{"id":"https://openalex.org/A5116711330","orcid":"https://orcid.org/0009-0001-4353-4534","observed_orcids":["https://orcid.org/0009-0001-4353-4534"],"display_name":"Andrii Letuta","raw_author_names":["Andrii Letuta"],"full_name":"Andrii Letuta","works_count":3,"cited_by_count":5,"summary_stats":{"2yr_mean_citedness":1.6666666666666667,"h_index":2,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5116711330","orcid":"https://orcid.org/0009-0001-4353-4534","observed_orcids":["https://orcid.org/0009-0001-4353-4534"]},"affiliations":[{"institution":{"id":"https://openalex.org/I3129652094","ror":"https://ror.org/05bamwv87","display_name":"Ukrainian Engineering Pedagogics Academy","country_code":"UA","type":"education","lineage":["https://openalex.org/I3129652094"]},"years":[2026,2025]},{"institution":{"id":"https://openalex.org/I8765205","ror":"https://ror.org/03ftejk10","display_name":"V. N. Karazin Kharkiv National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I8765205"]},"years":[2026,2025]}],"last_known_institutions":[{"id":"https://openalex.org/I3129652094","ror":"https://ror.org/05bamwv87","display_name":"Ukrainian Engineering Pedagogics Academy","country_code":"UA","type":"education","lineage":["https://openalex.org/I3129652094"]},{"id":"https://openalex.org/I8765205","ror":"https://ror.org/03ftejk10","display_name":"V. N. Karazin Kharkiv National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I8765205"]}],"topics":[{"id":"https://openalex.org/T13806","display_name":"Mathematical and Computational Methods","count":3,"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/T11191","display_name":"Mathematical functions and polynomials","count":2,"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/T12404","display_name":"Mathematical Approximation and Integration","count":2,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"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/T10130","display_name":"Mathematics Education and Teaching Techniques","count":1,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T14508","display_name":"Vocational Education and Training","count":1,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12404","display_name":"Mathematical Approximation and Integration","value":3.08e-05,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"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/T11191","display_name":"Mathematical functions and polynomials","value":9.2e-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"}},{"id":"https://openalex.org/T13806","display_name":"Mathematical and Computational Methods","value":8.7e-06,"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/T14508","display_name":"Vocational Education and Training","value":2.3e-06,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10130","display_name":"Mathematics Education and Teaching Techniques","value":1.3e-06,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"x_concepts":[{"id":"127349201","wikidata":"https://www.wikidata.org/wiki/Q753445","display_name":"Numerical integration","score":0.8083000183105469},{"id":"151376022","wikidata":"https://www.wikidata.org/wiki/Q168698","display_name":"Exponential function","score":0.6425999999046326},{"id":"14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","score":0.5185999870300293},{"id":"134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","score":0.49729999899864197},{"id":"122383733","wikidata":"https://www.wikidata.org/wiki/Q865920","display_name":"Approximation error","score":0.2976999878883362}],"counts_by_year":[{"year":2025,"works_count":2,"oa_works_count":1,"cited_by_count":1},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":4}],"display_name_alternatives":["Andrii Letuta"],"block_key":"a letuta","works_api_url":"https://api.openalex.org/works?filter=author.id:A5116711330","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5116711330","updated_date":"2026-11-12T13:17:38","created_date":"2025-03-20T00:00:00"}