Arnold Walfisz

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Arnold Walfisz (2 July 1892, Warsaw, Congress Poland, Russian Empire – 29 May 1962, Tbilisi, Georgia) was a Polish mathematician.

By using a theorem by Carl Ludwig Siegel providing an upper bound for the real zeros (See Siegel zero) of Dirichlet L-functions formed with real non-principal characters, Walfisz obtained the Siegel-Walfisz theorem, from which the prime number theorem for arithmetic progressions can be deduced.

In 1935 he founded, together with Salomon Lubelski, the journal Acta Arithmetica, which publishes papers on number theory.

[edit] Works

• Weylsche Exponentialsummen in der neueren Zahlentheorie, VEB Deutscher Verlag der Wissenschaften, Berlin, 1963