**5**

votes

**0**answers

511 views

### How would you cite a result that it is not quite correct, but whose proof contains some useful ideas

There is a paper that was published 15 years ago; one of the theorems in it is wrong in general. A few years ago some people told the author that this theorem is wrong as stated, but yet a partial ...

**0**

votes

**0**answers

38 views

### Is that possible to use stieltjes transform for multiple matrices

I have the matrix calculation with expression
\begin{equation}
\frac{1}{M}tr(\mathbf{WHH}^H\mathbf{W}^H + \mathbf{R}_{nn})^{-1}
\end{equation}
whereas $\mathbf{H} \in \mathbb{C}^{M\times K}$, $\mathbf{...