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Summary: The Annals of Applied Probability
2007, Vol. 17, Nos. 5/6, 17451776
DOI: 10.1214/07-AAP443
© Institute of Mathematical Statistics, 2007
HJB EQUATIONS FOR CERTAIN SINGULARLY
CONTROLLED DIFFUSIONS
BY RAMI ATAR,1 AMARJIT BUDHIRAJA2 AND RUTH J. WILLIAMS3
TechnionIsrael Institute of Technology, University of North Carolina
and University of California
Given a closed, bounded convex set W Rd with nonempty interior,
we consider a control problem in which the state process W and the control
process U satisfy
Wt = w0 +
t
0
(Ws)ds +
t
0
(Ws)dZs + GUt W, t 0,
where Z is a standard, multi-dimensional Brownian motion, , C0,1(W),
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