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math.FA2025
Frames for compactly supported functions with irrational density
Yurii Belov, Aleksei Kulikov
We find sufficient conditions on a compactly supported function , $\supp g = [a,b]$ which guarantee that the Gabor system $$\mathcal{G}(g;α,β)=\{e^{2πi βm x}g(x-αn)\}_{m,n\in\ma…
math.FA2025
Shift-invariant sampling in two-sided small Fock spaces
Yurii Belov, Mikhail Mironov
We consider the sampling problem for two-sided small Fock spaces , for the full range . We establish a geometric description of shift-invariant s…
math.FA2025
Gabor frames for functions supported on a semi-axis
Yurii Belov, Aleksei Kulikov
Let be a strictly decreasing continuous function supported on such that for all we have for some . We pro…