{"id":"https://openalex.org/W1993759218","doi":"https://doi.org/10.1016/s0304-3975(98)00031-0","title":"Counting non-isomorphic chord diagrams","display_name":"Counting non-isomorphic chord diagrams","publication_year":1998,"publication_date":"1998-09-01","ids":{"openalex":"https://openalex.org/W1993759218","doi":"https://doi.org/10.1016/s0304-3975(98)00031-0","mag":"1993759218"},"language":"en","primary_location":{"id":"doi:10.1016/s0304-3975(98)00031-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(98)00031-0","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"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":"Theoretical Computer Science","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/A5040359504","display_name":"Robert Cori","orcid":"https://orcid.org/0000-0001-9776-1196"},"institutions":[{"id":"https://openalex.org/I15057530","display_name":"Universit\u00e9 de Bordeaux","ror":"https://ror.org/057qpr032","country_code":"FR","type":"education","lineage":["https://openalex.org/I15057530"]},{"id":"https://openalex.org/I4210142254","display_name":"Laboratoire Bordelais de Recherche en Informatique","ror":"https://ror.org/03adqg323","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I15057530","https://openalex.org/I4210142254","https://openalex.org/I4210159245","https://openalex.org/I4210160189"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"Robert Cori","raw_affiliation_strings":["Labri, Universit\u00e9 Bordeaux 1, 351 Cours de la Lib\u00e9ration, 33405 Talence Cedex, France","Univ. Bordeaux, Talence, France#TAB#"],"affiliations":[{"raw_affiliation_string":"Labri, Universit\u00e9 Bordeaux 1, 351 Cours de la Lib\u00e9ration, 33405 Talence Cedex, France","institution_ids":["https://openalex.org/I15057530","https://openalex.org/I4210142254"]},{"raw_affiliation_string":"Univ. Bordeaux, Talence, France#TAB#","institution_ids":["https://openalex.org/I15057530"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111423754","display_name":"Michel Marcus","orcid":null},"institutions":[{"id":"https://openalex.org/I15057530","display_name":"Universit\u00e9 de Bordeaux","ror":"https://ror.org/057qpr032","country_code":"FR","type":"education","lineage":["https://openalex.org/I15057530"]},{"id":"https://openalex.org/I4210142254","display_name":"Laboratoire Bordelais de Recherche en Informatique","ror":"https://ror.org/03adqg323","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I15057530","https://openalex.org/I4210142254","https://openalex.org/I4210159245","https://openalex.org/I4210160189"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Michel Marcus","raw_affiliation_strings":["Labri, Universit\u00e9 Bordeaux 1, 351 Cours de la Lib\u00e9ration, 33405 Talence Cedex, France","Univ. Bordeaux, Talence, France#TAB#"],"affiliations":[{"raw_affiliation_string":"Labri, Universit\u00e9 Bordeaux 1, 351 Cours de la Lib\u00e9ration, 33405 Talence Cedex, France","institution_ids":["https://openalex.org/I15057530","https://openalex.org/I4210142254"]},{"raw_affiliation_string":"Univ. Bordeaux, Talence, France#TAB#","institution_ids":["https://openalex.org/I15057530"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5040359504"],"corresponding_institution_ids":["https://openalex.org/I15057530","https://openalex.org/I4210142254"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":0.4856,"has_fulltext":false,"cited_by_count":27,"citation_normalized_percentile":{"value":0.58123791,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"204","issue":"1-2","first_page":"55","last_page":"73"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.9998999834060669,"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/T10948","display_name":"Advanced Combinatorial Mathematics","score":0.9955999851226807,"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/T11567","display_name":"semigroups and automata theory","score":0.9878000020980835,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/mathematics","display_name":"Mathematics","score":0.7480858564376831},{"id":"https://openalex.org/keywords/chord","display_name":"Chord (peer-to-peer)","score":0.7314795255661011},{"id":"https://openalex.org/keywords/automorphism-group","display_name":"Automorphism group","score":0.6245372891426086},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5311103463172913},{"id":"https://openalex.org/keywords/automorphism","display_name":"Automorphism","score":0.5263624787330627},{"id":"https://openalex.org/keywords/genus","display_name":"Genus","score":0.4711165428161621},{"id":"https://openalex.org/keywords/toroid","display_name":"Toroid","score":0.438801646232605},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3506699800491333},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.163314551115036},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07984578609466553},{"id":"https://openalex.org/keywords/botany","display_name":"Botany","score":0.053021132946014404},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.051303744316101074}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7480858564376831},{"id":"https://openalex.org/C194147245","wikidata":"https://www.wikidata.org/wiki/Q1076368","display_name":"Chord (peer-to-peer)","level":2,"score":0.7314795255661011},{"id":"https://openalex.org/C2988750069","wikidata":"https://www.wikidata.org/wiki/Q60790315","display_name":"Automorphism group","level":3,"score":0.6245372891426086},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5311103463172913},{"id":"https://openalex.org/C118712358","wikidata":"https://www.wikidata.org/wiki/Q782566","display_name":"Automorphism","level":2,"score":0.5263624787330627},{"id":"https://openalex.org/C157369684","wikidata":"https://www.wikidata.org/wiki/Q34740","display_name":"Genus","level":2,"score":0.4711165428161621},{"id":"https://openalex.org/C15001198","wikidata":"https://www.wikidata.org/wiki/Q3241394","display_name":"Toroid","level":3,"score":0.438801646232605},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3506699800491333},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.163314551115036},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07984578609466553},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.053021132946014404},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.051303744316101074},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.0},{"id":"https://openalex.org/C82706917","wikidata":"https://www.wikidata.org/wiki/Q10251","display_name":"Plasma","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0304-3975(98)00031-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(98)00031-0","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"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":"Theoretical Computer Science","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":16,"referenced_works":["https://openalex.org/W1579444899","https://openalex.org/W1970060470","https://openalex.org/W1995036450","https://openalex.org/W2021355739","https://openalex.org/W2034573815","https://openalex.org/W2036078086","https://openalex.org/W2039613630","https://openalex.org/W2055622462","https://openalex.org/W2056893013","https://openalex.org/W2059291125","https://openalex.org/W2086114750","https://openalex.org/W2138515466","https://openalex.org/W2149293266","https://openalex.org/W4213106768","https://openalex.org/W6660683761","https://openalex.org/W6664471711"],"related_works":["https://openalex.org/W4302155387","https://openalex.org/W2085781584","https://openalex.org/W2949256963","https://openalex.org/W2545189445","https://openalex.org/W2115024785","https://openalex.org/W2949890955","https://openalex.org/W4289596368","https://openalex.org/W1543499813","https://openalex.org/W1678473343","https://openalex.org/W2390866431"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-10T14:07:55.174380","created_date":"2025-10-10T00:00:00"}