{"id":"https://openalex.org/A5061379585","orcid":null,"observed_orcids":[],"display_name":"Ezzeddine Chafai","raw_author_names":["Chafai, Ezzeddine","Ezzeddine CHAFAI","Ezzeddine Chafai"],"full_name":"Ezzeddine Chafai","works_count":12,"cited_by_count":51,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":2},"ids":{"openalex":"https://openalex.org/A5061379585","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I142608572","ror":"https://ror.org/04jt46d36","display_name":"Prince Sattam Bin Abdulaziz University","country_code":"SA","type":"education","lineage":["https://openalex.org/I142608572"]},"years":[2018]},{"institution":{"id":"https://openalex.org/I142899784","ror":"https://ror.org/04d4sd432","display_name":"University of Sfax","country_code":"TN","type":"education","lineage":["https://openalex.org/I142899784"]},"years":[2026,2024,2018,2017,2014,2013]},{"institution":{"id":"https://openalex.org/I4405252705","ror":"https://ror.org/01thp0k37","display_name":"Faculty of Sciences of Sfax","country_code":"TN","type":"education","lineage":["https://openalex.org/I142899784","https://openalex.org/I4405252705"]},"years":[2026,2024,2018,2017,2014,2013]},{"institution":{"id":"https://openalex.org/I8636806","ror":"https://ror.org/00dmpgj58","display_name":"University of Sousse","country_code":"TN","type":"education","lineage":["https://openalex.org/I8636806"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I142899784","ror":"https://ror.org/04d4sd432","display_name":"University of Sfax","country_code":"TN","type":"education","lineage":["https://openalex.org/I142899784"]},{"id":"https://openalex.org/I4405252705","ror":"https://ror.org/01thp0k37","display_name":"Faculty of Sciences of Sfax","country_code":"TN","type":"education","lineage":["https://openalex.org/I142899784","https://openalex.org/I4405252705"]},{"id":"https://openalex.org/I8636806","ror":"https://ror.org/00dmpgj58","display_name":"University of Sousse","country_code":"TN","type":"education","lineage":["https://openalex.org/I8636806"]}],"topics":[{"id":"https://openalex.org/T11545","display_name":"Advanced Banach Space Theory","count":12,"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/T10884","display_name":"Holomorphic and Operator Theory","count":10,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"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/T11022","display_name":"Spectral Theory in Mathematical Physics","count":9,"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/T11777","display_name":"Fixed Point Theorems Analysis","count":3,"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/T10541","display_name":"Nonlinear Differential Equations Analysis","count":1,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10884","display_name":"Holomorphic and Operator Theory","value":5.82e-05,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"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/T11545","display_name":"Advanced Banach Space Theory","value":5.09e-05,"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/T11022","display_name":"Spectral Theory in Mathematical Physics","value":3.56e-05,"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/T11777","display_name":"Fixed Point Theorems Analysis","value":3.51e-05,"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/T12062","display_name":"Approximation Theory and Sequence Spaces","value":7.1e-06,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"2776637919","wikidata":"https://www.wikidata.org/wiki/Q624380","display_name":"Descent (aeronautics)","score":0.9657232761383057},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.9146899580955505},{"id":"132954091","wikidata":"https://www.wikidata.org/wiki/Q194397","display_name":"Banach space","score":0.697600245475769},{"id":"202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","score":0.5036024451255798},{"id":"134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","score":0.399566113948822}],"counts_by_year":[{"year":2013,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2014,"works_count":2,"oa_works_count":1,"cited_by_count":1},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2018,"works_count":4,"oa_works_count":2,"cited_by_count":6},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":2}],"display_name_alternatives":["Chafai, Ezzeddine","Ezzeddine CHAFAI","Ezzeddine Chafai"],"block_key":"e chafai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5061379585","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}
