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A Note on Index Summability of an Infinite Series

U. K. Misra, Mahendra Misra, M. K. Muduli

Abstract


In 1985, H. Bor established sufficient condition for the indexed Riesz summability of an infinite series when it is indexed Cesàro summable of order one. Subsequently it is developed by different authors by taking indexed Riesz and indexed NÖrlund summability.
However in this paper we have tried to establish the sufficient conditions for a special type of Y -indexed NÖrlund summability of an infinite series when it is X -indexed Riesz summable.

Keywords


Y-indexed Riesz Summability, Y -indexed NÖrlund summability.

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