In this paper, we study frames for operators (K-frames) in finite dimensional

Hilbert spaces and express the dual of K-frames. Some properties of K-dual frames are

investigated. Furthermore, the notion of their oblique K-dual and some...

In this paper, we study frames for operators (K-frames) in finite dimentional Hilbert spaces and express

the dual of K-frames. Some properties of K-dual frames are investigated. Furthermore, the notion of their

oblique K-duals and some...

In this paper, we propose to define an atomic system induced

by a unitary representation $\\pi$ of a locally compact Hausdorff topological

group on a Hilbert space. As a consequence, we give a K-frame ...