Damir Z. Arov and Harry Dym: A characterization of the set of de Branges matrices ${\gE}$ for which there exists a $J$-inner matrix function $U$ such that the spaces ${\cB}({\gE})$ and ${\cH}(U)$ coincide (PAFA)
Volume 8, Number 3, 809-816, 2023
A characterization of the set of de Branges matrices for which there exists a J-inner matrix function U such that the spaces and coincide
Damir Z. Arov and Harry Dym