文中对牛顿迭代及其相关方法的分形几何集进行构建，将动态参数和异步用于牛顿迭代，构造并研究了广义牛顿变换的J集。
In this paper create and study the generalized Newton transform J-Set, dynamic parameter and asynchronous Newton's method, analyze the effect of error and dynamic parameter.
此外，对这两种积的局部割集和广义割集的性质也进行了考虑。
In addition, properties on local cuts and generalized cuts in these two kinds of product of graphs are also considered.
通过引进覆盖等价的概念，给出了给定论域上任意集在不同覆盖下具有相同正负域覆盖广义粗集的充要条件。
Based on the equivalent covering, the necessary and sufficient condition for different covering to generate the same positive-negative region covering generalized rough sets is given.
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