L2-Solutions of y" = q (t) y and a Functional Equation
La théorie des perturbations au voisinage des systèmes hamiltoniens convexes
L-A пары с рациональной зависимостью от спектральных параметров. Преобразование Дарбу
Lagrangian stability of a class of second-order periodic systems.
Landau-type inequalities and -bounded solutions of neutral delay systems.
Large scale oscillatory behaviour in loaded asymmetric systems
Les canards ont la vie breve. IIIe partie.
Levin's comparison theorems for second order nonlinear differential equations and inequalities
L'existence d'une solution périodique d'une équation différentielle dans le cas où le second membre de l'équation n'est pas monotone par rapport à x
Liapunov-type inequality for delay-differential equations of third order
A Liapunov-type inequality for a class of third order delay-differential equations is derived.
Liapunov-type integral inequalities for certain higher-order differential equations.
Lie systems: theory, generalisations, and applications [Book]
Lie-point symmetries in bifurcation problems
Limit and integral properties of principal solutions for half-linear differential equations
Some asymptotic properties of principal solutions of the half-linear differential equation
Limit behavior of solutions of ordinary linear differential equations.
Limit Circle Results for Second Order Equations.
Limit cycle for the Brusselator by He's variational method.
Limit cycles for a class of polynomial systems and applications.
Limit cycles for vector fields with homogeneous components
We study planar polynomial differential equations with homogeneous components. This kind of equations present a simple and well known dynamics when the degrees (n and m) of both components coincide. Here we consider the case and we show that the dynamics is more complicated. In fact, we prove that such systems can exhibit periodic orbits only when nm is odd. Furthermore, for nm odd we give examples of such differential equations with at least (n+m)/2 limit cycles.
Limit cycles in a Kolmogorov-type model.