K-trivial Closed Sets and Continuous Functions


by G. Barmpalias, P. Brodhead, D. Cenzer, J.B. Remmel and R. Weber

Summary


We investigate the notion of K-triviality for closed sets and continuous functions. Every K-trivial closed set contains a K-trivial real. There exists a K-trivial effectively closed set with no computable elements. Also, every K-trivial degree contains a K-trivial continuous function.