{"id":"https://openalex.org/W2083010603","doi":"https://doi.org/10.1016/0012-365x(90)90040-o","title":"Disjoint subsets of integers having a constant sum","display_name":"Disjoint subsets of integers having a constant sum","publication_year":1990,"publication_date":"1990-05-01","ids":{"openalex":"https://openalex.org/W2083010603","doi":"https://doi.org/10.1016/0012-365x(90)90040-o","mag":"2083010603"},"language":"en","primary_location":{"id":"doi:10.1016/0012-365x(90)90040-o","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0012-365x(90)90040-o","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/A5035443911","display_name":"Kiyoshi Ando","orcid":"https://orcid.org/0000-0002-8849-4505"},"institutions":[{"id":"https://openalex.org/I201480613","display_name":"Tama University","ror":"https://ror.org/02gdq8g56","country_code":"JP","type":"education","lineage":["https://openalex.org/I201480613"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kiyoshi Ando","raw_affiliation_strings":["Nippon Ika University, Nakahara, Kawasaki 211, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nippon Ika University, Nakahara, Kawasaki 211, Japan","institution_ids":["https://openalex.org/I201480613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061941505","display_name":"Severino V. Gervacio","orcid":"https://orcid.org/0000-0001-6036-5835"},"institutions":[{"id":"https://openalex.org/I24245652","display_name":"Mindanao State University \u2013 Iligan Institute of Technology","ror":"https://ror.org/00qemyc07","country_code":"PH","type":"education","lineage":["https://openalex.org/I24245652"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Severino Gervacio","raw_affiliation_strings":["MSU-Iligan Institute of Technology, Tibanga, Iligan City, Philippines"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"MSU-Iligan Institute of Technology, Tibanga, Iligan City, Philippines","institution_ids":["https://openalex.org/I24245652"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062422841","display_name":"Mikio Kan\u014d","orcid":"https://orcid.org/0000-0002-7545-0327"},"institutions":[{"id":"https://openalex.org/I4210117807","display_name":"National Institute of Technology, Akashi College","ror":"https://ror.org/029kvcs29","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210117807","https://openalex.org/I4210120810"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mikio Kano","raw_affiliation_strings":["Akashi Technological College, Uozumi, Akashi 674, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Akashi Technological College, Uozumi, Akashi 674, Japan","institution_ids":["https://openalex.org/I4210117807"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3000,"currency":"USD","value_usd":3000},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.28310011,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"82","issue":"1","first_page":"7","last_page":"11"},"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":0.9878000020980835,"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":0.9878000020980835,"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":0.9404000043869019,"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/mathematics","display_name":"Mathematics","score":0.8685864210128784},{"id":"https://openalex.org/keywords/disjoint-sets","display_name":"Disjoint sets","score":0.8595778346061707},{"id":"https://openalex.org/keywords/constant","display_name":"Constant (computer programming)","score":0.718859076499939},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6923342943191528},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.5521020293235779},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.09235811233520508}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8685864210128784},{"id":"https://openalex.org/C45340560","wikidata":"https://www.wikidata.org/wiki/Q215382","display_name":"Disjoint sets","level":2,"score":0.8595778346061707},{"id":"https://openalex.org/C2777027219","wikidata":"https://www.wikidata.org/wiki/Q1284190","display_name":"Constant (computer programming)","level":2,"score":0.718859076499939},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6923342943191528},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.5521020293235779},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.09235811233520508},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0012-365x(90)90040-o","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0012-365x(90)90040-o","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":0,"referenced_works":[],"related_works":["https://openalex.org/W1971174658","https://openalex.org/W1979597421","https://openalex.org/W2007980826","https://openalex.org/W4245490552","https://openalex.org/W4225152035","https://openalex.org/W2099195351","https://openalex.org/W2061531152","https://openalex.org/W2478481870","https://openalex.org/W3031681467","https://openalex.org/W1553466895"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2014,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}