The Schur-Horn theorem for operators and frames with prescribed norms and frame operator

J. Antezana, P. Massey, M. Ruiz +1

Let $\mathcal{H}$ be a Hilbert space. Given a bounded positive definite operator $S$ on $\mathcal{H}$, and a bounded sequence $\mathbf{c}=\{c_k{\}}_{k\in \mathbb{N}}$ of non negativ…