Summation by Riesz means of the Fourier-Laplace series


Ahmad Fadly Nurullah bin Rasedee, Abdumalik Rakhimov, Anvarjon Akhmedov




In this work, we investigate conditions for summability of the Fourier-Laplace series of integrable functions by Riesz means. The kernel of Riesz means is estimated through comparison with the Cesaro means. Properties of D and D∗ points are required in obtaining this estimation