{ "id": "0806.1837", "version": "v1", "published": "2008-06-11T10:46:27.000Z", "updated": "2008-06-11T10:46:27.000Z", "title": "Stochastic equations with delay: optimal control via BSDEs and regular solutions of Hamilton-Jacobi-Bellman equations", "authors": [ "Marco Fuhrman", "Federica Masiero", "Gianmario Tessitore" ], "journal": "Siam Journal on Control and Optimization 48 Issue: 7 (2010) 4624-4651", "categories": [ "math.PR" ], "abstract": "We consider an Ito stochastic differential equation with delay, driven by brownian motion, whose solution, by an appropriate reformulation, defines a Markov process $X$ with values in a space of continuous functions $\\mathbf C$, with generator $\\mathcal L$. We then consider a backward stochastic differential equation depending on $X$, with unknown processes $(Y,Z)$, and we study properties of the resulting system, in particular we identify the process $Z$ as a deterministic functional of $X$. We next prove that the forward-backward system provides a suitable solution to a class of parabolic partial differential equations on the space $\\mathbf C$ driven by $\\mathcal L$, and we apply this result to prove a characterization of the fair price and the hedging strategy for a financial market with memory effects. We also include applications to optimal stochastic control of differential equation with delay: in particular we characterize optimal controls as feedback laws in terms the process $X$.", "revisions": [ { "version": "v1", "updated": "2008-06-11T10:46:27.000Z" } ], "analyses": { "keywords": [ "optimal control", "regular solutions", "stochastic equations", "hamilton-jacobi-bellman equations", "stochastic differential equation depending" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0806.1837F" } } }