Katsnelson, V.; Machluf, R.
(Журнал математической физики, анализа, геометрии, 2012)
Let F be the one dimensional Fourier-Plancherel operator and E be a subset of the real axis. The truncated Fourier operator is the operator FE of the form FE = PEFPE, where (PEx)(t) = 1IE(t)x(t), and 1IE(t) is the indicator ...