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Seit dem Ende des 20. Jahrhunderts macht der europaische Integrationsprozess unter den Bedingungen der globalen Informations- und Kommunikationsgesellschaft rasche Fortschritte, die nationalstaatlichen Grenzen werden durchlassiger, bei den Menschen wachst die Bereitschaft und der Wille zur Transnationalitat. Freilich, das Vermogen dazu halt mit dem Wollen nicht Schritt. Zu gering ist das Wissen um die Anderen und zu stereotyp sind noch die Vorstellungen voneinander, als dass sich die Angehorigen verschiedener Nationen in voraussetzungsloser Akzeptanz begegnen konnten. Stereotype verstellen...

In the 1920s the German Reichswehr adopts the cipher machine Enigma to secure military radio communication. During the Third Reich, Enigma machines are put into operation in numerous Wehrmacht units. Poland, which is imminently threatened by the German rearmament, begins efforts to break the Enigma-encoded messages. Marian Rejewski, a young mathematician employed by the Polish Army's General Staff, finally succeeds in reconstructing the machine, breaking its codes and decrypting its ciphers.

This CD recapitulates this remarkable episode, when a brilliant 27-year-old...

This volume is a natural continuation of the book Algebraic Renormalization, Perturbative Renormalization, Symmetries and Anomalies, by O Piguet and S P Sorella, with the aim of applying the algebraic renormalization procedure to gauge field models quantized in nonstandard gauges. The main ingredient of the algebraic renormalization program is the quantum action principle, which allows one to control in a unique manner the breaking of a symmetry induced by a noninvariant subtraction scheme. In particular, the volume studies in-depth the following quantized gauge field models: QED, Yang-Mills...