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Let
be a series for which the Abelian generator,
converges whenever s > 0. Then the same is true of the Lambertian generator,
[1]Hardy, G. H. and Littlewood, J. E., “On a Tauberian theorem for Lambert's series, and some fundamental theorems in the analytic theory of numbers,” Proc. London Math. Soc. (2), 19 (1921), 21–29.Google Scholar
[2]
[2]Whittaker, J. M., “The absolute summability of Fourier series,” Proc. Edinburgh Math. Soc. (2), 2 (1930–1931), 1–5.Google Scholar
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[3]Wintner, A., “The sum formula of Euler-Maclaurin and the inversions of Fourier and Möbius,” American Journal of Mathematics, 69 (1947), 685–708.Google Scholar