Professor
I am Raghad Shamsah, researcher in harmonic analysis and some related fields (wavelets, Fourier series). Now I am working on some results related with youra paper of Elias Stein (on the almost every where convergence of wavelet summation methods)., and I stopped withhave the following questions.:
- The maximal function operator of $f$ in the Elias Stein paper (1976) is bounded on $L^p({\mathbb R}^ n)$, whenever $p > n/(n - 1)$, and $n \ge 3$. Does it stay bounded when we define the maximal function on the new space $L^2(S^2)$?
and
- How can I define the maximal function operator when the function is in $L^2(S^2)$?
I hope that you can answer on my questions.
thanks
Raghad Shamsah MATHEMATICAL DEPARTMENT/INSPEM/ UNIVERSITY PUTRA MALAYSIA