论文标题
关于矩阵有限决定性的注释
A note on finite determinacy of matrices
论文作者
论文摘要
在本说明中，我们给出了M中的矩阵A的必要条件，以确定为有限的G确定，其中m是2 x 2矩阵的环，其条目是无限场上的正式功率序列，而G是通过从两侧的可逆矩阵乘以乘积的坐标来对M进行的组组。
In this note, we give a necessary and sufficient condition for a matrix A in M to be finitely G-determined, where M is the ring of 2 x 2 matrices whose entries are formal power series over an infinite field, and G is a group acting on M by change of coordinates together with multiplication by invertible matrices from both sides.
