This volume contains the Proceedings of the conference "Complex and Differential Geometry 2009", held at Leibniz Universitat Hannover, September 14 - 18, 2009. It was the aim of this conference to bring specialists from differential geometry and (complex) algebraic geometry together and to discuss new developments in and the interaction between these fields. Correspondingly, the articles in this book cover a wide area of topics, ranging from topics in (classical) algebraic geometry through complex geometry, including (holomorphic) symplectic and poisson geometry, to differential geometry (with an emphasis on curvature flows) and topology.

The purpose of coding theory is the design of efficient systems for the transmission of information. The mathematical treatment leads to certain finite structures: the error-correcting codes. Surprisingly problems which are interesting for the design of codes turn out to be closely related to problems studied partly earlier and independently in pure mathematics. In this book, examples of such connections are presented. The relation between lattices studied in number theory and geometry and error-correcting codes is discussed. The book provides at the same time an introduction to the theory of integral lattices and modular forms and to coding theory. In the 3rd edition, again numerous corrections and improvements have been made and the text has been updated.

Eine Einfuhrung in die Theorie der Riemannschen Flachen, die Funktionentheorie mehrerer Veranderlicher, die Differentialtopologie und die Singularitatentheorie. Es werden grundlegende Begriffe und Methoden der jeweiligen Gebiete dargestellt. Die Auswahl erfolgt im Hinblick auf Anwendungen auf die Untersuchung von isolierten Singularitaten analytischer Funktionen, die in vielfaltigen Zusammenhangen von Bedeutung ist.