C2 Property of Column Finite Matrix Rings

• Published in: Український математичний журнал
• Date: 2014
• Main Authors: Liang Shen, Jianlong Chen
• Format: Article
• Language: English
• Published: Інститут математики НАН України 2014
• Subjects: Короткі повідомлення
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/166322
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: C2 Property of Column Finite Matrix Rings / Liang Shen, Jianlong Chen // Український математичний журнал. — 2014. — Т. 66, № 12. — С. 1718–1722. — Бібліогр.: 6 назв. — англ.

A ring R is called a right C2 ring if any right ideal of R isomorphic to a direct summand of RR is also a direct summand. The ring R is called a right C3 ring if any sum of two independent summands of R is also a direct summand. It is well known that a right C2 ring must be a right C3 ring but the c...