Singular Limit of BSDEs and Optimal Control of Two Scale Stochastic Systems in Infinite Dimensional Spaces
In this paper we study by probabilistic techniques the convergence of the value function for a two-scale, infinite-dimensional, stochastic controlled system as the ratio between the two evolution speeds diverges. The value function is represented as the solution of a backward stochastic differential...
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| Vydáno v: | Applied mathematics & optimization Ročník 83; číslo 2; s. 1025 - 1051 |
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| Hlavní autoři: | , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
New York
Springer US
01.04.2021
Springer Nature B.V |
| Témata: | |
| ISSN: | 0095-4616, 1432-0606 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | In this paper we study by probabilistic techniques the convergence of the value function for a two-scale, infinite-dimensional, stochastic controlled system as the ratio between the two evolution speeds diverges. The value function is represented as the solution of a
backward stochastic differential equation
(BSDE) that it is shown to converge towards a
reduced
BSDE. The noise is assumed to be additive both in the slow and the fast equations for the state. Some non degeneracy condition on the slow equation is required. The limit BSDE involves the solution of an
ergodic
BSDE and is itself interpreted as the value function of an auxiliary stochastic control problem on a reduced state space. |
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| Bibliografie: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISSN: | 0095-4616 1432-0606 |
| DOI: | 10.1007/s00245-019-09577-y |