关于矩阵有限确定性的一个注记

arXiv: Algebraic Geometry Pub Date : 2020-08-30 DOI:10.4310/pamq.2020.v16.n4.a10

Thuy Huong Pham, P. Marques

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引用次数: 0

摘要

本文给出了M中的矩阵a是有限G确定的一个充分必要条件，其中M是由2 × 2矩阵组成的环，其元素是无限域上的形式幂级数，G是一个通过变换坐标和两侧可逆矩阵相乘作用于M的群。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A note on ﬁnite determinacy of matrices

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.

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arXiv: Algebraic Geometry

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