On the boundedness of solutions of nonlinear second-order differential equations with parameter
On the boundedness of the solutions of the continuous Riccati equation.
On the Branching of Solutions of Quadratic Differential Equations.
On the bundle of solutions of a nonhomogeneous second order linear differential equation
On the center of the generalized Liénard system
In this paper, we discuss the conditions for a center for the generalized Liénard system or with , , , , , , and for . By using a different technique, that is, by introducing auxiliary systems and using the differential inquality theorem, we are able to generalize and improve some results in [1], [2].
On the composition conjectures.
On the concave solutions of the Blasius equation.
On the conditions for the oscillation of solutions of non-linear third order differential equations
On the Cordovan ogive
On the critical periods of Liénard systems with cubic restoring forces.
On the Darboux transformation. I.
On the density of the range for some nonlinear operators
On the direction of pitchfork bifurcation.
On the discretization of a partial differential equation in the neighborhood of a periodic orbit.
On the dispersion structure of the differential equation y"=q(t)y having in the generalized Floquet theory the same characteristic multipliers
On the distribution of zeros of solutions of some types of differential equation
On the dynamics of the generalized Emden-Fowler equation.
On the exact multiplicity of solutions for boundary-value problems via computing the direction of bifurcations.
On the exceptional case in systems of non-linear differential equations
On the existence and boundedness of solutions of a nonlinear delay differential system