differential equation of the form {} is considered, where f, g, h and p are the continuous functions, and p(t+T)=p(t).


Uniqueness of positive solutions of a class of quasilinear ordinary differential equations


Uniqueness results are obtained for positive solutions of a class of quasilinear ordinary differential equations.


The corresponding reductions and the exact solutions due to the methods of the ordinary differential equations are then given by the methods.


Nonlinear partial differential equation (NLPDE) is converted into ordinary differential equation (ODE) via a new ansatz.


The RungeKutta method is used to solve the ordinary differential equations of the model.


Grouptheoretic analysis of ordinary differential equations, which is effective for analyzing deterministic control systems, is also useful in studying the decomposition of stochastic systems.


The properties of the Argmin operator and periodic oscillations in nonlinear systems described by ordinary differential equations and equations with a delayed argument whose right sides are Argmin operators are investigated.


A controllable linear system of ordinary differential equations not solvable for the derivative of the vector state function of the system is investigated.


The exact penalty method is applied to the problem of optimal control of a system described by ordinary differential equations.


The differential procedure of choosing the strategies of the market subjects was a system of ordinary differential delay equations.


A robust control for a system of ordinary differential equations is studied under the assumption that the system, along with control, is acted upon by a noncontrollable perturbation.


The player's moves obey the ordinary differential equations.


Research on computed stability of systems of ordinary differential equations with unbounded perturbations


The principle was derived on the basis of equivalence of the matrix representation of the Schr?dinger equation to the system of ordinary differential equations.


Convexity of reachable sets of nonlinear ordinary differential equations


A necessary and sufficient condition for the reachable set, i.e., the set of states reachable from a ball of initial states at some time, of an ordinary differential equation to be convex is presented.


It allows one to formalize an algorithm of change from the problems of optimization to a boundaryvalue problem for a system of ordinary differential equations in the case of any optimization problem for which the pulse formulation makes sense.

