{"id":"https://openalex.org/W2068760380","doi":"https://doi.org/10.1016/s0195-6698(80)80024-2","title":"Congruences Derived from Group Action","display_name":"Congruences Derived from Group Action","publication_year":1980,"publication_date":"1980-03-01","ids":{"openalex":"https://openalex.org/W2068760380","doi":"https://doi.org/10.1016/s0195-6698(80)80024-2","mag":"2068760380"},"language":"en","primary_location":{"id":"doi:10.1016/s0195-6698(80)80024-2","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0195-6698(80)80024-2","pdf_url":null,"source":{"id":"https://openalex.org/S204851967","display_name":"European Journal of Combinatorics","issn_l":"0195-6698","issn":["0195-6698","1095-9971"],"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":"European Journal of Combinatorics","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/A5109044612","display_name":"Gian\u2010Carlo Rota","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Gian-Carlo Rota","raw_affiliation_strings":["Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Mass. 02139, U.S.A"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Mass. 02139, U.S.A","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5070369805","display_name":"Bruce E. Sagan","orcid":"https://orcid.org/0000-0001-7700-6353"},"institutions":[{"id":"https://openalex.org/I68947357","display_name":"Universit\u00e9 de Strasbourg","ror":"https://ror.org/00pg6eq24","country_code":"FR","type":"education","lineage":["https://openalex.org/I68947357"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Bruce Sagan","raw_affiliation_strings":["D\u00e9partement de Math\u00e9matique, Universit\u00e9 de Strasbourg, 7, rue Ren\u00e9 Descartes, 67 Strasbourg, France"],"affiliations":[{"raw_affiliation_string":"D\u00e9partement de Math\u00e9matique, Universit\u00e9 de Strasbourg, 7, rue Ren\u00e9 Descartes, 67 Strasbourg, France","institution_ids":["https://openalex.org/I68947357"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5109044612"],"corresponding_institution_ids":[],"apc_list":{"value":2880,"currency":"USD","value_usd":2880},"apc_paid":null,"fwci":0.5692,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.67886962,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"1","issue":"1","first_page":"67","last_page":"76"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11727","display_name":"Advanced Algebra and Logic","score":0.5968000292778015,"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":0.5968000292778015,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8277149200439453},{"id":"https://openalex.org/keywords/congruence-relation","display_name":"Congruence relation","score":0.7695727348327637},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6656784415245056},{"id":"https://openalex.org/keywords/action","display_name":"Action (physics)","score":0.6281418800354004},{"id":"https://openalex.org/keywords/group","display_name":"Group (periodic table)","score":0.6160747408866882},{"id":"https://openalex.org/keywords/group-action","display_name":"Group action","score":0.4989933967590332}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8277149200439453},{"id":"https://openalex.org/C9973445","wikidata":"https://www.wikidata.org/wiki/Q8349849","display_name":"Congruence relation","level":2,"score":0.7695727348327637},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6656784415245056},{"id":"https://openalex.org/C2780791683","wikidata":"https://www.wikidata.org/wiki/Q846785","display_name":"Action (physics)","level":2,"score":0.6281418800354004},{"id":"https://openalex.org/C2781311116","wikidata":"https://www.wikidata.org/wiki/Q83306","display_name":"Group (periodic table)","level":2,"score":0.6160747408866882},{"id":"https://openalex.org/C131715654","wikidata":"https://www.wikidata.org/wiki/Q288465","display_name":"Group action","level":3,"score":0.4989933967590332},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0195-6698(80)80024-2","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0195-6698(80)80024-2","pdf_url":null,"source":{"id":"https://openalex.org/S204851967","display_name":"European Journal of Combinatorics","issn_l":"0195-6698","issn":["0195-6698","1095-9971"],"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":"European Journal of Combinatorics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W157718562","https://openalex.org/W1973410385","https://openalex.org/W2007694077","https://openalex.org/W2040661328","https://openalex.org/W2049817705","https://openalex.org/W2057111012","https://openalex.org/W2405154940","https://openalex.org/W2750581379","https://openalex.org/W4233902200","https://openalex.org/W6606388386","https://openalex.org/W6991023777"],"related_works":["https://openalex.org/W2778946875","https://openalex.org/W2023974151","https://openalex.org/W1998326529","https://openalex.org/W2499030906","https://openalex.org/W2509238602","https://openalex.org/W2950302474","https://openalex.org/W2990203973","https://openalex.org/W2565039940","https://openalex.org/W2025849487","https://openalex.org/W2491961278"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2}],"updated_date":"2026-03-09T08:58:05.943551","created_date":"2025-10-10T00:00:00"}
