On a distribution of zeros of solutions of an iterated differential equation of the -th order
On a fundamental central dispersion of the first kind and the Abel functional equation in strongly regular spaces of continuous functions
On a higher-order evolution equation with a Stepanov-bounded solution.
On a maximal number of period annuli.
On a new reliable algorithm.
On a nonlinear ordinary differential equation
On a nonlinear problem for third-order differential equations
On a nonlinear second order periodic boundaryvalue problem with Carathéodory functions
The periodic boundary value problem u''(t) = f(t,u(t),u'(t)) with u(0) = u(2π) and u'(0) = u'(2π) is studied using the generalized method of upper and lower solutions, where f is a Carathéodory function satisfying a Nagumo condition. The existence of solutions is obtained under suitable conditions on f. The results improve and generalize the work of M.-X. Wang et al. [5].
On a periodic predator-prey system with Holling III functional response and stage structure for prey.
On a perturbed nonlinear third order differential equation
In this paper we will study some asymptotic properties of a nonlinear third order differential equation viewed as a perturbation of a simpler nonlinear equation investigated recently by the authors in [4].
On a q-deformed harmonic oscillator with variable linear momentum.
On a quasi-periodic Hopf bifurcation
On a reduction of nonlinear ordinary differential equations at an irregular type singularity
On a result of Etgen and Lewis
On a spectral criterion for almost periodicity of solutions of periodic evolution equations.
On a structure of second order linear differential equations with periodic coefficients having the same discriminant
On a structure of the intersection of the set of dispersions of two second-order linear differential equations
On a theorem of Nehari and quasidiscs.
On a transformation of solutions of the differential equation with a complex coefficient of a real variable
On algebraic approach in quadratic systems.