Apparently, this user prefers to keep an air of mystery about them.
7 Rings in which every non-unit is a zero divisor oct 18 '10
7 Do you find your students are less competent in basic algebra and arithmetic, and, if so, do you believe that this is due to overuse of calculators at an early level? feb 29 '12
3 Errata for Shafarevich's Basic Algebraic Geometry? nov 10 '10
2 About injective hull feb 3 '11
1 Depressed graduate student. jan 2 '12
1 Closed range for a continuous linear transformation jul 29 '10