A framework of BSDEs with stochastic Lipschitz coefficients

Faculty of Mathematics, Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea.

^* Corresponding author: cioc13@ryongnamsan.edu.kp

Received: 26 December 2018
Accepted: 9 April 2020

Abstract

In this paper, we suggest an effective technique based on random time-change for dealing with a large class of backward stochastic differential equations (BSDEs for short) with stochastic Lipschitz coefficients. By means of random time-change, we show the relation between the BSDEs with stochastic Lipschitz coefficients and the ones with bounded Lipschitz coefficients and stopping terminal time, so they are possible to be exchanged with each other from one type to another. In other words, the stochastic Lipschitz condition is not essential in the context of BSDEs with random terminal time. Using this technique, we obtain a couple of new results of BSDEs with stochastic Lipschitz (or monotone) coefficients.