• Amorphic Complexity of Group Actions with Applications to Quasicrystals 

      [OWP-2021-03] Fuhrmann, Gabriel; Gröger, Maik; Jäger, Tobias; Kwietniak, Dominik (Mathematisches Forschungsinstitut Oberwolfach, 2021-02-02)
      In this article, we define amorphic complexity for actions of locally compact $\sigma$-compact amenable groups on compact metric spaces. Amorphic complexity, originally introduced for $\mathbb Z$-actions, is a topological ...