{"id":"https://openalex.org/A5000389041","orcid":"https://orcid.org/0000-0002-2213-7185","observed_orcids":["https://orcid.org/0000-0002-2213-7185"],"display_name":"Hamadjam Abboubakar","raw_author_names":["Abboubakar Hamadjam","Abboubakar, Hamadjam","H. Abboubakar","Hamadjam Abboubakar"],"full_name":"Abboubakar, Hamadjam","works_count":57,"cited_by_count":981,"summary_stats":{"2yr_mean_citedness":5.12,"h_index":20,"i10_index":26},"ids":{"openalex":"https://openalex.org/A5000389041","orcid":"https://orcid.org/0000-0002-2213-7185","observed_orcids":["https://orcid.org/0000-0002-2213-7185"]},"affiliations":[{"institution":{"id":"https://openalex.org/I1331070479","ror":"https://ror.org/022zbs961","display_name":"Universit\u00e9 de Yaound\u00e9 I","country_code":"CM","type":"education","lineage":["https://openalex.org/I1331070479"]},"years":[2025,2022,2021]},{"institution":{"id":"https://openalex.org/I143396566","ror":"https://ror.org/05teb7b63","display_name":"F\u0131rat University","country_code":"TR","type":"education","lineage":["https://openalex.org/I143396566"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I163423212","ror":"https://ror.org/02zr5jr81","display_name":"University of Douala","country_code":"CM","type":"education","lineage":["https://openalex.org/I163423212"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I184693016","ror":"https://ror.org/00v408z34","display_name":"China Medical University","country_code":"TW","type":"education","lineage":["https://openalex.org/I184693016"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4210126829","ror":"https://ror.org/0368s4g32","display_name":"China Medical University Hospital","country_code":"TW","type":"healthcare","lineage":["https://openalex.org/I4210126829"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I59196294","ror":"https://ror.org/03gq1d339","display_name":"University of Ngaound\u00e9r\u00e9","country_code":"CM","type":"education","lineage":["https://openalex.org/I59196294"]},"years":[2026,2025,2024,2023,2022,2021,2020,2017,2016,2015]}],"last_known_institutions":[{"id":"https://openalex.org/I163423212","ror":"https://ror.org/02zr5jr81","display_name":"University of Douala","country_code":"CM","type":"education","lineage":["https://openalex.org/I163423212"]},{"id":"https://openalex.org/I59196294","ror":"https://ror.org/03gq1d339","display_name":"University of Ngaound\u00e9r\u00e9","country_code":"CM","type":"education","lineage":["https://openalex.org/I59196294"]}],"topics":[{"id":"https://openalex.org/T10482","display_name":"Mathematical and Theoretical Epidemiology and Ecology Models","count":47,"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/T10410","display_name":"COVID-19 epidemiological studies","count":32,"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"}},{"id":"https://openalex.org/T10288","display_name":"Fractional Differential Equations Solutions","count":18,"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"}},{"id":"https://openalex.org/T10541","display_name":"Nonlinear Differential Equations Analysis","count":14,"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/T10166","display_name":"Mosquito-borne diseases and control","count":9,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10482","display_name":"Mathematical and Theoretical Epidemiology and Ecology Models","value":0.000167,"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/T10410","display_name":"COVID-19 epidemiological studies","value":0.0001614,"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"}},{"id":"https://openalex.org/T10288","display_name":"Fractional Differential Equations Solutions","value":0.0001315,"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"}},{"id":"https://openalex.org/T12916","display_name":"COVID-19 impact on air quality","value":8.06e-05,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10541","display_name":"Nonlinear Differential Equations Analysis","value":4.59e-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"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.8147263526916504},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.7871788740158081},{"id":"28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","score":0.6706177592277527},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.4700915813446045},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.44670000672340393}],"counts_by_year":[{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2016,"works_count":2,"oa_works_count":2,"cited_by_count":2},{"year":2017,"works_count":3,"oa_works_count":3,"cited_by_count":10},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":12},{"year":2020,"works_count":4,"oa_works_count":3,"cited_by_count":16},{"year":2021,"works_count":8,"oa_works_count":3,"cited_by_count":149},{"year":2022,"works_count":4,"oa_works_count":4,"cited_by_count":122},{"year":2023,"works_count":9,"oa_works_count":8,"cited_by_count":126},{"year":2024,"works_count":10,"oa_works_count":8,"cited_by_count":156},{"year":2025,"works_count":7,"oa_works_count":3,"cited_by_count":237},{"year":2026,"works_count":8,"oa_works_count":5,"cited_by_count":139}],"display_name_alternatives":["Abboubakar Hamadjam","Abboubakar, Hamadjam","H. Abboubakar","Hamadjam Abboubakar"],"block_key":"h abboubakar","works_api_url":"https://api.openalex.org/works?filter=author.id:A5000389041","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}