{"id":"https://openalex.org/W2070377429","doi":"https://doi.org/10.1016/s0012-365x(99)00082-5","title":"The spectrum of minimal blocking sets","display_name":"The spectrum of minimal blocking sets","publication_year":1999,"publication_date":"1999-10-01","ids":{"openalex":"https://openalex.org/W2070377429","doi":"https://doi.org/10.1016/s0012-365x(99)00082-5","mag":"2070377429"},"language":"en","primary_location":{"id":"doi:10.1016/s0012-365x(99)00082-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0012-365x(99)00082-5","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/A5037924959","display_name":"Stefano Innamorati","orcid":"https://orcid.org/0000-0002-6109-6566"},"institutions":[{"id":"https://openalex.org/I26415053","display_name":"University of L'Aquila","ror":"https://ror.org/01j9p1r26","country_code":"IT","type":"education","lineage":["https://openalex.org/I26415053"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Stefano Innamorati","raw_affiliation_strings":["Dip. di Ingegneria Elettrica, Universit\u00e0 de L'Aquila, Italy"],"affiliations":[{"raw_affiliation_string":"Dip. di Ingegneria Elettrica, Universit\u00e0 de L'Aquila, Italy","institution_ids":["https://openalex.org/I26415053"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086293968","display_name":"Antonio Maturo","orcid":"https://orcid.org/0000-0002-1734-8797"},"institutions":[{"id":"https://openalex.org/I4210147037","display_name":"Azienda USL di Pescara","ror":"https://ror.org/048ym4d69","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210147037"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Antonio Maturo","raw_affiliation_strings":["Dip. di Scienze e Storia dell'Architettura, Universit\u00e0 di Pescara, Viale Pindaro 42, 65127 Pescara, Italy"],"affiliations":[{"raw_affiliation_string":"Dip. di Scienze e Storia dell'Architettura, Universit\u00e0 di Pescara, Viale Pindaro 42, 65127 Pescara, Italy","institution_ids":["https://openalex.org/I4210147037"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5086293968"],"corresponding_institution_ids":["https://openalex.org/I4210147037"],"apc_list":{"value":3000,"currency":"USD","value_usd":3000},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.16602234,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"208-209","issue":null,"first_page":"339","last_page":"347"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9984999895095825,"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"}},"topics":[{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9984999895095825,"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/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/T10849","display_name":"Finite Group Theory Research","score":0.9979000091552734,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8578346967697144},{"id":"https://openalex.org/keywords/blocking","display_name":"Blocking (statistics)","score":0.8563113808631897},{"id":"https://openalex.org/keywords/uniqueness","display_name":"Uniqueness","score":0.7651336789131165},{"id":"https://openalex.org/keywords/blocking-set","display_name":"Blocking set","score":0.7150580286979675},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6418168544769287},{"id":"https://openalex.org/keywords/spectrum","display_name":"Spectrum (functional analysis)","score":0.6178947687149048},{"id":"https://openalex.org/keywords/plane","display_name":"Plane (geometry)","score":0.5189956426620483},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4822452962398529},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4322662949562073},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.4106316566467285},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.18469959497451782},{"id":"https://openalex.org/keywords/projective-test","display_name":"Projective test","score":0.1765713095664978},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.09886744618415833},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.09780094027519226},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.08940476179122925},{"id":"https://openalex.org/keywords/projective-space","display_name":"Projective space","score":0.08106285333633423}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8578346967697144},{"id":"https://openalex.org/C144745244","wikidata":"https://www.wikidata.org/wiki/Q4927286","display_name":"Blocking (statistics)","level":2,"score":0.8563113808631897},{"id":"https://openalex.org/C2777021972","wikidata":"https://www.wikidata.org/wiki/Q22976830","display_name":"Uniqueness","level":2,"score":0.7651336789131165},{"id":"https://openalex.org/C56952292","wikidata":"https://www.wikidata.org/wiki/Q17005980","display_name":"Blocking set","level":5,"score":0.7150580286979675},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6418168544769287},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.6178947687149048},{"id":"https://openalex.org/C17825722","wikidata":"https://www.wikidata.org/wiki/Q17285","display_name":"Plane (geometry)","level":2,"score":0.5189956426620483},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4822452962398529},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4322662949562073},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.4106316566467285},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.18469959497451782},{"id":"https://openalex.org/C177846678","wikidata":"https://www.wikidata.org/wiki/Q1501864","display_name":"Projective test","level":2,"score":0.1765713095664978},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.09886744618415833},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09780094027519226},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.08940476179122925},{"id":"https://openalex.org/C75280867","wikidata":"https://www.wikidata.org/wiki/Q877775","display_name":"Projective space","level":3,"score":0.08106285333633423},{"id":"https://openalex.org/C132702353","wikidata":"https://www.wikidata.org/wiki/Q2538404","display_name":"Complex projective space","level":4,"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/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0012-365x(99)00082-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0012-365x(99)00082-5","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":14,"referenced_works":["https://openalex.org/W59782494","https://openalex.org/W1975604075","https://openalex.org/W1981099452","https://openalex.org/W1995978860","https://openalex.org/W2029380521","https://openalex.org/W2079259333","https://openalex.org/W2124113125","https://openalex.org/W2128134930","https://openalex.org/W2133091062","https://openalex.org/W2160827971","https://openalex.org/W2223542227","https://openalex.org/W2322839632","https://openalex.org/W2326214164","https://openalex.org/W2605050281"],"related_works":["https://openalex.org/W2772435253","https://openalex.org/W4375959594","https://openalex.org/W2189442229","https://openalex.org/W1995543006","https://openalex.org/W2464579995","https://openalex.org/W4235717241","https://openalex.org/W4287003283","https://openalex.org/W2550001749","https://openalex.org/W4388212546","https://openalex.org/W1964404752"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-04-01T17:29:45.350535","created_date":"2025-10-10T00:00:00"}
