CONVERGENCE OF SERIES ALONG THE SETS FROM IDEALS

摘要

In the year 1986 R. Estrada and R., P. Kanwal published a sufficicnt condition for convergence of series with positive terms, where they used the notion of zero asymptotic density of set. In this paper we generalize their result by using the notion of admissible ideal for the sets of indexes. We give some examples of ideals for which the analogy of above result holds and for which no.