G. Bellomonte

collaborators

2 papers

math.FA2020

Weak $A$ -frames and weak $A$ -semi-frames

Jean-Pierre Antoine, Giorgia Bellomonte, Camillo Trapani

After reviewing the interplay between frames and lower semi-frames, we introduce the notion of lower semi-frame controlled by a densely defined operator $A$ or, for short, a \emph{…

math.FA2019

Continuous frames for unbounded operators

Giorgia Bellomonte

Few years ago Găvruţa gave the notions of $K$ -frame and atomic system for a linear bounded operator $K$ in a Hilbert space $H$ in order to decompose $R (K)$ , the…

Weak A-frames and weak A-semi-frames

Continuous frames for unbounded operators

Weak $A$ -frames and weak $A$ -semi-frames