Niektoré vlastnosti diferenciálnej rovnice
Niektoré vlastnosti diferenciálnej rovnice
Nielsen number and differential equations.
Nilpotent second order linear differential equations with fuchsian singularities
Nine-stage Multi-derivative Runge-Kutta method of order 12
Nodal solutions for a class of fourth-order two-point boundary value problems.
Nodal solutions for a second-order -point boundary value problem
We study the existence of nodal solutions of the -point boundary value problem where
Nodes of eigenfunctions of a certain class of ordinary differential equations of the fourth order
Noether symmetries and critical exponents.
Noise Shaping in Neural Populations with Global Delayed Feedback
The interplay between intrinsic and network dynamics has been the focus of many investigations. Here we use a combination of theoretical and numerical approaches to study the effects of delayed global feedback on the information transmission properties of neural networks. Specifically, we compare networks of neurons that display intrinsic interspike interval correlations (nonrenewal) to networks that do not (renewal). We find that excitatory and...
Nombre de rotation, structures géométriques sur un cercle et groupe de Bott-Virasoro
Une classification complète des stabilisateurs coadjoints du groupe de Bott-Virasoro est obtenue par une méthode essentiellement géométrique. L’outil de base est le nombre de rotation d’un difféomorphisme du cercle. En particulier, nous mettons en évidence la présence de groupes d’isotropie non-connexes et montrons que la transformation de Miura des opérateurs de Hill peut s’interpréter comme une application moment sur l’espace des structures affines du cercle.
Non linear quasi variational inequalities and stochastic impulse control theory
Non oscillating solutions of analytic gradient vector fields
Let be an integral solution of an analytic real vector field defined in a neighbordhood of . Suppose that has a single limit point, . We say that is non oscillating if, for any analytic surface , either is contained in or cuts only finitely many times. In this paper we give a sufficient condition for to be non oscillating. It is established in terms of the existence of “generalized iterated tangents”, i.e. the existence of a single limit point for any transform property for...
Non-autonomous 2D Navier–Stokes system with a simple global attractor and some averaging problems
We study the global attractor of the non-autonomous 2D Navier–Stokes system with time-dependent external force . We assume that is a translation compact function and the corresponding Grashof number is small. Then the global attractor has a simple structure: it is the closure of all the values of the unique bounded complete trajectory of the Navier–Stokes system. In particular, if is a quasiperiodic function with respect to , then the attractor is a continuous image of a torus. Moreover the...
Non-autonomous 2D Navier–Stokes system with a simple global attractor and some averaging problems
We study the global attractor of the non-autonomous 2D Navier–Stokes system with time-dependent external force g(x,t). We assume that g(x,t) is a translation compact function and the corresponding Grashof number is small. Then the global attractor has a simple structure: it is the closure of all the values of the unique bounded complete trajectory of the Navier–Stokes system. In particular, if g(x,t) is a quasiperiodic function with respect to t, then the attractor is a continuous image...
Nonautonomous attractors of skew-product flows with digitized driving systems.
Nonautonomous differential equations of alternately retarded and advanced type.
Nonautonomous functional equations and nonlinear evolution operators
Non-autonomous inhomogeneous boundary Cauchy problems.
Non-autonomous inhomogeneous boundary Cauchy problems and retarded equations.