Mathematics – Probability
Scientific paper
2012-02-12
Mathematics
Probability
Scientific paper
It is known that Markovian forward-backward systems are related to systems of semilinear parabolic PDEs. In this paper we extend this result to the non-Markovian case, proving that a non-Markovian forward-backward system is related to a certain path-dependent PDE (PPDE), a new kind of PDE recently introduced within the framework of functional Ito calculus. In particular, we give the definition of viscosity solution for the PPDE related to our specific case and we prove that, under quite general hypotheses, the forward-backward system provides the unique continuous viscosity solution to the path-dependent PDE.
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