本文证明了鞅的关于弱Lp拟范数的Doob型不等式,Burkholder—Gundy-Davis型不等式和Rosenthal型不等式.
In the present article,the weak versions with respect to weak Lp quasi-norm of the classical Dood's inequality, Burkholder-Gundy-Davis's inequality and Rosenthal's inequality for martingales are proved.