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    Shannon's Sampling Theorem for Set-Valued Functions with an Application
    (Mdpi, 2024) Yilmaz, Yilmaz; Erdogan, Bagdagul Kartal; Levent, Halise
    In this study, we defined a kind of Fourier expansion of set-valued square-integrable functions. In fact, we have seen that the classical Fourier basis also constitutes a basis for the Hilbert quasilinear space L2(-pi,pi,Omega(C)) of Omega(C)-valued square-integrable functions, where Omega(C) is the class of all compact subsets of complex numbers. Furthermore, we defined the quasi-Paley-Wiener space, QPW, using the Fourier transform defined for set-valued functions and thus we showed that the sequence sinc.-kk is an element of Z form also a basis for QPW. We call this result Shannon's sampling theorem for set-valued functions. Finally, we gave an application based on this theorem.