Relationship between different types of stability for linear almost periodic systems in Banach spaces.
Relative boundedness and compactness theory for second-order differential operators.
Relative controllability of nonlinear fractional delay integrodifferential systems with multiple delays in control
This paper describes the controllability of nonlinear fractional delay integrodifferential systems with multiple delays in control. Necessary and sufficient conditions for the controllability criteria for linear fractional delay system are established. Further sufficient conditions for the controllability of nonlinear fractional delay integrodifferential system are obtained by using fixed point arguments. Examples are provided to illustrate the results.
Relatively bounded and compact perturbations of th order differential operators.
Relativistic wave equations with fractional derivatives and pseudodifferential operators.
Relaxation lengths and nonnegative solutions in neutron transport
Relaxation oscillations in systems with different time scales
Reliable numerical modelling of malaria propagation
We investigate biological processes, particularly the propagation of malaria. Both the continuous and the numerical models on some fixed mesh should preserve the basic qualitative properties of the original phenomenon. Our main goal is to give the conditions for the discrete (numerical) models of the malaria phenomena under which they possess some given qualitative property, namely, to be between zero and one. The conditions which guarantee this requirement are related to the time-discretization...
Remark concerning oscillatory properties of solutions of a certain nonlinear equation of the third order
Sufficient conditions for oscillation of a certain nonlinear trinomial third order differential equation are proved.
Remark in connection with an article of G. G. Hamedani: “Global existence of solutions of certain functional-differential equations” [Časopis Pěst. Mat. 106 (1981), 48-51]
Remark on Duffing equation with Dirichlet boundary condition.
Remark on Sturm-Liouville functions
Remark to the problem of eigenvalues of Schrödinger equation
Remark to transformations of functional-differential equations of the first order
Remark to transformations of linear differential and functional-differential equations
For linear differential and functional-differential equations of the -th order criteria of equivalence with respect to the pointwise transformation are derived.
Remarks concerning Driver's equation
We consider uniqueness for the initial value problem x' = 1 + f(x) - f(t), x(0) = 0. Several uniqueness criteria are given as well as an example of non-uniqueness.
Remarks concerning J. Witte's theorem and its applications
Remarks on a three-point boundary value problem in a differential equation of the third order
Remarks on bounded solutions for some nonautonomous ODE.
Remarks on existence of positive solutions of some integral equations
We study the existence of positive solutions of the integral equation in both and spaces, where and . Throughout this paper is nonnegative but the nonlinearity may take negative values. The Krasnosielski fixed point theorem on cone is used.