{"id":"https://openalex.org/W2018304344","doi":"https://doi.org/10.1007/bf00370681","title":"The origin of relation algebras in the development and axiomatization of the calculus of relations","display_name":"The origin of relation algebras in the development and axiomatization of the calculus of relations","publication_year":1991,"publication_date":"1991-01-01","ids":{"openalex":"https://openalex.org/W2018304344","doi":"https://doi.org/10.1007/bf00370681","mag":"2018304344"},"language":"en","primary_location":{"id":"doi:10.1007/bf00370681","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00370681","pdf_url":null,"source":{"id":"https://openalex.org/S30880287","display_name":"Studia Logica","issn_l":"0039-3215","issn":["0039-3215","1572-8730"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Studia Logica","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/A5051809424","display_name":"Roger D. Maddux","orcid":"https://orcid.org/0000-0003-3810-2048"},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Roger D. Maddux","raw_affiliation_strings":["Department of Mathematics, Iowa State University, 50011, Ames, Iowa","Department of Mathematics, Iowa State University, Ames, Iowa#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Iowa State University, 50011, Ames, Iowa","institution_ids":["https://openalex.org/I173911158"]},{"raw_affiliation_string":"Department of Mathematics, Iowa State University, Ames, Iowa#TAB#","institution_ids":["https://openalex.org/I173911158"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5051809424"],"corresponding_institution_ids":["https://openalex.org/I173911158"],"apc_list":{"value":2990,"currency":"USD","value_usd":2990},"apc_paid":null,"fwci":3.8812,"has_fulltext":false,"cited_by_count":131,"citation_normalized_percentile":{"value":0.93465963,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"50","issue":"3-4","first_page":"421","last_page":"455"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9886000156402588,"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"}},"topics":[{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9886000156402588,"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"}},{"id":"https://openalex.org/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9726999998092651,"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"}},{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9103000164031982,"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/relation","display_name":"Relation (database)","score":0.8218443393707275},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6061296463012695},{"id":"https://openalex.org/keywords/calculus","display_name":"Calculus (dental)","score":0.5995675325393677},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.46063268184661865},{"id":"https://openalex.org/keywords/development","display_name":"Development (topology)","score":0.454972505569458},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.25994598865509033},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.19320327043533325}],"concepts":[{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.8218443393707275},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6061296463012695},{"id":"https://openalex.org/C2777686260","wikidata":"https://www.wikidata.org/wiki/Q144037","display_name":"Calculus (dental)","level":2,"score":0.5995675325393677},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.46063268184661865},{"id":"https://openalex.org/C2776542497","wikidata":"https://www.wikidata.org/wiki/Q5266672","display_name":"Development (topology)","level":2,"score":0.454972505569458},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.25994598865509033},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.19320327043533325},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"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/C199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1007/bf00370681","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00370681","pdf_url":null,"source":{"id":"https://openalex.org/S30880287","display_name":"Studia Logica","issn_l":"0039-3215","issn":["0039-3215","1572-8730"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Studia Logica","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.146.5668","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.146.5668","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.math.iastate.edu/maddux/papers/Maddux1991.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.15.6316","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.15.6316","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.math.iastate.edu/maddux/papers/origin2.ps","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","score":0.41999998688697815,"display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":52,"referenced_works":["https://openalex.org/W60562777","https://openalex.org/W114225339","https://openalex.org/W190595227","https://openalex.org/W432472302","https://openalex.org/W614839917","https://openalex.org/W898052787","https://openalex.org/W1541413499","https://openalex.org/W1607953571","https://openalex.org/W1784765900","https://openalex.org/W1971528987","https://openalex.org/W1975847612","https://openalex.org/W1976520413","https://openalex.org/W1985846120","https://openalex.org/W1992205482","https://openalex.org/W1997776872","https://openalex.org/W2000716540","https://openalex.org/W2006006495","https://openalex.org/W2018944629","https://openalex.org/W2032535608","https://openalex.org/W2033274602","https://openalex.org/W2037264117","https://openalex.org/W2041833446","https://openalex.org/W2053350687","https://openalex.org/W2056017060","https://openalex.org/W2060665095","https://openalex.org/W2076862903","https://openalex.org/W2083908314","https://openalex.org/W2115000351","https://openalex.org/W2315064349","https://openalex.org/W2315217431","https://openalex.org/W2316726503","https://openalex.org/W2320479210","https://openalex.org/W2320524668","https://openalex.org/W2325835442","https://openalex.org/W2335696481","https://openalex.org/W2490151183","https://openalex.org/W2801752629","https://openalex.org/W2971268466","https://openalex.org/W3003647029","https://openalex.org/W3145287507","https://openalex.org/W4206357041","https://openalex.org/W4235298171","https://openalex.org/W4238719637","https://openalex.org/W4239258336","https://openalex.org/W4247678871","https://openalex.org/W4252318916","https://openalex.org/W4285719527","https://openalex.org/W4388967858","https://openalex.org/W6601124404","https://openalex.org/W6703174651","https://openalex.org/W6805056116","https://openalex.org/W6835016538"],"related_works":["https://openalex.org/W1979597421","https://openalex.org/W2007980826","https://openalex.org/W4245490552","https://openalex.org/W2061531152","https://openalex.org/W3002753104","https://openalex.org/W2077600819","https://openalex.org/W2042127053","https://openalex.org/W2142036596","https://openalex.org/W2072657027","https://openalex.org/W2600246793"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":8},{"year":2012,"cited_by_count":9}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}
