An application of quasi-monotone sequences to absolute matrix summability

Absolute matrix summability methods

a generalized summability factor theorem for absolute summability and quasi   power increasing sequences

the object of this paper is to establish a summability factor theorem for summabilitya, , k  1 k  where a is the lower triangular matrix with non-negative entries satisfying certain conditions.

a summability factor theorem for absolute summability involving quasi power increasing sequences

we obtain sufficient conditions for the series σanλn to be absolutely summable of order k by atriangular matrix.

An application of quasi-monotone and almost increasing sequences

On absolute matrix summability methods