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On Infinitary Rational Relations and Borel Sets

Authors :
Olivier Finkel
Équipe de Logique Mathématique (ELM)
Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Cristian Calude
Michael J. Dinneen
and Vincent Vajnovszki
Source :
Proceedings of the International Conference DMTCS'03, Fourth International Conference on Discrete Mathematics and Theoretical Computer Science DMTCS'03, 7-12 July 2003, Dijon, France., Fourth International Conference on Discrete Mathematics and Theoretical Computer Science DMTCS'03, 7-12 July 2003, Dijon, France., 2003, France. pp.155-167, Discrete Mathematics and Theoretical Computer Science ISBN: 9783540405054, DMTCS
Publication Year :
2010

Abstract

International audience; We prove in this paper that there exists some infinitary rational relations which are Sigma^0_3-complete Borel sets and some others which are Pi^0_3-complete. This implies that there exists some infinitary rational relations which are Delta^0_4-sets but not (Sigma^0_3U Pi^0_3)-sets. These results give additional answers to questions of Simonnet and of Lescow and Thomas.

Details

Language :
English
ISBN :
978-3-540-40505-4
ISBNs :
9783540405054
Database :
OpenAIRE
Journal :
Proceedings of the International Conference DMTCS'03, Fourth International Conference on Discrete Mathematics and Theoretical Computer Science DMTCS'03, 7-12 July 2003, Dijon, France., Fourth International Conference on Discrete Mathematics and Theoretical Computer Science DMTCS'03, 7-12 July 2003, Dijon, France., 2003, France. pp.155-167, Discrete Mathematics and Theoretical Computer Science ISBN: 9783540405054, DMTCS
Accession number :
edsair.doi.dedup.....9242f3af52d0f2d5482a8ef8eaf78878