Nous étudions γk(x2, …, xk; t), le temps local renormalisé d'auto-intersection d'ordre k du mouvement brownien dans R1. Notre résultat principal montre que γk(x2, …, xk; t) est presque sûrement continûment différentiable dans les variables spatiales.
We study γk(x2, …, xk; t), the k-fold renormalized self-intersection local time for brownian motion in R1. Our main result says that γk(x2, …, xk; t) is continuously differentiable in the spatial variables, with probability 1.
@article{AIHPB_2010__46_4_1025_0, author = {Rosen, Jay S.}, title = {Continuous differentiability of renormalized intersection local times in $R^1$}, journal = {Annales de l'I.H.P. Probabilit\'es et statistiques}, volume = {46}, year = {2010}, pages = {1025-1041}, doi = {10.1214/09-AIHP338}, zbl = {1210.60084}, language = {en}, url = {http://dml.mathdoc.fr/item/AIHPB_2010__46_4_1025_0} }
Rosen, Jay S. Continuous differentiability of renormalized intersection local times in $R^1$. Annales de l'I.H.P. Probabilités et statistiques, Tome 46 (2010) pp. 1025-1041. doi : 10.1214/09-AIHP338. http://gdmltest.u-ga.fr/item/AIHPB_2010__46_4_1025_0/
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