On the Gap Between Deterministic and Stochastic Ordinary Differential Equations
Sussmann, Hector J.
Ann. Probab., Tome 6 (1978) no. 6, p. 19-41 / Harvested from Project Euclid
We consider stochastic differential equations $dx = f(x) dt + g(x) dw$, where $x$ is a vector in $n$-dimensional space, and $w$ is an arbitrary process with continuous sample paths. We show that the stochastic equation can be solved by simply solving, for each sample path of the process $w$, the corresponding nonstochastic ordinary differential equation. The precise requirements on the vector fields $f$ and $g$ are: (i) that $g$ be continuously differentiable and (ii) that the entries of $f$ and the partial derivatives of the entries of $g$ be locally Lipschitzian. For the particular case of a Wiener process $w$, the solutions obtained this way turn out to be the solutions in the sense of Stratonovich.
Publié le : 1978-02-14
Classification:  Stochastic differential equations,  sample paths,  60H10,  34F05
@article{1176995608,
     author = {Sussmann, Hector J.},
     title = {On the Gap Between Deterministic and Stochastic Ordinary Differential Equations},
     journal = {Ann. Probab.},
     volume = {6},
     number = {6},
     year = {1978},
     pages = { 19-41},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1176995608}
}
Sussmann, Hector J. On the Gap Between Deterministic and Stochastic Ordinary Differential Equations. Ann. Probab., Tome 6 (1978) no. 6, pp.  19-41. http://gdmltest.u-ga.fr/item/1176995608/