1. Presented to the Amer. Math. Soc. Oct. 29, 1932.
2. Walsh, Math. Annalen 96 (1920), S. 430–436.
3. To be sure, this function has artificial singularities at z = α1, α2, …, x, but we consider the function defined so that these artificial singularities are removed. Similarly below.
4. Faber, Crelle’s Journal 150 (1920), S. 79–108; S. 105. Walsh, Trans. Amer Math. Soc. 32 (1930), S. 335–390: § 6.
5. Walah, Münchner Berichte 1926, S. 223–229.