Strong envelope and strong supermartingale: application to reflected bsdes
arXiv:1112.0255
Abstract
We provide several characterizations to identify Strong envelop (for bounded measurable process) and Strong super-martingale (for non-negative right upper semi-continuous process of the class $\Dc$). As examples of application, we prove existence and uniqueness of reflected backward stochastic differential equation with lower barrier (RBSDB in short) in two cases: . the obstacle is a measurable bounded process; . the obstacle is a right upper semicontinuous optional process of class $\Dc$.