{"id":"https://openalex.org/W2059576604","doi":"https://doi.org/10.1016/s0195-6698(87)80021-5","title":"A Reciprocity Relation for t-Designs","display_name":"A Reciprocity Relation for t-Designs","publication_year":1987,"publication_date":"1987-01-01","ids":{"openalex":"https://openalex.org/W2059576604","doi":"https://doi.org/10.1016/s0195-6698(87)80021-5","mag":"2059576604"},"language":"en","primary_location":{"id":"doi:10.1016/s0195-6698(87)80021-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0195-6698(87)80021-5","pdf_url":null,"source":{"id":"https://openalex.org/S204851967","display_name":"European Journal of Combinatorics","issn_l":"0195-6698","issn":["0195-6698","1095-9971"],"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":"European Journal of Combinatorics","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/A5111543827","display_name":"N.M. Singhi","orcid":null},"institutions":[{"id":"https://openalex.org/I11947397","display_name":"Tata Institute of Fundamental Research","ror":"https://ror.org/03ht1xw27","country_code":"IN","type":"education","lineage":["https://openalex.org/I11947397","https://openalex.org/I2799351866","https://openalex.org/I3149292468"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"N.M. Singhi","raw_affiliation_strings":["Tata institute of Fundamental research, Bombay, India"],"affiliations":[{"raw_affiliation_string":"Tata institute of Fundamental research, Bombay, India","institution_ids":["https://openalex.org/I11947397"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112913176","display_name":"S. S. Shrikhande","orcid":null},"institutions":[{"id":"https://openalex.org/I35409948","display_name":"Harish-Chandra Research Institute","ror":"https://ror.org/0165d9303","country_code":"IN","type":"education","lineage":["https://openalex.org/I35409948"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S.S. Shrikhande","raw_affiliation_strings":["Mehta Research Institute, Allahabad, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Mehta Research Institute, Allahabad, India#TAB#","institution_ids":["https://openalex.org/I35409948"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5111543827"],"corresponding_institution_ids":["https://openalex.org/I11947397"],"apc_list":{"value":2880,"currency":"USD","value_usd":2880},"apc_paid":null,"fwci":3.5776,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.93413978,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"8","issue":"1","first_page":"59","last_page":"68"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11703","display_name":"Rings, Modules, and Algebras","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"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/T11703","display_name":"Rings, Modules, and Algebras","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2602","display_name":"Algebra and Number Theory"},"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/T10287","display_name":"Algebraic structures and combinatorial models","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"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":0.9987000226974487,"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":0.8465088605880737},{"id":"https://openalex.org/keywords/reciprocity","display_name":"Reciprocity (cultural anthropology)","score":0.7238950133323669},{"id":"https://openalex.org/keywords/relation","display_name":"Relation (database)","score":0.6208728551864624},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.574936032295227},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3416953384876251},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.08951500058174133},{"id":"https://openalex.org/keywords/social-psychology","display_name":"Social psychology","score":0.07947242259979248},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.06842073798179626}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8465088605880737},{"id":"https://openalex.org/C169903001","wikidata":"https://www.wikidata.org/wiki/Q3264987","display_name":"Reciprocity (cultural anthropology)","level":2,"score":0.7238950133323669},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.6208728551864624},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.574936032295227},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3416953384876251},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.08951500058174133},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.07947242259979248},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.06842073798179626},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0195-6698(87)80021-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0195-6698(87)80021-5","pdf_url":null,"source":{"id":"https://openalex.org/S204851967","display_name":"European Journal of Combinatorics","issn_l":"0195-6698","issn":["0195-6698","1095-9971"],"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":"European Journal of Combinatorics","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":23,"referenced_works":["https://openalex.org/W30254118","https://openalex.org/W346417619","https://openalex.org/W1515761639","https://openalex.org/W1527392485","https://openalex.org/W1604413132","https://openalex.org/W1967451470","https://openalex.org/W1999506309","https://openalex.org/W2017023281","https://openalex.org/W2042364920","https://openalex.org/W2043253197","https://openalex.org/W2044422580","https://openalex.org/W2062650293","https://openalex.org/W2064504501","https://openalex.org/W2083655309","https://openalex.org/W2083882790","https://openalex.org/W2089276609","https://openalex.org/W2122550743","https://openalex.org/W2145201379","https://openalex.org/W2334322021","https://openalex.org/W2741728127","https://openalex.org/W4206811917","https://openalex.org/W4213139606","https://openalex.org/W6631538560"],"related_works":["https://openalex.org/W1979597421","https://openalex.org/W2007980826","https://openalex.org/W4245490552","https://openalex.org/W4225152035","https://openalex.org/W2061531152","https://openalex.org/W3002753104","https://openalex.org/W2077600819","https://openalex.org/W1587224694","https://openalex.org/W2911598644","https://openalex.org/W2042127053"],"abstract_inverted_index":null,"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
