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Boundary-influenced robust controls: two network examples

Published online by Cambridge University Press:  11 October 2006

Martin V. Day*
Affiliation:
Department of Mathematics, Virginia Tech, Blacksburg, Virginia 24061-0123 USA; [email protected]
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Abstract

We consider the differential game associated with robust control of asystem in a compact state domain, using Skorokhod dynamics on theboundary. A specific class of problems motivated by queueing network controlis considered. A constructive approach to the Hamilton-Jacobi-Isaacsequation is developed which is based on an appropriate family ofextremals, including boundary extremals for which the Skorokhoddynamics are active. A number of technical lemmas and a structuredverification theorem are formulated to support the use of thistechnique in simple examples. Two examples are considered whichillustrate the application of the results. This extends previous workby Ball, Day and others on such problems, but with a new emphasis onproblems for which the Skorokhod dynamics play a critical role. Connections with the viscosity-sense oblique derivative conditions ofLions and others are noted.

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2006

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References

Atar, R. and Dupuis, P., A differential game with constrained dynamics and viscosity solutions of a related HJB equation. Nonlinear Anal. 51 (2002) 11051130. CrossRef
Atar, R., Dupuis, P. and Shwartz, A., An escape criterion for queueing networks: Asymptotic risk-sensitive control via differential games. Math. Op. Res. 28 (2003) 801835.
R. Atar, P. Dupuis and A. Schwartz, Explicit solutions for a network control problem in the large deviation regime, Queueing Systems 46 (2004) 159–176.
F. Avram, Optimal control of fluid limits of queueing networks and stochasticity corrections, in Mathematics of Stochastic Manufacturing Systems, G. Yin and Q. Zhang Eds., AMS, Lect. Appl. Math. 33 (1996).
F. Avram, D. Bertsimas, M. Ricard, Fluid models of sequencing problems in open queueing networks; and optimal control approach, in Stochastic Networks, F.P. Kelly and R.J. Williams Eds., Springer-Verlag, NY (1995).
J.A. Ball, M.V. Day and P. Kachroo, Robust feedback control of a single server queueing system. Math. Control, Signals, Syst. 12 (1999) 307–345.
Ball, J.A., Day, M.V., Kachroo, P. and Robust, T. Yu L 2-Gain for nonlinear systems with projection dynamics and input constraints: an example from traffic control. Automatica 35 (1999) 429444. CrossRef
M. Bardi and I. Cappuzzo-Dolcetta, Optimal Control and Viscosity Solutions of Hamilton-Jacobi-Bellman Equations. Birkhäuser, Boston (1997).
T. Basar and P. Bernhard, H-Optimal Control and Related Minimax Design Problems – A Dynamic game approach. Birkhäuser, Boston (1991).
Budhiraja, A. and Dupuis, P., Simple necessary and sufficient conditions for the stability of constrained processes. SIAM J. Appl. Math. 59 (1999) 16861700. CrossRef
Chen, H. and Mandelbaum, A., Discrete flow networks: bottleneck analysis and fluid approximations. Math. Oper. Res. 16 (1991) 408446. CrossRef
H. Chen and D.D. Yao, Fundamentals of Queueing Networks: Performance, Asymptotics and Optimization. Springer-Verlag, N.Y. (2001).
J.G. Dai, On the positive Harris recurrence for multiclass queueing networks: a unified approach via fluid models. Ann. Appl. Prob. 5 (1995) 49–77.
On, M.V. Day the velocity projection for polyhedral Skorokhod problems. Appl. Math. E-Notes 5 (2005) 5259.
M.V. Day, J. Hall, J. Menendez, D. Potter and I. Rothstein, Robust optimal service analysis of single-server re-entrant queues. Comput. Optim. Appl. 22 (2002), 261–302.
Dupuis, P. and Ishii, H., Lipschitz, On continuity of the solution mapping of the Skorokhod problem, with applications. Stochastics and Stochastics Reports 35 (1991) 3162. CrossRef
Dupuis, P. and Nagurney, A., Dynamical systems and variational inequalities. Annals Op. Res. 44 (1993) 942.
Dupuis, P. and Ramanan, K., Convex duality and the Skorokhod problem, I and II. Prob. Theor. Rel. Fields 115 (1999) 153195, 197–236. CrossRef
D. Eng, J. Humphrey and S. Meyn, Fluid network models: linear programs for control and performance bounds in Proc. of the 13th World Congress of International Federation of Automatic Control B (1996) 19–24.
A.F. Filippov, Differential Equations with Discontinuous Right Hand Sides, Kluwer Academic Publishers (1988).
Fleming, W.H. and James, M.R., The risk-sensitive index and the H 2 and H morms for nonlinear systems. Math. Control Signals Syst. 8 (1995) 199221. CrossRef
Fleming, W.H. and McEneaney, W.M., Risk-sensitive control on an infinite time horizon. SAIM J. Control Opt. 33 (1995) 18811915. CrossRef
J.M. Harrison, Brownian models of queueing networks with heterogeneous customer populations, in Proc. of IMA Workshop on Stochastic Differential Systems. Springer-Verlag (1988).
P. Hartman, Ordinary Differential Equations (second edition). Birkhauser, Boston (1982).
R. Isaacs, Differential Games. Wiley, New York (1965).
P.L. Lions, Neumann type boundary conditions for Hamilton-Jacobi equations, Duke Math. J. 52 (1985) 793–820.
Luo, X. and Bertsimas, D., A new algorithm for state-constrained separated continuous linear programs. SIAM J. Control Opt. 37 (1998) 177210. CrossRef
S. Meyn, Stability and optimizations of queueing networks and their fluid models, in Mathematics of Stochastic Manufacturing Systems, G. Yin and Q. Zhang Eds., Lect. Appl. Math. 33, AMS (1996).
Meyn, S., Transience of multiclass queueing networks via fluid limit models. Ann. Appl. Prob. 5 (1995) 946957. CrossRef
Meyn, S., Sequencing and routing in multiclass queueing networks, part 1: feedback regulation. SIAM J. Control Optim. 40 (2001) 741776. CrossRef
Reiman, M.I., Open queueing networks in heavy traffic. Math. Oper. Res. 9 (1984) 441458.
R.T. Rockafellar, Convex Analysis. Princeton Univ. Press, Princeton (1970).
Soravia, P., H control of nonlinear systems: differential games and viscosity solutions. SIAM J. Control Optim. 34 (1996) 0711097.
G. Weiss, On optimal draining of re-entrant fluid lines, in Stochastic Networks, F.P. Kelly and R.J. Williams, Eds. Springer-Verlag, NY (1995).
G. Weiss, A simplex based algorithm to solve separated continuous linear programs, to appear (preprint available at http://stat.haifa.ac.il/~gweiss/).
P. Whittle, Risk-sensitive Optimal Control. J. Wiley, Chichester (1990).
R.J. Williams, Semimartingale reflecting Brownian motions in the orthant, Stochastic Networks, Springer, New York IMA Vol. Math. Appl. 71 (1995) 125–137.