Abstract:
Let ‖⋅‖ be some norm in R2, Γ be the unit sphere induced in R2 by this norm, and {Aj} a sequence of disjoint subsets of R+ such that if ν∈Aj, then ν⋅Γ∩ZN≠∅. For series of the form
∞∑j=1∑‖n‖∈Ajcne2πi(n1x1+n2x2)
analogs of the Luzin–Danzhu and Cantor–Lebesgue theorems are established.
Citation:
V. S. Panferov, “Analogs of the Luzin–Danzhua and Cantor–Lebesgue theorems for double trigonometric series”, Mat. Zametki, 18:5 (1975), 659–674; Math. Notes, 18:5 (1975), 983–992