“…and thus the asymptotic relation (39) holds with h 1 = 0. As A v is also negative, the proof that the asymptotic relation ( 40) also holds with h 2 = 0 proceeds very similarly to the above.…”
Section: Discussionmentioning
confidence: 90%
“…Proof. We only derive condition (39) as the derivation of condition (40) proceeds similarly. Under the probability measure P u it holds that x(t) ā¼ N(š u (t), Ī£ u (t)).…”
Section: Assumption 4 the Matricesmentioning
confidence: 99%
“…Taking the limit as T ā ā of logarithm of this expression divided by š¾ 1 f 1 (T), gives (39). However, this is just the stability condition (34).…”
Section: Assumption 4 the Matricesmentioning
confidence: 99%
“…For risk-sensitive control with partial observations see, for example, References 14-16, for discrete-time systems see, for example, References 17,18, for connections with robust control see, for example, References 16,19-21, for the risk-sensitive maximum principle see, for example, References 22-24, for the risk-sensitive control of mean-filed systems see, for example, References 24-26 and 27, for the Hamilton-Jacobi-Bellman equation of risk-sensitive control see Reference 28, for the risk-sensitive differential games see, for example, References 29-35, and for more general exponential criteria that admit explicit closed-form solutions see References 36-39. The risk-sensitive control is particularly suitable for optimal investment problems, see, for example, References 36,[38][39][40][41][42][43] In this paper, we generalize the linear state-feedback stochastic mixed H 2 āH ā control problem by replacing the quadratic criteria (2) and (3) with the following two exponential-quadratic criteria:…”
Section: Introductionmentioning
confidence: 99%
“…The riskāsensitive control problem for linear stochastic systems with additive noise was introduced by Jacobson 13 who found an explicit closedāform solution in a linear stateāfeedback in the case of full observations. For riskāsensitive control with partial observations see, for example, References 14ā16, for discreteātime systems see, for example, References 17,18, for connections with robust control see, for example, References 16,19ā21, for the riskāsensitive maximum principle see, for example, References 22ā24, for the riskāsensitive control of meanāfiled systems see, for example, References 24ā26 and 27, for the HamiltonāJacobiāBellman equation of riskāsensitive control see Reference 28, for the riskāsensitive differential games see, for example, References 29ā35, and for more general exponential criteria that admit explicit closedāform solutions see References 36ā39. The riskāsensitive control is particularly suitable for optimal investment problems, see, for example, References 36,38ā43.…”
Summary
We introduce a riskāsensitive generalization of the mixed H2false/Hā$$ {H}_2/{H}_{\infty } $$ control problem for linear stochastic systems with additive noise. Two criteria of exponentialāquadratic form are used to generalise the usual quadratic criteria. The solutions are found in a linear stateāfeedback form for both the finite and the infinite horizon formulations in terms of coupled Riccati differential and algebraic equations. A change of measures for both criteria and completion of squares method is used to derive the solutions, and explicit sufficient conditions for the admissibility of controls are derived. An application to the problem of robust portfolio control in a market with random interest rate subject to a disturbance is also given.
“…and thus the asymptotic relation (39) holds with h 1 = 0. As A v is also negative, the proof that the asymptotic relation ( 40) also holds with h 2 = 0 proceeds very similarly to the above.…”
Section: Discussionmentioning
confidence: 90%
“…Proof. We only derive condition (39) as the derivation of condition (40) proceeds similarly. Under the probability measure P u it holds that x(t) ā¼ N(š u (t), Ī£ u (t)).…”
Section: Assumption 4 the Matricesmentioning
confidence: 99%
“…Taking the limit as T ā ā of logarithm of this expression divided by š¾ 1 f 1 (T), gives (39). However, this is just the stability condition (34).…”
Section: Assumption 4 the Matricesmentioning
confidence: 99%
“…For risk-sensitive control with partial observations see, for example, References 14-16, for discrete-time systems see, for example, References 17,18, for connections with robust control see, for example, References 16,19-21, for the risk-sensitive maximum principle see, for example, References 22-24, for the risk-sensitive control of mean-filed systems see, for example, References 24-26 and 27, for the Hamilton-Jacobi-Bellman equation of risk-sensitive control see Reference 28, for the risk-sensitive differential games see, for example, References 29-35, and for more general exponential criteria that admit explicit closed-form solutions see References 36-39. The risk-sensitive control is particularly suitable for optimal investment problems, see, for example, References 36,[38][39][40][41][42][43] In this paper, we generalize the linear state-feedback stochastic mixed H 2 āH ā control problem by replacing the quadratic criteria (2) and (3) with the following two exponential-quadratic criteria:…”
Section: Introductionmentioning
confidence: 99%
“…The riskāsensitive control problem for linear stochastic systems with additive noise was introduced by Jacobson 13 who found an explicit closedāform solution in a linear stateāfeedback in the case of full observations. For riskāsensitive control with partial observations see, for example, References 14ā16, for discreteātime systems see, for example, References 17,18, for connections with robust control see, for example, References 16,19ā21, for the riskāsensitive maximum principle see, for example, References 22ā24, for the riskāsensitive control of meanāfiled systems see, for example, References 24ā26 and 27, for the HamiltonāJacobiāBellman equation of riskāsensitive control see Reference 28, for the riskāsensitive differential games see, for example, References 29ā35, and for more general exponential criteria that admit explicit closedāform solutions see References 36ā39. The riskāsensitive control is particularly suitable for optimal investment problems, see, for example, References 36,38ā43.…”
Summary
We introduce a riskāsensitive generalization of the mixed H2false/Hā$$ {H}_2/{H}_{\infty } $$ control problem for linear stochastic systems with additive noise. Two criteria of exponentialāquadratic form are used to generalise the usual quadratic criteria. The solutions are found in a linear stateāfeedback form for both the finite and the infinite horizon formulations in terms of coupled Riccati differential and algebraic equations. A change of measures for both criteria and completion of squares method is used to derive the solutions, and explicit sufficient conditions for the admissibility of controls are derived. An application to the problem of robust portfolio control in a market with random interest rate subject to a disturbance is also given.
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