Special Session 17: New developments on nonlinear expectations

Quadratic Mean-Field Reflected BSDEs

Falei Wang
Shandong University
Peoples Rep of China
Co-Author(s):    
Abstract:
In this paper, we analyze mean-field reflected backward stochastic differential equations when the driver has quadratic growth in the second unknown z. Using a linearization technique and the BMO martingale theory, we first apply a fixed-point argument to establish the uniqueness and existence result for the case with bounded terminal condition and obstacle. Then, we develop a successive approximation procedure to remove the boundedness condition on the terminal condition and obstacle when the generator is concave (or convex) with respect to the second unknown. In a similar way, we also considermean reflected backward stochastic differential equations.Based on a joint work with Y. Hu and R. Moreau.