A characterization of the arithmetical hierarchy by language equations

Alexander Okhotin. A characterization of the arithmetical hierarchy by language equations. In Lucian Ilie, Detlef Wotschke, editors, 6th International Workshop on Descriptional Complexity of Formal Systems - DCFS 2004, London, Ontario, Canada, July 26 - 28, 2004. Pre-proceedings. Volume Report No. 619 of pages 225-237, Department of Computer Science, The University of Western Ontario, Canada, 2004.

Abstract

Abstract is missing.