The aim of the presentation is to present a simple proof for Landau's necessary density conditions for sampling and interpolation in Paley-Wiener spaces.
Reference:
Landau, H., Necessary density conditions for sampling and interpolation of certain entire functions. Acta Math. 117, 37-52 (1967).
Nitzan, S., Olevskii, A., Revisiting Landau's density theorems for Paley Wiener spaces. C.R., Math., Acad. Sci. Paris 350, No. 9-10, 509-512 (2012).