Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4609233 | Journal of Differential Equations | 2017 | 30 Pages |
Abstract
We study controlled differential equations driven by a rough path (in the sense of T. Lyons) with an additional, possibly unbounded drift term. We show that the equation induces a solution flow if the drift grows at most linearly. Furthermore, we show that the semiflow exists assuming only appropriate one-sided growth conditions. We provide bounds for both the flow and the semiflow. Applied to stochastic analysis, our results imply strong completeness and the existence of a stochastic (semi)flow for a large class of stochastic differential equations. If the driving process is Gaussian, we can further deduce (essentially) sharp tail estimates for the (semi)flow and a Freidlin–Wentzell-type large deviation result.
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis
Authors
S. Riedel, M. Scheutzow,