Choix de modèle en analyse des séries chronologiques
In order to develop a general criterion for proving strong consistency of estimators in Statistics of stochastic processes, we study an extension, to the continuous-time case, of the strong law of large numbers for discrete time square integrable martingales (e.g. Neveu, 1965, 1972). Applications to estimation in diffusion models are given.
We prove the invariance of hyperbolic imbeddability under holomorphic fiber bundles with compact hyperbolic fibers. Moreover, we show an example concerning the relation between the Kobayashi relative intrinsic pseudo-distance of a holomorphic fiber bundle and the one in its base.
Let be a tree. Then a vertex of with degree one is a leaf of and a vertex of degree at least three is a branch vertex of . The set of leaves of is denoted by and the set of branch vertices of is denoted by . For two distinct vertices , of , let denote the unique path in connecting and Let be a tree with . For each leaf of , let denote the nearest branch vertex to . We delete from for all . The resulting subtree of is called the reducible stem of and denoted...
We propose a modification of the interface roughness (IFR) scattering form factor in intersubband transitions.We properly derived a formula for the form factor for IFR scattering in terms of the integrals of the envelope wave functions. This novel form factor is more global nature than the old one (proposed by Ando) and may be suitable for a wide range of applications. In this paper, we calculate and compare the absorption linewidth with the application of the old form factor and novel one. In different...
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