Probability Theory
The harmonic measure and a Reuter-type result for a process with Bessel components
[La mesure harmonique et un résultat du type Reuter pour un processus à composantes besséliennes]
Comptes Rendus. Mathématique, Tome 340 (2005) no. 3, pp. 239-244.

Soit Bp,q le processus (Bp,Bq) dans R2 ayant deux composantes de Bessel indépendantes Bp et Bq d'indices, respectivement, p et q strictement positifs. Dans cet article, nous trouvons explicitement la loi du temps et place de sortie d'un cercle, centré à l'origine, quand Bp,q démarre du centre et on déduit un théorème d'indépendance apparenté à celui de Reuter. On utilise principalement des outils analytiques de la théorie des EDP.

Let Bp,q be the R2-valued process (Bp,Bq) with independent Bessel components Bp and Bq with indices p and q strictly positive. In this paper we compute explicitly the law of the hitting time and place of a circle, centered at the origin, when Bp,q starts from the center and deduce a Reuter-type independence result. We use mainly analytical tools from PDE theory.

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Accepté le :
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DOI : 10.1016/j.crma.2004.11.012
Ziadi, Abdelkader 1 ; Bencherif-Madani, Abdelatif 1

1 Université Ferhat Abbas, faculté des sciences, département de mathématiques, Sétif 19000, Algérie
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Ziadi, Abdelkader; Bencherif-Madani, Abdelatif. The harmonic measure and a Reuter-type result for a process with Bessel components. Comptes Rendus. Mathématique, Tome 340 (2005) no. 3, pp. 239-244. doi : 10.1016/j.crma.2004.11.012. http://www.numdam.org/articles/10.1016/j.crma.2004.11.012/

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