Abstract: | In this paper equivalent classes of the classes M and Spr, p > 1, > 0. r { 0,1,2, ... ,[]} defined by Shuyun [3] are obtained. Then, it is shown that the class Spr, 1 > p 2, 0, r {0,1,2,...,[]} is a subclass of BVCr, where Spr is the equivalent class of the Shuyun's class Spr, BV is the class of null sequences of bounded variation and Cr is the extension of the Garrett--Stanojevic class. As a corollary of this result, we have obtained the theorem, proved in [7]. |