Four dimensional logarithmic transformation into ℒ_u

Abstract

. Let t = ( t m ) and t = ( t n ) be two null sequences in the interval ( 0 , 1 ) and de fi ne the four dimensional logarithmic matrix L t , t = ( by The matrix L determines a sequence -to-sequence variant of classicial logarithmic summabil- ity method. The aim of this paper is to study these transformations to be L u − L u summability methods.