讨论预条件后用迭代法求解的线性方程组Ax=b.在预条件的基础上引入参数,给出一种含参数形式的非负分裂.证明这种分裂形式可以加速SOR迭代法的收敛性,而且收敛效果超过AOR迭代法的收敛性,说明这种分裂形式更好.
The iterative method to solve the linear system Ax=b in preconditioned is discussed.A kind of nonnegative split with parameter is given on the base of the preconditioned.This new splitting form is proved to accelerate SOR iterative method convergence not only better than the general iterative method,but also convergence rate surpass the AOR iterative method.