A note on retracts of polynomial rings in three variables
A note on retracts of polynomial rings in three variables
复制标题
关于三变量多项式环缩回的注记
DOI：
10.1016/j.jalgebra.2019.05.040
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发表时间：
2019
影响因子：
0.9
通讯作者：
Nagamine Takanori
中科院分区：
文献类型：
--
作者：
Kitazawa Chiaki;Kojima Hideo;Nagamine Takanori;Nagamine Takanori
对于多项式环的收缩，Costa在[1]中问我们k [n]的每个收缩是否也是多项式环，这里k是域。本文在k是特征为零的域且n= 3的情况下给出了肯定的回答。
For retracts of the polynomial ring, in [1], Costa asks us whether every retract of k [n] is also the polynomial ring or not, where k is a field. In this paper, we give an affirmative answer in the case where k is a field of characteristic zero and n= 3.