eprintid: 325 rev_number: 11 eprint_status: archive userid: 32 dir: disk0/00/00/03/25 datestamp: 2011-06-06 09:41:26 lastmod: 2011-07-11 14:36:26 status_changed: 2011-06-06 09:41:26 type: article metadata_visibility: show item_issues_count: 0 creators_name: Corradini, Flavio creators_name: De Nicola, Rocco creators_name: Labella, Anna creators_id: creators_id: r.denicola@imtlucca.it creators_id: title: An Equational Axiomatization of Bisimulation over Regular Expressions ispublished: pub subjects: QA75 divisions: CSA full_text_status: none keywords: Bisimulation; concurency; equational axiomatization; nondeterminism; process algebras; regular expressions abstract: We provide a finite equational axiomatization for bisimulation equivalence of nondeterministic interpretation of regular expressions. Our axiomatization is heavily based on the one by Salomaa, that provided an implicative axiomatization for a large subset of regular expressions, namely all those that satisfy the non‐empty word property (i.e. without 1 summands at the top level) in *‐contexts. Our restriction is similar, it essentially amounts to recursively requiring that the non‐empty word property be satisfied not just at top level but at any depth. We also discuss the impact on the axiomatization of different interpretations of the 0 term, interpreted either as a null process or as a deadlock. date: 2002 date_type: published publication: Journal of Logic and Computation volume: 12 number: 2 publisher: Oxford University Press pagerange: 301-320 id_number: 10.1093/logcom/12.2.301 refereed: TRUE issn: 0955-792X official_url: http://dx.doi.org/10.1093/logcom/12.2.301 citation: Corradini, Flavio and De Nicola, Rocco and Labella, Anna An Equational Axiomatization of Bisimulation over Regular Expressions. Journal of Logic and Computation, 12 (2). pp. 301-320. ISSN 0955-792X (2002)