{"id":"https://openalex.org/W2081532023","doi":"https://doi.org/10.1016/s0166-218x(97)00081-4","title":"Polyhedral characterizations and perfection of line graphs","display_name":"Polyhedral characterizations and perfection of line graphs","publication_year":1998,"publication_date":"1998-01-01","ids":{"openalex":"https://openalex.org/W2081532023","doi":"https://doi.org/10.1016/s0166-218x(97)00081-4","mag":"2081532023"},"language":"en","primary_location":{"id":"doi:10.1016/s0166-218x(97)00081-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0166-218x(97)00081-4","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"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 Applied 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/A5052874005","display_name":"Dasong Cao","orcid":null},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Dasong Cao","raw_affiliation_strings":["School of Industrial and System Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Industrial and System Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA#TAB#","institution_ids":["https://openalex.org/I130701444"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057281816","display_name":"George L. Nemhauser","orcid":null},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"George L. Nemhauser","raw_affiliation_strings":["School of Industrial and System Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Industrial and System Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA#TAB#","institution_ids":["https://openalex.org/I130701444"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5052874005"],"corresponding_institution_ids":["https://openalex.org/I130701444"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.21462513,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"81","issue":"1-3","first_page":"141","last_page":"154"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10374","display_name":"Advanced Graph Theory Research","score":0.9995999932289124,"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":0.9995999932289124,"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/T11476","display_name":"Graph theory and applications","score":0.9886000156402588,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.988099992275238,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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":0.806955873966217},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6109751462936401},{"id":"https://openalex.org/keywords/line","display_name":"Line (geometry)","score":0.5501610636711121},{"id":"https://openalex.org/keywords/perfection","display_name":"Perfection","score":0.4953564405441284},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.342279314994812},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.188852459192276}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.806955873966217},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6109751462936401},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.5501610636711121},{"id":"https://openalex.org/C2437467","wikidata":"https://www.wikidata.org/wiki/Q378701","display_name":"Perfection","level":2,"score":0.4953564405441284},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.342279314994812},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.188852459192276},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0166-218x(97)00081-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0166-218x(97)00081-4","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"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 Applied Mathematics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W37994088","https://openalex.org/W1495591881","https://openalex.org/W1968143987","https://openalex.org/W1994363553","https://openalex.org/W2014287896","https://openalex.org/W2053564233","https://openalex.org/W2066554880","https://openalex.org/W2068244470","https://openalex.org/W2100440346","https://openalex.org/W2327315803","https://openalex.org/W2509120017","https://openalex.org/W2595833503","https://openalex.org/W2989792514","https://openalex.org/W4285719527","https://openalex.org/W6724932265","https://openalex.org/W7019141620"],"related_works":["https://openalex.org/W3026970341","https://openalex.org/W2734996144","https://openalex.org/W4284977903","https://openalex.org/W1971703612","https://openalex.org/W3189535440","https://openalex.org/W2359855767","https://openalex.org/W2899472151","https://openalex.org/W67341504","https://openalex.org/W4282022096","https://openalex.org/W2571165813"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"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"}