An application of the supremum cosine angle between multiplication invariant spaces in L 2 (X; H)
In this article, we study the supremum cosine angle between two multiplication invariant (MI)
spaces and its connection with the closedness of the sum of those spaces. The results …
spaces and its connection with the closedness of the sum of those spaces. The results …
Reproducing formulas associated to translation generated systems on Nilpotent Lie Groups
Let $ G $ be a connected, simply connected, nilpotent Lie group whose irreducible unitary
representations are square-integrable modulo the center. We obtain characterization results …
representations are square-integrable modulo the center. We obtain characterization results …