Published online by Cambridge University Press: 20 January 2009
1. It is convenient to begin with a brief statement of the notation which will be used throughout this paper.
Let k be any positive number and let
where is the coefficient of xn in the formal expansion of (1 – x )–k–1, and let
Then the series Σαn is said to be summable(C, k) if is convergent, that is, if tends to a limit, and absolutely summable (C, k), or summable |C, k|, if is absolutely convergent.
page 114 note 1 Hyslop, J. M., Proc. Edinburgh Math. Soc. (2), 5 (1938), 182–201.CrossRefGoogle Scholar
page 115 note 1 Andersen, A. F., Proc. London Math. Soc. (2), 27 (1928), 39–71.CrossRefGoogle Scholar
page 115 note 2 Kogbefclianbz, E., Bull. des Sciences Math. (2), 49 (1925), 234–256.Google Scholar
page 115 note 3 See Andersen, A. F., Studier over Cesaro's Summabilitetsmetode (Copenhagen, 1921), 42,Google Scholar and Hyslop, J. M., loc. cit., 187.Google Scholar
page 116 note 1 Here as elsewhere A is independent of the variables under consideration and hasnot necessarily the same value each time it occurs.
page 122 note 1 Hyslop, J. M., Proc. Edinburgh Math. Soc. (2), 6 (1939), 51–56.CrossRefGoogle Scholar