Apparently, this user prefers to keep an air of mystery about them.
7 Why is tensor product of linear maps defined as $(S\otimes T)(v\otimes w)=S(v)\otimes T(w)$? jul 18
4 High-Dimensional Topology vs. Low-Dimensional Topology: What are the hard questions in the former? may 16 '14
3 Types of singularities of a function jul 19