摘要
设1<p≤2,0<q≤2,δ>(n-1)/p-(n/2),f∈Lp(Ωn),σNδ(f)(x)表示,f(x)在n-球面Ωn上的Cesaro平均.本文证明了 其中非负权系数ak满足 (A是绝对常数),这个结果加强了现有的结论.
Let 1<p≤2,0<q≤2,δ>-1)/p-(n/2),f(x)∈Lp(Ω), and let σNδ(f)(x) de-
note Cesaro means of f(x) on n-sphere. It is proved that
where the weight coefficients ak satisfy ak2≥0 and
( A is an absolute con-
stant).
关键词
球调和
CESÀRO算子
权系数
强性求和
spherical harmonic
Cesdro operator
weight coefficient
strong summability with weights.