{"id":"https://openalex.org/W1984518988","doi":"https://doi.org/10.1007/bf01305234","title":"On a problem of Erd?s and Lov\ufffdsz: Random lines in a projective plane","display_name":"On a problem of Erd?s and Lov\ufffdsz: Random lines in a projective plane","publication_year":1992,"publication_date":"1992-12-01","ids":{"openalex":"https://openalex.org/W1984518988","doi":"https://doi.org/10.1007/bf01305234","mag":"1984518988"},"language":"en","primary_location":{"id":"doi:10.1007/bf01305234","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01305234","pdf_url":null,"source":{"id":"https://openalex.org/S72366220","display_name":"COMBINATORICA","issn_l":"0209-9683","issn":["0209-9683","1439-6912"],"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":"Combinatorica","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/A5108198411","display_name":"Jeff Kahn","orcid":null},"institutions":[{"id":"https://openalex.org/I102322142","display_name":"Rutgers, The State University of New Jersey","ror":"https://ror.org/05vt9qd57","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Jeff Kahn","raw_affiliation_strings":["Department of Mathematics and Center for O. R., Rutgers University, 08903, New Brunswick, NJ, U.S.A","Department of Mathematics and Center for O. R., Rutgers University, New Brunswick, U.S.A"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics and Center for O. R., Rutgers University, 08903, New Brunswick, NJ, U.S.A","institution_ids":["https://openalex.org/I102322142"]},{"raw_affiliation_string":"Department of Mathematics and Center for O. R., Rutgers University, New Brunswick, U.S.A","institution_ids":["https://openalex.org/I102322142"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5108198411"],"corresponding_institution_ids":["https://openalex.org/I102322142"],"apc_list":null,"apc_paid":null,"fwci":0.8218,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.62373505,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"12","issue":"4","first_page":"417","last_page":"423"},"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":0.9991999864578247,"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":0.9991999864578247,"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/T11830","display_name":"Point processes and geometric inequalities","score":0.9868999719619751,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"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/T12404","display_name":"Mathematical Approximation and Integration","score":0.9757999777793884,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"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":0.8820768594741821},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.8512674570083618},{"id":"https://openalex.org/keywords/projective-plane","display_name":"Projective plane","score":0.8198223114013672},{"id":"https://openalex.org/keywords/blocking-set","display_name":"Blocking set","score":0.6213771104812622},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.557054340839386},{"id":"https://openalex.org/keywords/plane","display_name":"Plane (geometry)","score":0.5379266142845154},{"id":"https://openalex.org/keywords/projective-space","display_name":"Projective space","score":0.45654726028442383},{"id":"https://openalex.org/keywords/real-projective-plane","display_name":"Real projective plane","score":0.4287506937980652},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.41003239154815674},{"id":"https://openalex.org/keywords/projective-test","display_name":"Projective test","score":0.39358121156692505},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.37550586462020874},{"id":"https://openalex.org/keywords/collineation","display_name":"Collineation","score":0.22050273418426514},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.18531832098960876},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.08190861344337463},{"id":"https://openalex.org/keywords/correlation","display_name":"Correlation","score":0.04635658860206604}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8820768594741821},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.8512674570083618},{"id":"https://openalex.org/C39290043","wikidata":"https://www.wikidata.org/wiki/Q1475760","display_name":"Projective plane","level":3,"score":0.8198223114013672},{"id":"https://openalex.org/C56952292","wikidata":"https://www.wikidata.org/wiki/Q17005980","display_name":"Blocking set","level":5,"score":0.6213771104812622},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.557054340839386},{"id":"https://openalex.org/C17825722","wikidata":"https://www.wikidata.org/wiki/Q17285","display_name":"Plane (geometry)","level":2,"score":0.5379266142845154},{"id":"https://openalex.org/C75280867","wikidata":"https://www.wikidata.org/wiki/Q877775","display_name":"Projective space","level":3,"score":0.45654726028442383},{"id":"https://openalex.org/C37470923","wikidata":"https://www.wikidata.org/wiki/Q633815","display_name":"Real projective plane","level":5,"score":0.4287506937980652},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.41003239154815674},{"id":"https://openalex.org/C177846678","wikidata":"https://www.wikidata.org/wiki/Q1501864","display_name":"Projective test","level":2,"score":0.39358121156692505},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.37550586462020874},{"id":"https://openalex.org/C163434512","wikidata":"https://www.wikidata.org/wiki/Q390741","display_name":"Collineation","level":4,"score":0.22050273418426514},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.18531832098960876},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.08190861344337463},{"id":"https://openalex.org/C117220453","wikidata":"https://www.wikidata.org/wiki/Q5172842","display_name":"Correlation","level":2,"score":0.04635658860206604},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"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/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf01305234","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01305234","pdf_url":null,"source":{"id":"https://openalex.org/S72366220","display_name":"COMBINATORICA","issn_l":"0209-9683","issn":["0209-9683","1439-6912"],"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":"Combinatorica","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":3,"referenced_works":["https://openalex.org/W170265681","https://openalex.org/W2005616548","https://openalex.org/W2169821423"],"related_works":["https://openalex.org/W3190357833","https://openalex.org/W4287029588","https://openalex.org/W2001751485","https://openalex.org/W1496979297","https://openalex.org/W4313240746","https://openalex.org/W159347311","https://openalex.org/W1998825877","https://openalex.org/W2316919128","https://openalex.org/W2480862861","https://openalex.org/W1991702258"],"abstract_inverted_index":null,"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}