Quasi-geometric rough paths and rough change of variable formula
نویسندگان
چکیده
En utilisant certaines notions de base la théorie des algèbres Hopf et quasi-battage, nous introduisons formellement une nouvelle famille chemins rugueux : les quasi géométriques. Nous en examinons propriétés principales. particulier, mettons relation avec intégrales itérées du mouvement brownien le concept « simple bracket extension », développé dans thèse David Kelly. Comme conséquence ces résultats, disposons d’un critère suffisant pour montrer toute γ∈(0,1) fonction suffisamment lisse φ:Rd→R formule changement variable rugueuse tout chemin γ-Hölder x:[0,T]→Rd, c’est-à-dire expression explicite φ(xt) termes d’intégrales rugueuses.
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ژورنال
عنوان ژورنال: Annales de l'I.H.P
سال: 2023
ISSN: ['0246-0203', '1778-7017']
DOI: https://doi.org/10.1214/22-aihp1297