{"id":"https://openalex.org/W2000335885","doi":"https://doi.org/10.1016/0012-365x(81)90218-1","title":"Algorithms for minimum covering by cliques and maximum clique in claw-free perfect graphs","display_name":"Algorithms for minimum covering by cliques and maximum clique in claw-free perfect graphs","publication_year":1981,"publication_date":"1981-01-01","ids":{"openalex":"https://openalex.org/W2000335885","doi":"https://doi.org/10.1016/0012-365x(81)90218-1","mag":"2000335885"},"language":"en","primary_location":{"id":"doi:10.1016/0012-365x(81)90218-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0012-365x(81)90218-1","pdf_url":null,"source":{"id":"https://openalex.org/S18902827","display_name":"Discrete Mathematics","issn_l":"0012-365X","issn":["0012-365X","1872-681X"],"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":"Discrete Mathematics","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/A5119558606","display_name":"Wen\u2212Lian Hsu","orcid":"https://orcid.org/0000-0001-7061-3513"},"institutions":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Wen-Lian Hsu","raw_affiliation_strings":["Department of Industrial Engineering and Management Sciences , Northwestern University , Evanston , IL , 60201 , USA"],"affiliations":[{"raw_affiliation_string":"Department of Industrial Engineering and Management Sciences , Northwestern University , Evanston , IL , 60201 , USA","institution_ids":["https://openalex.org/I111979921"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057281816","display_name":"George L. Nemhauser","orcid":null},"institutions":[{"id":"https://openalex.org/I205783295","display_name":"Cornell University","ror":"https://ror.org/05bnh6r87","country_code":"US","type":"education","lineage":["https://openalex.org/I205783295"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"George L. Nemhauser","raw_affiliation_strings":["School of Operations Research and Industrial Engineering, Cornell University, Upson Hall, Ithaca, NY 14853, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Operations Research and Industrial Engineering, Cornell University, Upson Hall, Ithaca, NY 14853, USA#TAB#","institution_ids":["https://openalex.org/I205783295"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5119558606"],"corresponding_institution_ids":["https://openalex.org/I111979921"],"apc_list":{"value":3000,"currency":"USD","value_usd":3000},"apc_paid":null,"fwci":2.8916,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.90501487,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"37","issue":"2-3","first_page":"181","last_page":"191"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9984999895095825,"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/T10374","display_name":"Advanced Graph Theory Research","score":0.9984999895095825,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9962000250816345,"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/T10829","display_name":"Interconnection Networks and Systems","score":0.991599977016449,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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":0.8883115649223328},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.7188355922698975},{"id":"https://openalex.org/keywords/claw","display_name":"Claw","score":0.6908546686172485},{"id":"https://openalex.org/keywords/clique","display_name":"Clique","score":0.6307453513145447},{"id":"https://openalex.org/keywords/clique-sum","display_name":"Clique-sum","score":0.6199434995651245},{"id":"https://openalex.org/keywords/chordal-graph","display_name":"Chordal graph","score":0.5074710249900818},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4890206754207611},{"id":"https://openalex.org/keywords/perfect-graph","display_name":"Perfect graph","score":0.46242326498031616},{"id":"https://openalex.org/keywords/split-graph","display_name":"Split graph","score":0.4311069846153259},{"id":"https://openalex.org/keywords/pathwidth","display_name":"Pathwidth","score":0.20070910453796387},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.18467360734939575},{"id":"https://openalex.org/keywords/1-planar-graph","display_name":"1-planar graph","score":0.1307540237903595},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.06903347373008728}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8883115649223328},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7188355922698975},{"id":"https://openalex.org/C29738020","wikidata":"https://www.wikidata.org/wiki/Q217605","display_name":"Claw","level":2,"score":0.6908546686172485},{"id":"https://openalex.org/C2777035058","wikidata":"https://www.wikidata.org/wiki/Q1662634","display_name":"Clique","level":2,"score":0.6307453513145447},{"id":"https://openalex.org/C186942658","wikidata":"https://www.wikidata.org/wiki/Q5134410","display_name":"Clique-sum","level":5,"score":0.6199434995651245},{"id":"https://openalex.org/C160446614","wikidata":"https://www.wikidata.org/wiki/Q1322892","display_name":"Chordal graph","level":3,"score":0.5074710249900818},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4890206754207611},{"id":"https://openalex.org/C32972407","wikidata":"https://www.wikidata.org/wiki/Q1187620","display_name":"Perfect graph","level":5,"score":0.46242326498031616},{"id":"https://openalex.org/C8554925","wikidata":"https://www.wikidata.org/wiki/Q3893853","display_name":"Split graph","level":5,"score":0.4311069846153259},{"id":"https://openalex.org/C43517604","wikidata":"https://www.wikidata.org/wiki/Q7144893","display_name":"Pathwidth","level":4,"score":0.20070910453796387},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.18467360734939575},{"id":"https://openalex.org/C102192266","wikidata":"https://www.wikidata.org/wiki/Q4545823","display_name":"1-planar graph","level":4,"score":0.1307540237903595},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.06903347373008728},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0012-365x(81)90218-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0012-365x(81)90218-1","pdf_url":null,"source":{"id":"https://openalex.org/S18902827","display_name":"Discrete Mathematics","issn_l":"0012-365X","issn":["0012-365X","1872-681X"],"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":"Discrete Mathematics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W79234535","https://openalex.org/W1963707128","https://openalex.org/W2001258629","https://openalex.org/W2012329067","https://openalex.org/W2039986023","https://openalex.org/W2065295938","https://openalex.org/W2065306274","https://openalex.org/W2157529519","https://openalex.org/W2475444756","https://openalex.org/W6603277959","https://openalex.org/W6660699182","https://openalex.org/W6667096333","https://openalex.org/W6721094938"],"related_works":["https://openalex.org/W2073285758","https://openalex.org/W1970195683","https://openalex.org/W4229667864","https://openalex.org/W2179401580","https://openalex.org/W2950065463","https://openalex.org/W4298155562","https://openalex.org/W3120743840","https://openalex.org/W2015151531","https://openalex.org/W2186006531","https://openalex.org/W2039582986"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
