Mathematics
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stander Qiu

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 3 years, 5 months
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  • Last seen Sep 13 at 7:57

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Top posts (42) All Questions Answers | Votes Newest

23 What is the original source of “fiber” in mathematics? Nov 6 '17
4 Existence of the vector that decomposes the trace of diagonal and symmetric matrix Dec 10 '17
4 'Diagonalization' of Jordan block Jan 9 '18
3 How to prove positive semidefiniteness of square root and square of two matrices Oct 22 '17
3 How to find the dual cone? Aug 21 '16
3 Find rank of the special block symmetric and persymmetric matrix Oct 10 '18
2 Exist a linear combination for full rank matrix? Sep 21 '18
2 Can matrices with dependent columns being QR factorization? May 25 '16
2 A question about Poisson process?( Merged process) Jun 16 '16
2 A question about the conditional PDF? Apr 22 '16
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