We prove the theorem of linearized asymptotic stability for fractional differential equations. More precisely, we show that an equilibrium of a nonlinear Caputo fractional differential equation is asymptotically stable if its linearization at the equilibrium is asymptotically stable. As a consequence we extend Lyapunov's first method to fractional differential equations by proving that if the spectrum of the linearization is contained in the sector {λ ∈ C : | arg λ| > απ 2 } where α > 0 denotes the order of the fractional differential equation, then the equilibrium of the nonlinear fractional differential equation is asymptotically stable. * ndcong@math.ac.vn,
We show that any two trajectories of solutions of a one-dimensional fractional differential equation (FDE) either coincide or do not intersect each other. In contrary, in the higher dimensional case, two different trajectories can meet. Furthermore, one-dimensional FDEs and triangular systems of FDEs generate nonlocal fractional dynamical systems, whereas a higher dimensional FDE does, in general, not generate a nonlocal dynamical system.
Assuming that the underlying probability space is non-atomic,
we prove that products of random matrices (linear cocycles) with simple
Lyapunov spectrum form an $L^p$-dense set ($1 \leq p < \infty$) in the
space of all cocycles satisfying the integrability conditions of the
multiplicative ergodic theorem. However, the linear
cocycles with one-point spectrum are also $L^p$-dense.
Further, in any $L^\infty$-neighborhood of an orthogonal cocycle
there is a diagonalizable cocycle.For products of independent identically
distributed random matrices (with distribution $\mu$), simplicity of
the Lyapunov spectrum holds on a set of $\mu$'s which is open and
dense in both the topology of total variation and the topology of weak
convergence, hence is generic in both topologies. For products of
matrices which form a Markov chain, the spectrum is simple on a set of
transition functions dense in the topology of weak convergence.
We present some distinct asymptotic properties of solutions to Caputo fractional differential equations (FDEs). First, we show that the non-trivial solutions to a FDE can not converge to the fixed points faster than t −α , where α is the order of the FDE. Then, we introduce the notion of Mittag-Leffler stability which is suitable for systems of fractional-order. Next, we use this notion to describe the asymptotical behavior of solutions to FDEs by two approaches: Lyapunov's first method and Lyapunov's second method. Finally, we give a discussion on the relation between Lipschitz condition, stability and speed of decay, separation of trajectories to scalar FDEs.
Our aim in this paper is to investigate the asymptotic behavior of solutions of the perturbed linear fractional differential system. We show that if the original linear autonomous system is asymptotically stable then under the action of small (either linear or nonlinear) nonautonomous perturbations the trivial solution of the perturbed system is also asymptotically stable.
Our aim in this paper is to establish stable manifolds near hyperbolic equilibria of fractional differential equations in arbitrary finite dimensional spaces.
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