{"id":"https://openalex.org/W1975977228","doi":"https://doi.org/10.1016/0304-3975(94)00041-g","title":"Equational properties of Kleene algebras of relations with conversion","display_name":"Equational properties of Kleene algebras of relations with conversion","publication_year":1995,"publication_date":"1995-01-01","ids":{"openalex":"https://openalex.org/W1975977228","doi":"https://doi.org/10.1016/0304-3975(94)00041-g","mag":"1975977228"},"language":"en","primary_location":{"id":"doi:10.1016/0304-3975(94)00041-g","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(94)00041-g","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5017293831","display_name":"Zolt\u00e1n \u00c9sik","orcid":null},"institutions":[{"id":"https://openalex.org/I4210111519","display_name":"E\u00f6tv\u00f6s J\u00f3zsef F\u0151iskola","ror":"https://ror.org/01v8tze95","country_code":"HU","type":"education","lineage":["https://openalex.org/I4210111519"]}],"countries":["HU"],"is_corresponding":true,"raw_author_name":"Z. \u00c9sik","raw_affiliation_strings":["Computer Science Department, A. J\u00f3zsef University, Szeged, Aradi v. tere 1, 6720 Hungary","Jo\u00b4zsef Univ., Szeged, Hungary#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Science Department, A. J\u00f3zsef University, Szeged, Aradi v. tere 1, 6720 Hungary","institution_ids":["https://openalex.org/I4210111519"]},{"raw_affiliation_string":"Jo\u00b4zsef Univ., Szeged, Hungary#TAB#","institution_ids":["https://openalex.org/I4210111519"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035172275","display_name":"L. Bern\u00e1tsky","orcid":"https://orcid.org/0000-0003-0692-5736"},"institutions":[{"id":"https://openalex.org/I7597260","display_name":"Hungarian Academy of Sciences","ror":"https://ror.org/02ks8qq67","country_code":"HU","type":"government","lineage":["https://openalex.org/I7597260"]}],"countries":["HU"],"is_corresponding":false,"raw_author_name":"L. Bern\u00e1tsky","raw_affiliation_strings":["Research Group on Automata Theory, Hungarian Academy of Sciences, Szeged, Aradi v. tere 1, 6720 Hungary","Hungarian Academy of Sciences Szeged, Hungary"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Group on Automata Theory, Hungarian Academy of Sciences, Szeged, Aradi v. tere 1, 6720 Hungary","institution_ids":["https://openalex.org/I7597260"]},{"raw_affiliation_string":"Hungarian Academy of Sciences Szeged, Hungary","institution_ids":["https://openalex.org/I7597260"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5017293831"],"corresponding_institution_ids":["https://openalex.org/I4210111519"],"apc_list":{"value":2600,"currency":"USD","value_usd":2600},"apc_paid":null,"fwci":2.1122,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.85260992,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"137","issue":"2","first_page":"237","last_page":"251"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11727","display_name":"Advanced Algebra and Logic","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11727","display_name":"Advanced Algebra and Logic","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9940000176429749,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/binary-relation","display_name":"Binary relation","score":0.9143737554550171},{"id":"https://openalex.org/keywords/transitive-closure","display_name":"Transitive closure","score":0.760584831237793},{"id":"https://openalex.org/keywords/axiom","display_name":"Axiom","score":0.7588379383087158},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7137385606765747},{"id":"https://openalex.org/keywords/equational-logic","display_name":"Equational logic","score":0.7012561559677124},{"id":"https://openalex.org/keywords/transitive-relation","display_name":"Transitive relation","score":0.6917092800140381},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.6795154213905334},{"id":"https://openalex.org/keywords/preorder","display_name":"Preorder","score":0.6635690927505493},{"id":"https://openalex.org/keywords/relation","display_name":"Relation (database)","score":0.6455878615379333},{"id":"https://openalex.org/keywords/closure","display_name":"Closure (psychology)","score":0.6207785606384277},{"id":"https://openalex.org/keywords/kleene-algebra","display_name":"Kleene algebra","score":0.5648677349090576},{"id":"https://openalex.org/keywords/identity","display_name":"Identity (music)","score":0.5451573133468628},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.4995579719543457},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.48984262347221375},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.4697946310043335},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.37816888093948364},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.21076202392578125},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.14840152859687805},{"id":"https://openalex.org/keywords/rewriting","display_name":"Rewriting","score":0.10042712092399597},{"id":"https://openalex.org/keywords/law","display_name":"Law","score":0.09095591306686401},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.08268186450004578}],"concepts":[{"id":"https://openalex.org/C65180967","wikidata":"https://www.wikidata.org/wiki/Q130901","display_name":"Binary relation","level":2,"score":0.9143737554550171},{"id":"https://openalex.org/C128896722","wikidata":"https://www.wikidata.org/wiki/Q1501387","display_name":"Transitive closure","level":2,"score":0.760584831237793},{"id":"https://openalex.org/C167729594","wikidata":"https://www.wikidata.org/wiki/Q17736","display_name":"Axiom","level":2,"score":0.7588379383087158},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7137385606765747},{"id":"https://openalex.org/C154564781","wikidata":"https://www.wikidata.org/wiki/Q5384236","display_name":"Equational logic","level":3,"score":0.7012561559677124},{"id":"https://openalex.org/C191399111","wikidata":"https://www.wikidata.org/wiki/Q64861","display_name":"Transitive relation","level":2,"score":0.6917092800140381},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.6795154213905334},{"id":"https://openalex.org/C2333172","wikidata":"https://www.wikidata.org/wiki/Q1425985","display_name":"Preorder","level":2,"score":0.6635690927505493},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.6455878615379333},{"id":"https://openalex.org/C146834321","wikidata":"https://www.wikidata.org/wiki/Q2979672","display_name":"Closure (psychology)","level":2,"score":0.6207785606384277},{"id":"https://openalex.org/C206470798","wikidata":"https://www.wikidata.org/wiki/Q2634506","display_name":"Kleene algebra","level":2,"score":0.5648677349090576},{"id":"https://openalex.org/C2778355321","wikidata":"https://www.wikidata.org/wiki/Q17079427","display_name":"Identity (music)","level":2,"score":0.5451573133468628},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.4995579719543457},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.48984262347221375},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.4697946310043335},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.37816888093948364},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.21076202392578125},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.14840152859687805},{"id":"https://openalex.org/C154690210","wikidata":"https://www.wikidata.org/wiki/Q1668499","display_name":"Rewriting","level":2,"score":0.10042712092399597},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.09095591306686401},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.08268186450004578},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/0304-3975(94)00041-g","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0304-3975(94)00041-g","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Theoretical Computer Science","raw_type":"journal-article"},{"id":"pmh:oai:publicatio.bibl.u-szeged.hu:14002","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306400675","display_name":"SZTE Publicatio Repozit\u00f3rium (University of Szeged)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I227486990","host_organization_name":"University of Szeged","host_organization_lineage":["https://openalex.org/I227486990"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Cikk"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.49000000953674316,"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W31834033","https://openalex.org/W64759565","https://openalex.org/W128453691","https://openalex.org/W137476671","https://openalex.org/W1570949334","https://openalex.org/W1972464717","https://openalex.org/W1993360653","https://openalex.org/W2006006495","https://openalex.org/W2008967744","https://openalex.org/W2049894505","https://openalex.org/W2066011743","https://openalex.org/W2149366752","https://openalex.org/W2163152086","https://openalex.org/W2167954650","https://openalex.org/W2401696820","https://openalex.org/W2484059880","https://openalex.org/W2890735527","https://openalex.org/W4213350984","https://openalex.org/W6605246826","https://openalex.org/W6643173481","https://openalex.org/W6680019163","https://openalex.org/W6684043200"],"related_works":["https://openalex.org/W2111304739","https://openalex.org/W2012407715","https://openalex.org/W2362009423","https://openalex.org/W2139191522","https://openalex.org/W2394135826","https://openalex.org/W2365750584","https://openalex.org/W1997826500","https://openalex.org/W2119876047","https://openalex.org/W1975977228","https://openalex.org/W2733058695"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2016-06-24T00:00:00"}