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math.FA2026
Perturbed Exponential Systems, Pattern-Dependent Shifted-Sinc Operators, and Matrix Symbols on Finite Unions of Intervals
Pierluigi Vellucci, Gohin Shaikh Samad
We study perturbed exponential systems and unions of shifted frequency lattices through shifted-sinc operators and finite-dimensional fiberizations. For the auxiliary binary local-…
math.FA2015★ 10 cited
One-parameter groups of operators and discrete Hilbert transforms
Laura De Carli, Gohin Shaikh Samad
We show that the discrete Hilbert transform and the discrete Kak-Hilbert transform are infinitesimal generator of one-parameter groups of operators