15 citations · 68 across the 21 of their papers we have counts for
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Weighted frames, weighted lower semi frames and unconditionally convergent multipliers
Peter Balazs, Rosario Corso, Diana Stoeva
In this paper we ask when it is possible to transform a given sequence into a frame or a lower semi frame by multiplying the elements by numbers. In other words, we ask when a give…
Estimate of the spectral radii of Bessel multipliers and consequences
Rosario Corso
Bessel multipliers are operators defined from two Bessel sequences of elements of a Hilbert space and a complex sequence, and have frame multipliers as particular cases. In this pa…
Some perturbation results for quasi-bases and other sequences of vectors
Fabio Bagarello, Rosario Corso
We discuss some perturbation results concerning certain pairs of sequences of vectors in a Hilbert space $\Hil$ and producing new sequences which share, with the original ones, { r…
Non-existence of patterns for a class of weighted degenerate operators
Giulio Ciraolo, Rosario Corso, Alberto Roncoroni
A classical result by Casten-Holland and Matano asserts that constants are the only positive and stable solutions to semilinear elliptic PDEs subject to homogeneous Neumann boundar…