Grad student at MIT Mathematics, working in algebraic combinatorics and dabbling in category theory and TCS.
17 Why are Noetherian Rings important? Dec 9 '13
12 Is this determinant always non-negative? Aug 4 '15
10 Good books and lecture notes about category theory. Dec 31 '12
9 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 Is Orzech's generalization of the surjective-endomorphism-is-injective theorem correct? Dec 13 '14
8 what are the uses of this identity Jan 29 '12