meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 2 years |
| seen | Oct 16 '12 at 12:42 | |
| stats | profile views | 379 |
|
Apr 19 |
comment |
An algebra of nilpotent linear transformations is triangularizable @Manos: Yes, it is. |
|
Apr 19 |
asked | An algebra of nilpotent linear transformations is triangularizable |
|
Apr 12 |
comment |
Prove inequality with norms and matrices It is homework, so I cannot tell more. My answer does not deserve one vote up? |
|
Apr 11 |
revised |
Prove inequality with norms and matrices added 203 characters in body |
|
Apr 11 |
answered | Prove inequality with norms and matrices |
|
Apr 11 |
comment |
Pseudo inner product question Yeah, your inner product is really curious, I found this somewhat related article on standard inner product and angles springerlink.com/content/472w17185p0771w0 |
|
Apr 10 |
comment |
Proof of Pinsker's inequality. I find a simpler one from Borwein\& Levis, 2005, page 63. |
|
Apr 10 |
accepted | Proof of Pinsker's inequality. |
|
Apr 9 |
comment |
Indefinite Integral for $\cos x/(1+x^2)$ I guess there is no explicit formula for the indefinite integral. I know and estimate $$ \int_{0}^{\pi/2}\frac{\cos x}{1+x^2}\;dx\ge \int_{0}^{\pi/2}\frac{\sin x}{1+x^2}\;dx $$ |
|
Apr 5 |
comment |
If $A\ge0$ and $B\le 0$, are the eigenvalues of $AB$ non-positive? See e.g., page 57 of Fuzhen Zhang, Matrix Theory: Basic Results and Techniques Second Edition |
|
Apr 4 |
comment |
Proof of Pinsker's inequality. Is there a simpler proof? |
|
Apr 4 |
comment |
If $A\ge0$ and $B\le 0$, are the eigenvalues of $AB$ non-positive? For any square matrices $XY$, its spectrum coincides with that of $YX$. You may first assume $X$ is invertible, otherwise use an $\epsilon$ argument. |
|
Apr 4 |
answered | If $A\ge0$ and $B\le 0$, are the eigenvalues of $AB$ non-positive? |
|
Apr 4 |
asked | Proof of Pinsker's inequality. |
|
Apr 3 |
comment |
number of invertible 0-1 matrices Sorry all... so the conclusion is that my guess in the question is wrong and there is no known formula. |
|
Apr 3 |
comment |
number of invertible 0-1 matrices It definitely helps. |
|
Apr 3 |
comment |
number of invertible 0-1 matrices the matrices considered are with entries from real field. |
|
Apr 3 |
revised |
number of invertible 0-1 matrices added 4 characters in body |
|
Apr 3 |
asked | number of invertible 0-1 matrices |
|
Apr 1 |
comment |
Different approaches to evaluate this determinant Thanks, bgins's solution works also for general lambda matrices....I am looking for other approaches. |
