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May 8, 2013 at 17:05 history edited Ramin CC BY-SA 3.0
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Mar 15, 2011 at 17:21 comment added Franz Lemmermeyer The functional equation for Dirichlet's L-series for the quadratic character modulo 4 was discovered by Euler; before Landau made his work known, more general cases were covered by Malmsten et al. Precise references can be found in Landau's "Euler und die Funktionalgleichung der Riemannschen Zetafunktion", Bibl. Math. (3) 7 (1906), 69--79 as well as in Narkiewicz's book on the prime number theorem.
Mar 15, 2011 at 15:18 comment added Stopple The divergence of the harmonic series was proven by Nicole Oresme in Questiones super geometriam Euclidis, around 1350. See plato.stanford.edu/entries/nicole-oresme
Mar 15, 2011 at 14:39 history answered Ramin CC BY-SA 2.5