Weak convergence in the functional autoregressive model

Authors:
André Mas
Affiliations:
Institut de Modélisation Mathématiques de Montpellier, UMR 5149, Université Montpellier 2, CC051, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
Venue:
Journal of Multivariate Analysis
Year:
2007

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Abstract

The functional autoregressive model is a Markov model taylored for data of functional nature. It revealed fruitful when attempting to model samples of dependent random curves and has been widely studied along the past few years. This article aims at completing the theoretical study of the model by addressing the issue of weak convergence for estimates from the model. The main difficulties stem from an underlying inverse problem as well as from dependence between the data. Traditional facts about weak convergence in non-parametric models appear: the normalizing sequence is not an On, a bias term appears. Several original features of the functional framework are pointed out.