bio | website | |
---|---|---|
location | Xianyang | |
age | 27 | |
visits | member for | 4 years, 2 months |
seen | Dec 17 '11 at 15:24 | |
stats | profile views | 1,410 |
To learn and to share. Email:
miwalin.math@gmail.com
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Dec 17 |
accepted | How to prove a known inequality from a book |
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Sep 2 |
comment |
Explanation of a proof of an determinant bound?
Btw, did you read that article by Yang 1990? |
Sep 2 |
comment |
Explanation of a proof of an determinant bound?
It is not clear how you get \begin{eqnarray*} (x_2^TAx_2)(x_2^TA^{-1}x_2) &\le& \frac{(\lambda_2 + \lambda_{n-1})^2}{4\lambda_2\lambda_{n-1}}. \end{eqnarray*} |
Aug 31 |
asked | Explanation of a proof of an determinant bound? |
Aug 8 |
comment |
Eigenspace of Euclidean distance matrix.
+1, Thanks, I know this fact. Do you think if it is possible to characterize the orthogonal matrix $P$ such that $P^TMP$ is diagonal? |
Aug 8 |
asked | Eigenspace of Euclidean distance matrix. |
Aug 8 |
comment |
What's known about the 3rd coefficient in the BMV conjecture?
A year later, you did not forget to update this. ... Thanks, I will read it. |
Aug 1 |
comment |
Arithmetic-geometric mean of positive matrices
@Wadim: Are you sure with your calculation? $A\natural B$ must be Hermitian provided it is defined (i.e., $A,B$ are psd). |