Perturbation estimation for the parallel sum of Hermitian positive semi-definite matrices

Wei Luo, Chuanning Song, Qingxiang Xu

Let ${\mathbb{C}}^{n\times n}$ be the set of all $n\times n$ complex matrices. For any Hermitian positive semi-definite matrices $A$ and $B$ in ${\mathbb{C}}^{n\times n}$, their new c…