Some results on resolutions of the identity in Hilbert spaces

نویسندگان

1 Department of Mathematics, University of Qom, Qom, Iran

doi
10.22091/maa.2023.9766.1010
چکیده

In this paper, some new results on resolutions of the identity, atomic systems and frame-like systems for subspaces of a Hilbert space are obtained. In particular, their sums and their stability under the action of invertible operators are considered