Published online by Cambridge University Press: 20 January 2009
Absolute summability according to Cesàro's method has been defined by Fekete for positive integral orders, as follows:—
Denoting the rth partial sum of a series Σun by and its rth mean, namely2, by we can regard as the sum of the series
.
page 173 note 1 Math, ès Term. Ert. (1911), pp. 719–726.Google Scholar
page 173 note 2
page 175 note 1 If i or j is zero, we omit the corresponding sum.
page 176 note 1 an–1, n vanishes, if we take . This follows, if we suppose true for n = 0.
page 177 note 1 It should be observed that Σ1 and Σ2 do not occur when k = 0.