{"id":"https://openalex.org/W1976895474","doi":"https://doi.org/10.1007/s10485-008-9164-1","title":"Weak Reflections and Weak Factorization Systems","display_name":"Weak Reflections and Weak Factorization Systems","publication_year":2008,"publication_date":"2008-10-10","ids":{"openalex":"https://openalex.org/W1976895474","doi":"https://doi.org/10.1007/s10485-008-9164-1","mag":"1976895474"},"language":"en","primary_location":{"id":"doi:10.1007/s10485-008-9164-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10485-008-9164-1","pdf_url":null,"source":{"id":"https://openalex.org/S148906134","display_name":"Applied Categorical Structures","issn_l":"0927-2852","issn":["0927-2852","1572-9095"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Categorical Structures","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/A5112334623","display_name":"Michel H\u00e9bert","orcid":null},"institutions":[{"id":"https://openalex.org/I80693520","display_name":"American University in Cairo","ror":"https://ror.org/0176yqn58","country_code":"EG","type":"education","lineage":["https://openalex.org/I80693520"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Michel H\u00e9bert","raw_affiliation_strings":["Department of Mathematics, The American University in Cairo, Box 2511, Cairo, Egypt","The American university in Cairo"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, The American University in Cairo, Box 2511, Cairo, Egypt","institution_ids":["https://openalex.org/I80693520"]},{"raw_affiliation_string":"The American university in Cairo","institution_ids":["https://openalex.org/I80693520"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5112334623"],"corresponding_institution_ids":["https://openalex.org/I80693520"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.07773188,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"19","issue":"1","first_page":"9","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10896","display_name":"Homotopy and Cohomology in Algebraic Topology","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"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/T10896","display_name":"Homotopy and Cohomology in Algebraic Topology","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"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/T11673","display_name":"Advanced Topics in Algebra","score":0.9990000128746033,"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":0.9987000226974487,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/adjunction","display_name":"Adjunction","score":0.9720826148986816},{"id":"https://openalex.org/keywords/factorization","display_name":"Factorization","score":0.9013231992721558},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7016182541847229},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.5596176981925964},{"id":"https://openalex.org/keywords/preprint","display_name":"Preprint","score":0.4768748879432678},{"id":"https://openalex.org/keywords/theory-of-computation","display_name":"Theory of computation","score":0.468845009803772},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.43837684392929077},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.3382115960121155},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.1472640037536621},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.08752980828285217}],"concepts":[{"id":"https://openalex.org/C2780580338","wikidata":"https://www.wikidata.org/wiki/Q577835","display_name":"Adjunction","level":2,"score":0.9720826148986816},{"id":"https://openalex.org/C187834632","wikidata":"https://www.wikidata.org/wiki/Q188804","display_name":"Factorization","level":2,"score":0.9013231992721558},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7016182541847229},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.5596176981925964},{"id":"https://openalex.org/C43169469","wikidata":"https://www.wikidata.org/wiki/Q580922","display_name":"Preprint","level":2,"score":0.4768748879432678},{"id":"https://openalex.org/C24858836","wikidata":"https://www.wikidata.org/wiki/Q844718","display_name":"Theory of computation","level":2,"score":0.468845009803772},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.43837684392929077},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3382115960121155},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.1472640037536621},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.08752980828285217},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s10485-008-9164-1","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10485-008-9164-1","pdf_url":null,"source":{"id":"https://openalex.org/S148906134","display_name":"Applied Categorical Structures","issn_l":"0927-2852","issn":["0927-2852","1572-9095"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Categorical Structures","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":26,"referenced_works":["https://openalex.org/W123087045","https://openalex.org/W1483027366","https://openalex.org/W1510078069","https://openalex.org/W1513965594","https://openalex.org/W1595870841","https://openalex.org/W1604983634","https://openalex.org/W1715524359","https://openalex.org/W1965707361","https://openalex.org/W1968271432","https://openalex.org/W1968431853","https://openalex.org/W1988612426","https://openalex.org/W2008533411","https://openalex.org/W2016415780","https://openalex.org/W2028193261","https://openalex.org/W2029919605","https://openalex.org/W2056183987","https://openalex.org/W2058519825","https://openalex.org/W2079655821","https://openalex.org/W2088027070","https://openalex.org/W2119032153","https://openalex.org/W2321359234","https://openalex.org/W2493333586","https://openalex.org/W2962698675","https://openalex.org/W4210569210","https://openalex.org/W4247560366","https://openalex.org/W6637504204"],"related_works":["https://openalex.org/W4287081207","https://openalex.org/W4214866974","https://openalex.org/W3177859674","https://openalex.org/W3196733042","https://openalex.org/W4293366716","https://openalex.org/W3091315172","https://openalex.org/W3154927745","https://openalex.org/W4386908134","https://openalex.org/W1976895474","https://openalex.org/W4387307425"],"abstract_inverted_index":null,"counts_by_year":[{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}