Apparently, this user prefers to keep an air of mystery about them.
4 How to show that $\det(AB) =\det(A)\det(B)$ aug 29 '11
1 Tensors of order 3 aug 29 '11
1 Does there exist a bijection between empty sets? may 4 '12
1 System of linear equations, resulting from a weighted graph. How to solve this numerically? aug 28 '11
0 combinatorial optimization? What is the name of this problem and where can I find material for studying it? may 4 '12