I am wondering whether it is possible to derive $D$ for
$diag((D+A)^{-1})=k$
where
- $diag()$ produces a vector of diagonal elements of a squared matrix,
- $D$ is an unknown diagonal matrix with possible values between zero and $\infty$, where it is known that $D$ exists,
- $A$ is a known positive definite symmetric matrix, and
- $k$ is a known vector of positive values between $>0$ and $diag(A^{-1})$
Thanks