带有随机生成元的倒向随机微分方程的共单调定理

该文利用Malliavin微分的方法研究带有随机生成元的倒向随机微分方程 (简记BSDE),给出了关于比较某些BSDE的解(y,z)中z的方法, 在此基础上继续研究(y,z)的某些重要性质, 指明了当BSDE的生成元是随机的情况下,Zengjing Chen等人文章中得到的共单调定理是不成立的, 然后寻找带有随机生成元的BSDE的共单调定理成立的特殊情况, 最后研究了一类g -期望的可加性以及Choquet积分表示定理.

Comonotonic Theorems of BSDEs with Stochastic Generators

In this paper, the authors explore the solution (y,z) of BSDEs via the theory of Malliavin derivative. Some methods of comparing part z have been given. And the authors point out that the comonotonic theorems for part z given by Zengjing Chen et al (see 3]) aren't correct when the generators of BSDEs are stochastic. Thus some special conditions, under which the comonotonic theorems for part z are correct even the generators of BSDEs are stochastic, are studied. Then, applying the comonotonic theorems, the authors study the additivity of a class of conditional g-expectations and Choquet integral represention theorems.