内容简介
In addition to the correction of typographical errors, the text has been materially changed in three places. The derivation of Stirling's formula in Chapter 2.4, now follows the method of Stieltjes in a more systematic way. The proof of Picard's little theorem in Chapter 10, 2, is carried out following an idea of H. Konig. Finally, in Chapter 11, 4, an inaccuracy has been corrected in the proof of Szego's theorem.