{"id":"https://openalex.org/W1984643864","doi":"https://doi.org/10.1007/bf01918757","title":"Relations between subclasses of greedoids","display_name":"Relations between subclasses of greedoids","publication_year":1985,"publication_date":"1985-12-01","ids":{"openalex":"https://openalex.org/W1984643864","doi":"https://doi.org/10.1007/bf01918757","mag":"1984643864"},"language":"en","primary_location":{"id":"doi:10.1007/bf01918757","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01918757","pdf_url":null,"source":{"id":"https://openalex.org/S126160977","display_name":"Mathematical Methods of Operations Research","issn_l":"1432-2994","issn":["1432-2994","1432-5217"],"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":"Zeitschrift f\u00fcr Operations Research","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/A5113174409","display_name":"B. Korte","orcid":null},"institutions":[{"id":"https://openalex.org/I135140700","display_name":"University of Bonn","ror":"https://ror.org/041nas322","country_code":"DE","type":"education","lineage":["https://openalex.org/I135140700"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"B. Korte","raw_affiliation_strings":["Institut f\u00fcr \u00d6konometrie and Operations Research, Abteilung Operations Research, Rheinische Friedrich Wilhelms Universit\u00e4t Bonn, Nanistra\u00dfe 2, 5300, Bonn 1, W. Germany","Institut f\u00fcr \u00d6konometrie and Operations Research, Abteilung Operations Research, Rheinische Friedrich Wilhelms Universit\u00e4t Bonn, Bonn 1, W. Germany"],"affiliations":[{"raw_affiliation_string":"Institut f\u00fcr \u00d6konometrie and Operations Research, Abteilung Operations Research, Rheinische Friedrich Wilhelms Universit\u00e4t Bonn, Nanistra\u00dfe 2, 5300, Bonn 1, W. Germany","institution_ids":["https://openalex.org/I135140700"]},{"raw_affiliation_string":"Institut f\u00fcr \u00d6konometrie and Operations Research, Abteilung Operations Research, Rheinische Friedrich Wilhelms Universit\u00e4t Bonn, Bonn 1, W. Germany","institution_ids":["https://openalex.org/I135140700"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067889485","display_name":"L\u00e1szl\u00f3 Lov\u00e1sz","orcid":"https://orcid.org/0000-0002-6242-5894"},"institutions":[{"id":"https://openalex.org/I106118109","display_name":"E\u00f6tv\u00f6s Lor\u00e1nd University","ror":"https://ror.org/01jsq2704","country_code":"HU","type":"education","lineage":["https://openalex.org/I106118109"]}],"countries":["HU"],"is_corresponding":false,"raw_author_name":"L. Lov\u00e1sz","raw_affiliation_strings":["Institute of Mathematics, E\u00f6tvos Lorand University, Muzeum Krt. 6-8, H-1088, Budapest, Hungary","Institute of Mathematics, Eotvos Lorand University, Budapest, Hungary"],"affiliations":[{"raw_affiliation_string":"Institute of Mathematics, E\u00f6tvos Lorand University, Muzeum Krt. 6-8, H-1088, Budapest, Hungary","institution_ids":["https://openalex.org/I106118109"]},{"raw_affiliation_string":"Institute of Mathematics, Eotvos Lorand University, Budapest, Hungary","institution_ids":["https://openalex.org/I106118109"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5113174409"],"corresponding_institution_ids":["https://openalex.org/I135140700"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":1.5683,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.81581818,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"29","issue":"7","first_page":"249","last_page":"267"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9945999979972839,"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/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9945999979972839,"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/T11727","display_name":"Advanced Algebra and Logic","score":0.9922000169754028,"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/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9894000291824341,"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/inclusion","display_name":"Inclusion (mineral)","score":0.7143957614898682},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4241303503513336},{"id":"https://openalex.org/keywords/interval","display_name":"Interval (graph theory)","score":0.4173981249332428},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.37770724296569824},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.2335328757762909},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.22240033745765686},{"id":"https://openalex.org/keywords/mineralogy","display_name":"Mineralogy","score":0.033753931522369385}],"concepts":[{"id":"https://openalex.org/C109359841","wikidata":"https://www.wikidata.org/wiki/Q728944","display_name":"Inclusion (mineral)","level":2,"score":0.7143957614898682},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4241303503513336},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.4173981249332428},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.37770724296569824},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.2335328757762909},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.22240033745765686},{"id":"https://openalex.org/C199289684","wikidata":"https://www.wikidata.org/wiki/Q83353","display_name":"Mineralogy","level":1,"score":0.033753931522369385}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/bf01918757","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01918757","pdf_url":null,"source":{"id":"https://openalex.org/S126160977","display_name":"Mathematical Methods of Operations Research","issn_l":"1432-2994","issn":["1432-2994","1432-5217"],"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":"Zeitschrift f\u00fcr Operations Research","raw_type":"journal-article"},{"id":"pmh:hdl:10068/181875","is_oa":false,"landing_page_url":"http://hdl.handle.net/10068/181875","pdf_url":null,"source":{"id":"https://openalex.org/S4377196900","display_name":"OpenGrey (Institut de l'Information Scientifique et Technique)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1295345811","host_organization_name":"Institut de l'Information Scientifique et Technique","host_organization_lineage":["https://openalex.org/I1295345811"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"I - Miscellaneous"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","score":0.800000011920929,"display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W67184062","https://openalex.org/W1527517713","https://openalex.org/W1965181542","https://openalex.org/W2044326680","https://openalex.org/W2333364193","https://openalex.org/W4212879474"],"related_works":["https://openalex.org/W2748952813","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/W1587224694","https://openalex.org/W2042127053","https://openalex.org/W2142036596"],"abstract_inverted_index":null,"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}