{"id":"https://openalex.org/W2086506598","doi":"https://doi.org/10.1016/0097-3165(77)90017-6","title":"The weights of Hadamard matrices","display_name":"The weights of Hadamard matrices","publication_year":1977,"publication_date":"1977-11-01","ids":{"openalex":"https://openalex.org/W2086506598","doi":"https://doi.org/10.1016/0097-3165(77)90017-6","mag":"2086506598"},"language":"en","primary_location":{"id":"doi:10.1016/0097-3165(77)90017-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0097-3165(77)90017-6","pdf_url":null,"source":{"id":"https://openalex.org/S128556326","display_name":"Journal of Combinatorial Theory Series A","issn_l":"0097-3165","issn":["0097-3165","1096-0899"],"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":"Journal of Combinatorial Theory, Series A","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/A5080087320","display_name":"K. W. Schmidt","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"K.W Schmidt","raw_affiliation_strings":["Winnipeg, Manitoba, Canada"],"affiliations":[{"raw_affiliation_string":"Winnipeg, Manitoba, Canada","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033739741","display_name":"Edward T. H. Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I75381157","display_name":"Wilfrid Laurier University","ror":"https://ror.org/00fn7gb05","country_code":"CA","type":"education","lineage":["https://openalex.org/I75381157"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Edward T.H Wang","raw_affiliation_strings":["Wilfrid Laurier University, Waterloo, Ontario, Canada","Wilfrid laurier University, Waterloo, Ontario, Canada"],"affiliations":[{"raw_affiliation_string":"Wilfrid Laurier University, Waterloo, Ontario, Canada","institution_ids":["https://openalex.org/I75381157"]},{"raw_affiliation_string":"Wilfrid laurier University, Waterloo, Ontario, Canada","institution_ids":["https://openalex.org/I75381157"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5080087320"],"corresponding_institution_ids":[],"apc_list":{"value":3320,"currency":"USD","value_usd":3320},"apc_paid":null,"fwci":2.5246,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.89169981,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"23","issue":"3","first_page":"257","last_page":"263"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9995999932289124,"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"}},"topics":[{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9995999932289124,"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/T11673","display_name":"Advanced Topics in Algebra","score":0.9164000153541565,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/hadamard-transform","display_name":"Hadamard transform","score":0.8610284328460693},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.7045739889144897},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6648234128952026},{"id":"https://openalex.org/keywords/hadamard-matrix","display_name":"Hadamard matrix","score":0.6227741241455078},{"id":"https://openalex.org/keywords/complex-hadamard-matrix","display_name":"Complex Hadamard matrix","score":0.5339053869247437},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4785773754119873},{"id":"https://openalex.org/keywords/hadamards-inequality","display_name":"Hadamard's inequality","score":0.45157450437545776},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.11223030090332031},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.07407984137535095}],"concepts":[{"id":"https://openalex.org/C60292330","wikidata":"https://www.wikidata.org/wiki/Q1014065","display_name":"Hadamard transform","level":2,"score":0.8610284328460693},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7045739889144897},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6648234128952026},{"id":"https://openalex.org/C30463267","wikidata":"https://www.wikidata.org/wiki/Q1422682","display_name":"Hadamard matrix","level":3,"score":0.6227741241455078},{"id":"https://openalex.org/C6497535","wikidata":"https://www.wikidata.org/wiki/Q5156556","display_name":"Complex Hadamard matrix","level":4,"score":0.5339053869247437},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4785773754119873},{"id":"https://openalex.org/C31021346","wikidata":"https://www.wikidata.org/wiki/Q1365087","display_name":"Hadamard's inequality","level":4,"score":0.45157450437545776},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.11223030090332031},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.07407984137535095},{"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:10.1016/0097-3165(77)90017-6","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0097-3165(77)90017-6","pdf_url":null,"source":{"id":"https://openalex.org/S128556326","display_name":"Journal of Combinatorial Theory Series A","issn_l":"0097-3165","issn":["0097-3165","1096-0899"],"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":"Journal of Combinatorial Theory, Series A","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1957100706","https://openalex.org/W2011207942","https://openalex.org/W2034159266","https://openalex.org/W2077595427","https://openalex.org/W2322665062","https://openalex.org/W4239426483","https://openalex.org/W4244156215","https://openalex.org/W4251389169","https://openalex.org/W6653349357"],"related_works":["https://openalex.org/W1976224891","https://openalex.org/W2740594951","https://openalex.org/W1971692815","https://openalex.org/W3154819821","https://openalex.org/W2054788067","https://openalex.org/W4226106482","https://openalex.org/W2549862220","https://openalex.org/W4312637292","https://openalex.org/W1995950135","https://openalex.org/W2790370651"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}