{"id":"https://openalex.org/W2912836937","doi":"https://doi.org/10.1016/j.dam.2018.12.010","title":"Blocking sets of tangent lines to a hyperbolic quadric in PG(3, 3)","display_name":"Blocking sets of tangent lines to a hyperbolic quadric in PG(3, 3)","publication_year":2019,"publication_date":"2019-01-21","ids":{"openalex":"https://openalex.org/W2912836937","doi":"https://doi.org/10.1016/j.dam.2018.12.010","mag":"2912836937"},"language":"en","primary_location":{"id":"doi:10.1016/j.dam.2018.12.010","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.dam.2018.12.010","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":true,"oa_status":"green","oa_url":"http://hdl.handle.net/1854/LU-8667903","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5075866833","display_name":"Bart De Bruyn","orcid":"https://orcid.org/0000-0003-4941-7934"},"institutions":[{"id":"https://openalex.org/I32597200","display_name":"Ghent University","ror":"https://ror.org/00cv9y106","country_code":"BE","type":"education","lineage":["https://openalex.org/I32597200"]}],"countries":["BE"],"is_corresponding":true,"raw_author_name":"Bart De Bruyn","raw_affiliation_strings":["Department of Mathematics: Algebra and Geometry, Ghent University, Krijgslaan 281 (S22), B-9000 Gent, Belgium"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics: Algebra and Geometry, Ghent University, Krijgslaan 281 (S22), B-9000 Gent, Belgium","institution_ids":["https://openalex.org/I32597200"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103398230","display_name":"Binod Kumar Sahoo","orcid":null},"institutions":[{"id":"https://openalex.org/I163389970","display_name":"National Institute of Science Education and Research","ror":"https://ror.org/02r2k1c68","country_code":"IN","type":"education","lineage":["https://openalex.org/I163389970","https://openalex.org/I200207707"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Binod Kumar Sahoo","raw_affiliation_strings":["School of Mathematical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. - Jatni, District - Khurda, Odisha 752050, India"],"affiliations":[{"raw_affiliation_string":"School of Mathematical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. - Jatni, District - Khurda, Odisha 752050, India","institution_ids":["https://openalex.org/I163389970"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066804832","display_name":"Bikramaditya Sahu","orcid":"https://orcid.org/0000-0003-1386-7546"},"institutions":[{"id":"https://openalex.org/I163389970","display_name":"National Institute of Science Education and Research","ror":"https://ror.org/02r2k1c68","country_code":"IN","type":"education","lineage":["https://openalex.org/I163389970","https://openalex.org/I200207707"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Bikramaditya Sahu","raw_affiliation_strings":["School of Mathematical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. - Jatni, District - Khurda, Odisha 752050, India"],"affiliations":[{"raw_affiliation_string":"School of Mathematical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. - Jatni, District - Khurda, Odisha 752050, India","institution_ids":["https://openalex.org/I163389970"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5075866833"],"corresponding_institution_ids":["https://openalex.org/I32597200"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":2.0309,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.8381877,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"266","issue":null,"first_page":"121","last_page":"129"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10849","display_name":"Finite Group Theory Research","score":0.9998000264167786,"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/T10849","display_name":"Finite Group Theory Research","score":0.9998000264167786,"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/T11130","display_name":"Coding theory and cryptography","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T11797","display_name":"graph theory and CDMA systems","score":0.9851999878883362,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quadric","display_name":"Quadric","score":0.8749890327453613},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8495839238166809},{"id":"https://openalex.org/keywords/blocking","display_name":"Blocking (statistics)","score":0.7037749290466309},{"id":"https://openalex.org/keywords/isomorphism","display_name":"Isomorphism (crystallography)","score":0.6334091424942017},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6107638478279114},{"id":"https://openalex.org/keywords/blocking-set","display_name":"Blocking set","score":0.6046878099441528},{"id":"https://openalex.org/keywords/tangent","display_name":"Tangent","score":0.5514904856681824},{"id":"https://openalex.org/keywords/connection","display_name":"Connection (principal bundle)","score":0.43934115767478943},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.4315757751464844},{"id":"https://openalex.org/keywords/prime","display_name":"Prime (order theory)","score":0.42714935541152954},{"id":"https://openalex.org/keywords/prime-power","display_name":"Prime power","score":0.4265994131565094},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.20082569122314453},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.18964815139770508},{"id":"https://openalex.org/keywords/projective-space","display_name":"Projective space","score":0.06564170122146606}],"concepts":[{"id":"https://openalex.org/C2779219049","wikidata":"https://www.wikidata.org/wiki/Q852117","display_name":"Quadric","level":2,"score":0.8749890327453613},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8495839238166809},{"id":"https://openalex.org/C144745244","wikidata":"https://www.wikidata.org/wiki/Q4927286","display_name":"Blocking (statistics)","level":2,"score":0.7037749290466309},{"id":"https://openalex.org/C203436722","wikidata":"https://www.wikidata.org/wiki/Q902950","display_name":"Isomorphism (crystallography)","level":3,"score":0.6334091424942017},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6107638478279114},{"id":"https://openalex.org/C56952292","wikidata":"https://www.wikidata.org/wiki/Q17005980","display_name":"Blocking set","level":5,"score":0.6046878099441528},{"id":"https://openalex.org/C138187205","wikidata":"https://www.wikidata.org/wiki/Q131251","display_name":"Tangent","level":2,"score":0.5514904856681824},{"id":"https://openalex.org/C13355873","wikidata":"https://www.wikidata.org/wiki/Q2920850","display_name":"Connection (principal bundle)","level":2,"score":0.43934115767478943},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.4315757751464844},{"id":"https://openalex.org/C184992742","wikidata":"https://www.wikidata.org/wiki/Q7243229","display_name":"Prime (order theory)","level":2,"score":0.42714935541152954},{"id":"https://openalex.org/C174072685","wikidata":"https://www.wikidata.org/wiki/Q1667469","display_name":"Prime power","level":3,"score":0.4265994131565094},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.20082569122314453},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.18964815139770508},{"id":"https://openalex.org/C75280867","wikidata":"https://www.wikidata.org/wiki/Q877775","display_name":"Projective space","level":3,"score":0.06564170122146606},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C177846678","wikidata":"https://www.wikidata.org/wiki/Q1501864","display_name":"Projective test","level":2,"score":0.0},{"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/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.0},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/j.dam.2018.12.010","is_oa":false,"landing_page_url":"https://doi.org/10.1016/j.dam.2018.12.010","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"},{"id":"pmh:oai:archive.ugent.be:8667903","is_oa":true,"landing_page_url":"http://hdl.handle.net/1854/LU-8667903","pdf_url":null,"source":{"id":"https://openalex.org/S4306400478","display_name":"Ghent University Academic Bibliography (Ghent University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I32597200","host_organization_name":"Ghent University","host_organization_lineage":["https://openalex.org/I32597200"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISSN: 1872-6771","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"pmh:oai:archive.ugent.be:8667903","is_oa":true,"landing_page_url":"http://hdl.handle.net/1854/LU-8667903","pdf_url":null,"source":{"id":"https://openalex.org/S4306400478","display_name":"Ghent University Academic Bibliography (Ghent University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I32597200","host_organization_name":"Ghent University","host_organization_lineage":["https://openalex.org/I32597200"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISSN: 1872-6771","raw_type":"info:eu-repo/semantics/publishedVersion"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2515853249","display_name":null,"funder_award_id":"MTR/2017/000372","funder_id":"https://openalex.org/F4320327905","funder_display_name":"National Institute of Science Education and Research"}],"funders":[{"id":"https://openalex.org/F4320320719","display_name":"Department of Science and Technology, Ministry of Science and Technology, India","ror":"https://ror.org/0101xrq71"},{"id":"https://openalex.org/F4320327905","display_name":"National Institute of Science Education and Research","ror":"https://ror.org/02r2k1c68"},{"id":"https://openalex.org/F4320334771","display_name":"Science and Engineering Research Board","ror":"https://ror.org/03ffdsr55"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1490116680","https://openalex.org/W1583183878","https://openalex.org/W2024625332","https://openalex.org/W2024891816","https://openalex.org/W2049420159","https://openalex.org/W2618020481","https://openalex.org/W2884548123","https://openalex.org/W2904023870","https://openalex.org/W2963354512","https://openalex.org/W6738209776"],"related_works":["https://openalex.org/W1976677241","https://openalex.org/W4309193091","https://openalex.org/W1511389945","https://openalex.org/W2377811925","https://openalex.org/W2375761457","https://openalex.org/W2901784589","https://openalex.org/W2904023870","https://openalex.org/W54255953","https://openalex.org/W2884548123","https://openalex.org/W2884915842"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}