基于不完全块循环约化的并行分裂迭代

对Ｍ阵用块循环约化后，给出新的分裂方式，该分裂构造的选代收敛，其收敛速度比Ｊａｃｏｂｉ等一般迭代收敛快，且有很好的并行性．

Estimates of Convergence Rate of Parallel Multisplitting Itertive Methods

This paper givers an estimated formula of convergence rate for parallel multisplitting iterative method.Using the formula,we can simplify and unify the proof of convergence of PMI_method.