期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:2003
卷号:2003
期号:71
页码:4465-4471
DOI:10.1155/S0161171203210693
出版社:Hindawi Publishing Corporation
摘要:
We investigate when a Nagata ring R ( X ) can be written as a directed union of Artinian subrings. For a family of zero-dimensional rings { R α } α ∈ A , we show that ∏ α ∈ A R α ( X α ) is not a directed sum of Artinian subrings.