Apparently, this user prefers to keep an air of mystery about them.
6 If the product of an invertible symmetric matrix and some other matrix is symmetric, is that other matrix also symmetric? jan 21 '11
3 Improve my proof about this $C^\infty$ function sep 15 '10
2 What is the correct way to write product or sum in capital pi or capital sigma notation when you wish to exclude an index? sep 23 '10
2 In tensor notation in Spivak's Calculus on Manifolds, what is that character that looks like a 3? dec 19 '10
2 Characterizing orthonormal basis of I-c v v' sep 7 '10
1 a sequential game of dice sep 7 '10