\title{On the complementation of B{\"u}chi asynchronous cellular automata} \author{Anca Muscholl} \institute{Universit\"at Stuttgart\\ Institut f\"ur Informatik\\ Breitwiesenstr.~20-22\\ D-70565 Stuttgart} \begin{abstract} We present direct subset automata constructions for asynchronous (asynchronous cellular, resp.) automata. This provides a solution to the problem of direct determinization for automata with distributed control for languages of finite traces. We use the subset automaton construction and apply Klarlund's progress measure technique in order to complement non-deterministic asynchronous cellular B{\"u}chi automata for infinite traces. Both constructions yield a super-exponential blow-up in the size of local states sets. \end{abstract}