{"id":"https://openalex.org/A5074596288","orcid":"https://orcid.org/0000-0002-1866-5217","observed_orcids":["https://orcid.org/0000-0002-1866-5217"],"display_name":"Abderrahim Guerfi","raw_author_names":["A. Guerfi","Abderrahim GUERF\u0130","Abderrahim Guerfi","Guerfi, Abderrahim"],"full_name":"Abderrahim GUERF\u0130","works_count":17,"cited_by_count":28,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5074596288","orcid":"https://orcid.org/0000-0002-1866-5217","observed_orcids":["https://orcid.org/0000-0002-1866-5217"]},"affiliations":[{"institution":{"id":"https://openalex.org/I108754898","ror":"https://ror.org/03sf55932","display_name":"Badji Mokhtar-Annaba University","country_code":"DZ","type":"education","lineage":["https://openalex.org/I108754898"]},"years":[2023,2022,2021,2020]},{"institution":{"id":"https://openalex.org/I114564095","ror":"https://ror.org/05amrd548","display_name":"University of Ouargla","country_code":"DZ","type":"education","lineage":["https://openalex.org/I114564095"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I1288970718","ror":"https://ror.org/04pn9tn44","display_name":"Mohamed-Cherif Messaadia University","country_code":"DZ","type":"education","lineage":["https://openalex.org/I1288970718"]},"years":[2022]}],"last_known_institutions":[{"id":"https://openalex.org/I108754898","ror":"https://ror.org/03sf55932","display_name":"Badji Mokhtar-Annaba University","country_code":"DZ","type":"education","lineage":["https://openalex.org/I108754898"]}],"topics":[{"id":"https://openalex.org/T10541","display_name":"Nonlinear Differential Equations Analysis","count":17,"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/T11777","display_name":"Fixed Point Theorems Analysis","count":10,"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/T12396","display_name":"Advanced Differential Equations and Dynamical Systems","count":9,"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/T12135","display_name":"Fuzzy Systems and Optimization","count":6,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"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/T10288","display_name":"Fractional Differential Equations Solutions","count":4,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"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/T11777","display_name":"Fixed Point Theorems Analysis","value":0.0001172,"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/T12135","display_name":"Fuzzy Systems and Optimization","value":6.67e-05,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"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","value":5.58e-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/T12396","display_name":"Advanced Differential Equations and Dynamical Systems","value":4.11e-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/T10288","display_name":"Fractional Differential Equations Solutions","value":2.93e-05,"subfield":{"id":"https://openalex.org/subfields/2611","display_name":"Modeling and Simulation"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.9128398895263672},{"id":"158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","score":0.696233868598938},{"id":"134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","score":0.5977346897125244},{"id":"28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","score":0.5719498991966248},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.23530948162078857}],"counts_by_year":[{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2020,"works_count":2,"oa_works_count":1,"cited_by_count":1},{"year":2021,"works_count":4,"oa_works_count":2,"cited_by_count":1},{"year":2022,"works_count":7,"oa_works_count":6,"cited_by_count":3},{"year":2023,"works_count":3,"oa_works_count":1,"cited_by_count":11},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":3}],"display_name_alternatives":["A. Guerfi","Abderrahim GUERF\u0130","Abderrahim Guerfi","Guerfi, Abderrahim"],"block_key":"a guerfi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5074596288","awards_count":0,"updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}