Abstract
Consider a complete filtration \({\mathcal{F}}_t\), t∈[0,T]} and an m-dimensional Wiener process {W(t), t ∈ [0,T]} with respect to it. By definition, a stochastic differential equation (SDE) is an equation of the form with X 0=ξ, where ξ is an \({\mathcal{F}}_0\)-measurable random vector, \(b=b(t,x): [0,T]\times \mathbb{R}^n\rightarrow \mathbb{R}^n\), and \(\sigma=\sigma(t,x): [0,T]\times \mathbb{R}^n\rightarrow \mathbb{R}^{n\times m}\) are measurable functions.
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Gusak, D., Kukush, A., Kulik, A., Mishura, Y., Pilipenko, A. (2010). Stochastic differential equations. In: Theory of Stochastic Processes. Problem Books in Mathematics. Springer, New York, NY. https://doi.org/10.1007/978-0-387-87862-1_14
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DOI: https://doi.org/10.1007/978-0-387-87862-1_14
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