Can someone recommend a good textbook on functions of one complex variable which have good chapters on geometric theory, in English?
When I studied complex analysis, I used two textbooks:
An excellent texbook by A. Hurwitz (with collaboration of R. Courant), "Vorlesungen über allgemeine funktionentheorie und elliptische funktionen", ("Lectures on general theory of functions and elliptic functions"), in German, and
An excellent [though smaller] textbook by B. Shabat, "Introduction to complex analysis, vol. 1", in Russian, (Б.В. Шабат, "Введение в комплексный анализ").
Both books were never translated into English, besides a few chapters from the 2nd book, which were translated by Lenya Ryzhik.
For example, here are some topic in the geometric theory in a book by Hurwitz (and Courant):
- Riemann sphere; its automorphisms;
- conformal mappings;
- geometry of the maps $z^n$, $1/z$, $\exp(z)$ and $\log(z)$,
- algebraic functions given by $w^n = G(z)$, where $G(z)$ is a polynomial;
- Riemann surfaces of algebraic functions; examples thereof; Riemann-Hurwitz formula;
- analytic continuation;
- Schwarz' symmetry principle,
- Weierstrass' funcion $\wp(z,\tau)$ and the embedding of the complex torus $\mathbb{C}/L$ as a cubic curve into $\mathbb{P}^2$;
- the modular function $j(\tau)$.
What are the good English textbooks? Is there one textbook covering this, like one by Hurwitz?
Thank you