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A Tauberian theorem for Borel summability

Published online by Cambridge University Press:  24 October 2008

B. Kuttner
Affiliation:
University of Birmingham, Birmingham B15 2TT
M. R. Parameswaran
Affiliation:
University of Manitoba, Winnipeg, Manitoba, CanadaR3T 2N2

Extract

1. We use Eα to denote the Euler transformation obtained as the special case of the Hausdorff transformation (H, μn) in which μn = αn (see [5], §§64, 72; in the notation of Hardy's book [1], our Eα is (E, q) with q = (1 − α)/α). Eα is regular if and only if 0 < α < 1, and in this range Eα increases in strength as α decreases since EαEβ = Eαβ. Also, E1 = I, the identity transformation.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1987

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References

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