{"id":"https://openalex.org/W2039978011","doi":"https://doi.org/10.1016/0166-218x(85)90030-7","title":"N-free posets as generalizations of series-parallel posets","display_name":"N-free posets as generalizations of series-parallel posets","publication_year":1985,"publication_date":"1985-11-01","ids":{"openalex":"https://openalex.org/W2039978011","doi":"https://doi.org/10.1016/0166-218x(85)90030-7","mag":"2039978011"},"language":"en","primary_location":{"id":"doi:10.1016/0166-218x(85)90030-7","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0166-218x(85)90030-7","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"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 Applied 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/A5022152674","display_name":"Michel Habib","orcid":"https://orcid.org/0000-0002-8564-2314"},"institutions":[{"id":"https://openalex.org/I3019848993","display_name":"Mines Saint-\u00c9tienne","ror":"https://ror.org/05a1dws80","country_code":"FR","type":"education","lineage":["https://openalex.org/I203339264","https://openalex.org/I205703379","https://openalex.org/I3019848993"]}],"countries":["FR"],"is_corresponding":true,"raw_author_name":"M. Habib","raw_affiliation_strings":["Ecole des Mines de Saint-Etienne, 158 cours Fauriel, F42023 Saint-Etienne Cedex, France"],"affiliations":[{"raw_affiliation_string":"Ecole des Mines de Saint-Etienne, 158 cours Fauriel, F42023 Saint-Etienne Cedex, France","institution_ids":["https://openalex.org/I3019848993"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048233186","display_name":"Roland J\u00e9gou","orcid":null},"institutions":[{"id":"https://openalex.org/I3019848993","display_name":"Mines Saint-\u00c9tienne","ror":"https://ror.org/05a1dws80","country_code":"FR","type":"education","lineage":["https://openalex.org/I203339264","https://openalex.org/I205703379","https://openalex.org/I3019848993"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"R. Jegou","raw_affiliation_strings":["Ecole des Mines de Saint-Etienne, 158 cours Fauriel, F42023 Saint-Etienne Cedex, France"],"affiliations":[{"raw_affiliation_string":"Ecole des Mines de Saint-Etienne, 158 cours Fauriel, F42023 Saint-Etienne Cedex, France","institution_ids":["https://openalex.org/I3019848993"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5022152674"],"corresponding_institution_ids":["https://openalex.org/I3019848993"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":2.6138,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.90072727,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"12","issue":"3","first_page":"279","last_page":"291"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9988999962806702,"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"}},"topics":[{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":0.9988999962806702,"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"}},{"id":"https://openalex.org/T11673","display_name":"Advanced Topics in Algebra","score":0.996999979019165,"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/T10948","display_name":"Advanced Combinatorial Mathematics","score":0.9965000152587891,"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/star-product","display_name":"Star product","score":0.9324694871902466},{"id":"https://openalex.org/keywords/partially-ordered-set","display_name":"Partially ordered set","score":0.7727834582328796},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7272910475730896},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6127170920372009},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.48724666237831116},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.33280766010284424}],"concepts":[{"id":"https://openalex.org/C195800304","wikidata":"https://www.wikidata.org/wiki/Q7601281","display_name":"Star product","level":2,"score":0.9324694871902466},{"id":"https://openalex.org/C180645754","wikidata":"https://www.wikidata.org/wiki/Q474715","display_name":"Partially ordered set","level":2,"score":0.7727834582328796},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7272910475730896},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6127170920372009},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.48724666237831116},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.33280766010284424},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0166-218x(85)90030-7","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0166-218x(85)90030-7","pdf_url":null,"source":{"id":"https://openalex.org/S171741597","display_name":"Discrete Applied Mathematics","issn_l":"0166-218X","issn":["0166-218X","1872-6771"],"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 Applied 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":21,"referenced_works":["https://openalex.org/W12985356","https://openalex.org/W802599900","https://openalex.org/W956310959","https://openalex.org/W1532699273","https://openalex.org/W1569458199","https://openalex.org/W1988363261","https://openalex.org/W2003021478","https://openalex.org/W2059109315","https://openalex.org/W2061248217","https://openalex.org/W2073840571","https://openalex.org/W2077380997","https://openalex.org/W2079919815","https://openalex.org/W2082183871","https://openalex.org/W2106818977","https://openalex.org/W2247321008","https://openalex.org/W2325654786","https://openalex.org/W4210766026","https://openalex.org/W4233454414","https://openalex.org/W6646927440","https://openalex.org/W6665722327","https://openalex.org/W6691280251"],"related_works":["https://openalex.org/W3033029084","https://openalex.org/W4254064397","https://openalex.org/W2957182409","https://openalex.org/W4288282388","https://openalex.org/W3143802155","https://openalex.org/W2015965805","https://openalex.org/W2789323833","https://openalex.org/W1975173901","https://openalex.org/W3131828648","https://openalex.org/W4300914096"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}