Apparently, this user prefers to keep an air of mystery about them.
14 Why are Noetherian Rings important? dec 9 '13
8 For $M\otimes_R N$, why is it so imperative that $M$ be a right $R$-module and $N$ a left $R$-module? mar 8 '12
8 Good books and lecture notes about category theory. dec 31 '12
7 what are the uses of this identity jan 29 '12