On étudie la vitesse exacte de convergence de certains schémas d'approximation associés à des équations différentielles stochastiques scalaires dirigées par le mouvement brownien fractionnaire B. On utilise le comportement asymptotique des variations à poids de B, et la limite de l'erreur entre la solution et son approximation est calculée de façon explicite.
Weighted power variations of fractional brownian motion B are used to compute the exact rate of convergence of some approximating schemes associated to one-dimensional stochastic differential equations (SDEs) driven by B. The limit of the error between the exact solution and the considered scheme is computed explicitly.
Mots clés : fractional brownian motion, weighted power variations, stochastic differential equation, Milstein's type scheme, exact rate of convergence
@article{AIHPB_2009__45_4_1085_0, author = {Gradinaru, Mihai and Nourdin, Ivan}, title = {Milstein's type schemes for fractional {SDEs}}, journal = {Annales de l'I.H.P. Probabilit\'es et statistiques}, pages = {1085--1098}, publisher = {Gauthier-Villars}, volume = {45}, number = {4}, year = {2009}, doi = {10.1214/08-AIHP196}, mrnumber = {2572165}, zbl = {1197.60070}, language = {en}, url = {http://archive.numdam.org/articles/10.1214/08-AIHP196/} }
TY - JOUR AU - Gradinaru, Mihai AU - Nourdin, Ivan TI - Milstein's type schemes for fractional SDEs JO - Annales de l'I.H.P. Probabilités et statistiques PY - 2009 SP - 1085 EP - 1098 VL - 45 IS - 4 PB - Gauthier-Villars UR - http://archive.numdam.org/articles/10.1214/08-AIHP196/ DO - 10.1214/08-AIHP196 LA - en ID - AIHPB_2009__45_4_1085_0 ER -
%0 Journal Article %A Gradinaru, Mihai %A Nourdin, Ivan %T Milstein's type schemes for fractional SDEs %J Annales de l'I.H.P. Probabilités et statistiques %D 2009 %P 1085-1098 %V 45 %N 4 %I Gauthier-Villars %U http://archive.numdam.org/articles/10.1214/08-AIHP196/ %R 10.1214/08-AIHP196 %G en %F AIHPB_2009__45_4_1085_0
Gradinaru, Mihai; Nourdin, Ivan. Milstein's type schemes for fractional SDEs. Annales de l'I.H.P. Probabilités et statistiques, Tome 45 (2009) no. 4, pp. 1085-1098. doi : 10.1214/08-AIHP196. http://archive.numdam.org/articles/10.1214/08-AIHP196/
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