Statistics
Estimation of the trend function and auto-covariance for spatial models
[Estimation de la tendance et de l'auto-covariance pour les modèles spatiaux]
Comptes Rendus. Mathématique, Tome 357 (2019) no. 11-12, pp. 907-911.

Nous établissons tout d'abord, à travers une borne de type Berry–Esseen, la normalité asymptotique d'un estimateur localement linéaire de la fonction de régression dans le cadre d'un design déterministe, lorsque les erreurs sont des champs aléatoires spatiaux isotropiques stationnaires. Nous établissons ensuite la convergence faible d'un estimateur de la variance de ces erreurs dans un cadre spatial α-mélangeant.

We first establish, through a Berry–Esseen-type bound, the asymptotic normality of a local linear estimate of the regression function in a fixed design setting when the errors are stationary isotropic spatial random fields. On the other hand, we investigate the weak convergence of an empirical estimate of the variance of these errors in a general α-mixing setting.

Reçu le :
Accepté le :
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DOI : 10.1016/j.crma.2019.11.002
Bouka, Stéphane 1

1 Laboratoire URMI, Université des sciences et techniques de Masuku, Franceville, Gabon
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Bouka, Stéphane. Estimation of the trend function and auto-covariance for spatial models. Comptes Rendus. Mathématique, Tome 357 (2019) no. 11-12, pp. 907-911. doi : 10.1016/j.crma.2019.11.002. http://www.numdam.org/articles/10.1016/j.crma.2019.11.002/

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