{"id":"https://openalex.org/W1480202011","doi":"https://doi.org/10.1023/a:1008329410829","title":"Lower Bounds for Transversal Covers","display_name":"Lower Bounds for Transversal Covers","publication_year":1998,"publication_date":"1998-12-01","ids":{"openalex":"https://openalex.org/W1480202011","doi":"https://doi.org/10.1023/a:1008329410829","mag":"1480202011"},"language":"en","primary_location":{"id":"doi:10.1023/a:1008329410829","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1008329410829","pdf_url":null,"source":{"id":"https://openalex.org/S81616010","display_name":"Designs Codes and Cryptography","issn_l":"0925-1022","issn":["0925-1022","1573-7586"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Designs, Codes and Cryptography","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/A5010712874","display_name":"Brett Stevens","orcid":"https://orcid.org/0000-0003-4336-1773"},"institutions":[{"id":"https://openalex.org/I185261750","display_name":"University of Toronto","ror":"https://ror.org/03dbr7087","country_code":"CA","type":"education","lineage":["https://openalex.org/I185261750"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Brett Stevens","raw_affiliation_strings":["Department of Mathematics, University of Toronto, Toronto, Canada, M5S 3G3","Department of Mathematics, University of Toronto, Toronto,Canada M5S 3G3"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, University of Toronto, Toronto, Canada, M5S 3G3","institution_ids":["https://openalex.org/I185261750"]},{"raw_affiliation_string":"Department of Mathematics, University of Toronto, Toronto,Canada M5S 3G3","institution_ids":["https://openalex.org/I185261750"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010007126","display_name":"Lucia Moura","orcid":"https://orcid.org/0000-0003-1763-2584"},"institutions":[{"id":"https://openalex.org/I185261750","display_name":"University of Toronto","ror":"https://ror.org/03dbr7087","country_code":"CA","type":"education","lineage":["https://openalex.org/I185261750"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Lucia Moura","raw_affiliation_strings":["Department of Computer Science, University of Toronto, Toronto, Canada, M5S 3G4","Department of Computer Science University of Toronto, Toronto, Canada M5S 3G4"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Toronto, Toronto, Canada, M5S 3G4","institution_ids":["https://openalex.org/I185261750"]},{"raw_affiliation_string":"Department of Computer Science University of Toronto, Toronto, Canada M5S 3G4","institution_ids":["https://openalex.org/I185261750"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042503682","display_name":"Eric Mendelsohn","orcid":"https://orcid.org/0000-0002-2711-8995"},"institutions":[{"id":"https://openalex.org/I185261750","display_name":"University of Toronto","ror":"https://ror.org/03dbr7087","country_code":"CA","type":"education","lineage":["https://openalex.org/I185261750"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Eric Mendelsohn","raw_affiliation_strings":["Department of Mathematics, University of Toronto, Toronto, Canada, M5S 3G3","Department of Mathematics, University of Toronto, Toronto,Canada M5S 3G3"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, University of Toronto, Toronto, Canada, M5S 3G3","institution_ids":["https://openalex.org/I185261750"]},{"raw_affiliation_string":"Department of Mathematics, University of Toronto, Toronto,Canada M5S 3G3","institution_ids":["https://openalex.org/I185261750"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5010712874"],"corresponding_institution_ids":["https://openalex.org/I185261750"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":1.361,"has_fulltext":false,"cited_by_count":39,"citation_normalized_percentile":{"value":0.71385542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"15","issue":"3","first_page":"279","last_page":"299"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11329","display_name":"Limits and Structures in Graph Theory","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11329","display_name":"Limits and Structures in Graph Theory","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"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/T11797","display_name":"graph theory and CDMA systems","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10996","display_name":"Computational Geometry and Mesh Generation","score":0.9933000206947327,"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/combinatorics","display_name":"Combinatorics","score":0.7943452596664429},{"id":"https://openalex.org/keywords/transversal","display_name":"Transversal (combinatorics)","score":0.7459255456924438},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7167279124259949},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.647807776927948},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.6016422510147095},{"id":"https://openalex.org/keywords/disjoint-sets","display_name":"Disjoint sets","score":0.5847392678260803},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.49840235710144043},{"id":"https://openalex.org/keywords/fixed-point","display_name":"Fixed point","score":0.4781835377216339},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.46982502937316895},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.15272635221481323},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.06513142585754395}],"concepts":[{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7943452596664429},{"id":"https://openalex.org/C2780130068","wikidata":"https://www.wikidata.org/wiki/Q2208651","display_name":"Transversal (combinatorics)","level":2,"score":0.7459255456924438},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7167279124259949},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.647807776927948},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.6016422510147095},{"id":"https://openalex.org/C45340560","wikidata":"https://www.wikidata.org/wiki/Q215382","display_name":"Disjoint sets","level":2,"score":0.5847392678260803},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.49840235710144043},{"id":"https://openalex.org/C61445026","wikidata":"https://www.wikidata.org/wiki/Q217608","display_name":"Fixed point","level":2,"score":0.4781835377216339},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.46982502937316895},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.15272635221481323},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06513142585754395},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"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:10.1023/a:1008329410829","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1008329410829","pdf_url":null,"source":{"id":"https://openalex.org/S81616010","display_name":"Designs Codes and Cryptography","issn_l":"0925-1022","issn":["0925-1022","1573-7586"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Designs, Codes and Cryptography","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"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1970233409","https://openalex.org/W1973658497","https://openalex.org/W1989616165","https://openalex.org/W1998992478","https://openalex.org/W2000254368","https://openalex.org/W2005616548","https://openalex.org/W2019935404","https://openalex.org/W2025247912","https://openalex.org/W2027948337","https://openalex.org/W2036517292","https://openalex.org/W2064830370","https://openalex.org/W2087567316","https://openalex.org/W2102302255","https://openalex.org/W2122317343","https://openalex.org/W2166614386","https://openalex.org/W2911678896"],"related_works":["https://openalex.org/W2271112932","https://openalex.org/W2772332644","https://openalex.org/W1969626693","https://openalex.org/W4251387394","https://openalex.org/W2897654805","https://openalex.org/W3144250209","https://openalex.org/W4390647510","https://openalex.org/W2222693213","https://openalex.org/W2167396658","https://openalex.org/W2952258011"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2016-06-24T00:00:00"}
