Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Let g be a real semisimple Lie algebra and G = Int(g). In this article, we relate the Jordan decomposition of X is an element of g (or g is an element of G) with the dynamics induced on generalized flag manifolds by the right invariant continuous-time flow generated by X (or the discrete-time flow generated by g). We characterize the recurrent set and the finest Morse decomposition (including its stable sets) of these flows and show that its entropy always vanishes. We characterize the structurally stable ones and compute the Conley index of the attractor Morse component. When the nilpotent part of X is trivial, we compute the Conley indexes of all Morse components. Finally, we consider the dynamical aspects of linear differential equations with periodic coefficients in g, which can be regarded as an extension of the dynamics generated by an element X is an element of g. In this context, we generalize Floquet theory and extend our previous results to this case.263923947Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FAPESP [07/07610-8]