Apparently, this user prefers to keep an air of mystery about them.
2 Example of a vector norm for which $\|I\|<1$ nov 1 '11
2 Showing existence of a spanning tree in a graph with two kinds of edges using $k$ of one kind of edge apr 17 '12
2 Does having an orthonormal basis imply that the vectors in that basis must all be orthongonal? apr 18 '12
1 Equivalence of a Vector Norm being Absolute nov 1 '11
0 Generating function with dependencies apr 17 '12