Avoiding and Enforcing Repetitive Structures in Words 53 Zuerst scheint es

Zuerst scheint es

The Next Generation of Responsible Investment explores this topic in an edited volume intended for those with an interest in finance and business

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Ökonomische Analyse des Ratings23

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Avoiding and Enforcing Repetitive Structures in Words 53 Zuerst scheint esAvoiding and enforcing repetitions in words are central topics in the area of combinatorics on words, with first results going back to the beginning of the 20th century. The results presented in this thesis extend and enrich the existing theory concerning the presence and absence of repetitive structures in words. In the first part the question whether such structures necessarily appear in infinite words over a finite alphabet is investigated. In