Abstract:
It is proved that if a multiple series in the Franklin system converges in the sense of Pringsheim
everywhere, except, perhaps, on a set that is a Cartesian product of sets of measure zero,
to an everywhere finite integrable function,
then it is the Fourier–Franklin series of this function.
A uniqueness theorem is also proved for multiple Franklin series whose
rectangular partial sums at each point have a sequential limit.
Keywords:
Franklin system, multiple series, uniqueness theorem.
Citation:
G. G. Gevorkyan, L. A. Akopyan, “Uniqueness Theorems for Multiple Franklin Series Converging over Rectangles”, Mat. Zametki, 109:2 (2021), 206–218; Math. Notes, 109:2 (2021), 208–217