{"id":"https://openalex.org/W1607338820","doi":"https://doi.org/10.1023/a:1008296404711","title":"Maximal Partial Spreads and Flocks","display_name":"Maximal Partial Spreads and Flocks","publication_year":1997,"publication_date":"1997-02-01","ids":{"openalex":"https://openalex.org/W1607338820","doi":"https://doi.org/10.1023/a:1008296404711","mag":"1607338820"},"language":"en","primary_location":{"id":"doi:10.1023/a:1008296404711","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1008296404711","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/A5107305724","display_name":"Norman L. Johnson","orcid":"https://orcid.org/0000-0003-3636-7579"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Norman L. Johnson","raw_affiliation_strings":["Mathematics Department, University of Iowa, Iowa City, Iowa 52242, USA; njohnson@math.uiowa.edu#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Mathematics Department, University of Iowa, Iowa City, Iowa 52242, USA; njohnson@math.uiowa.edu#TAB#","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025297033","display_name":"Guglielmo Lunardon","orcid":"https://orcid.org/0000-0002-6129-284X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Guglielmo Lunardon","raw_affiliation_strings":["Dip. di Matematica e Applicazioni, Complesso di Monte S. Angelo-Edificio T, Viacintia 80126 Napoli, Italy; lunardon@matna2.dma.unina.it#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dip. di Matematica e Applicazioni, Complesso di Monte S. Angelo-Edificio T, Viacintia 80126 Napoli, Italy; lunardon@matna2.dma.unina.it#TAB#","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3190,"currency":"USD","value_usd":3190},"apc_paid":null,"fwci":0.6175,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.5352349,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"10","issue":"2","first_page":"193","last_page":"202"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10849","display_name":"Finite Group Theory Research","score":0.9991000294685364,"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":0.9991000294685364,"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":0.9961000084877014,"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/T11130","display_name":"Coding theory and cryptography","score":0.9904999732971191,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/flock","display_name":"Flock","score":0.7418267130851746},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7379860877990723},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6254673600196838},{"id":"https://openalex.org/keywords/base","display_name":"Base (topology)","score":0.5931230783462524},{"id":"https://openalex.org/keywords/net","display_name":"Net (polyhedron)","score":0.5303507447242737},{"id":"https://openalex.org/keywords/property","display_name":"Property (philosophy)","score":0.5280196070671082},{"id":"https://openalex.org/keywords/line","display_name":"Line (geometry)","score":0.5147021412849426},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.45676755905151367},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.17756006121635437},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.10586977005004883},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.09554490447044373},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.057291001081466675},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.05107724666595459}],"concepts":[{"id":"https://openalex.org/C134215735","wikidata":"https://www.wikidata.org/wiki/Q120997","display_name":"Flock","level":2,"score":0.7418267130851746},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7379860877990723},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6254673600196838},{"id":"https://openalex.org/C42058472","wikidata":"https://www.wikidata.org/wiki/Q810214","display_name":"Base (topology)","level":2,"score":0.5931230783462524},{"id":"https://openalex.org/C14166107","wikidata":"https://www.wikidata.org/wiki/Q253829","display_name":"Net (polyhedron)","level":2,"score":0.5303507447242737},{"id":"https://openalex.org/C189950617","wikidata":"https://www.wikidata.org/wiki/Q937228","display_name":"Property (philosophy)","level":2,"score":0.5280196070671082},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.5147021412849426},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.45676755905151367},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.17756006121635437},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.10586977005004883},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09554490447044373},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.057291001081466675},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.05107724666595459},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","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/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1023/a:1008296404711","is_oa":false,"landing_page_url":"https://doi.org/10.1023/a:1008296404711","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":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1587501220","https://openalex.org/W1969447708","https://openalex.org/W2020742929","https://openalex.org/W2043223857","https://openalex.org/W2043649610","https://openalex.org/W2065021541","https://openalex.org/W2335383639"],"related_works":["https://openalex.org/W1964655178","https://openalex.org/W2032854653","https://openalex.org/W3027407481","https://openalex.org/W1976296680","https://openalex.org/W2158769936","https://openalex.org/W2889385621","https://openalex.org/W2327661222","https://openalex.org/W1988328259","https://openalex.org/W1971588791","https://openalex.org/W1978824267"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2016-06-24T00:00:00"}