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math.FA2026
Signed representing measures (Berger-type charges) in subnormality and related properties of weighted shifts
Chafiq Benhida, Raúl E. Curto, George R. Exner
In the study of the geometrically regular weighted shifts (GRWS) -- see [5] -- signed power representing measures (which we call Berger-type charges) played an important role. Moti…
math.FA2026★ 1 cited
Geometrically regular weighted shifts
Chafiq Benhida, Raul E. Curto, George R. Exner
We study a general class of weighted shifts whose weights are given by , where and and are parameters so that $(N,D) \in…