{"id":"https://openalex.org/A5087046994","orcid":"https://orcid.org/0000-0003-0343-232X","observed_orcids":["https://orcid.org/0000-0003-0343-232X"],"display_name":"Volodymyr Derkach","raw_author_names":["Derkach, Volodymyr","V A Derkach","V. A. Derkach","V. Derkach","V.A. Derkach","Volodymyr Derkach"],"full_name":"Derkach, Volodymyr","works_count":50,"cited_by_count":1317,"summary_stats":{"2yr_mean_citedness":1.6666666666666667,"h_index":12,"i10_index":13},"ids":{"openalex":"https://openalex.org/A5087046994","orcid":"https://orcid.org/0000-0003-0343-232X","observed_orcids":["https://orcid.org/0000-0003-0343-232X"]},"affiliations":[{"institution":{"id":"https://openalex.org/I119449181","ror":"https://ror.org/01weqhp73","display_name":"Technische Universit\u00e4t Ilmenau","country_code":"DE","type":"education","lineage":["https://openalex.org/I119449181"]},"years":[2025,2024,2023,2022,2021,2020]},{"institution":{"id":"https://openalex.org/I146539003","ror":"https://ror.org/00xfvkq36","display_name":"Vasyl' Stus Donetsk National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I146539003"]},"years":[2026,2025,2024,2023,2022,2021,2020,2017,2016,2012]},{"institution":{"id":"https://openalex.org/I3131271221","ror":"https://ror.org/00batt813","display_name":"Dragomanov Ukrainian State University","country_code":"UA","type":"education","lineage":["https://openalex.org/I3131271221"]},"years":[2020,2017,2016]},{"institution":{"id":"https://openalex.org/I75645747","ror":"https://ror.org/00whe2089","display_name":"Donetsk National Technical University","country_code":"UA","type":"education","lineage":["https://openalex.org/I75645747"]},"years":[1992]}],"last_known_institutions":[{"id":"https://openalex.org/I146539003","ror":"https://ror.org/00xfvkq36","display_name":"Vasyl' Stus Donetsk National University","country_code":"UA","type":"education","lineage":["https://openalex.org/I146539003"]}],"topics":[{"id":"https://openalex.org/T11022","display_name":"Spectral Theory in Mathematical Physics","count":49,"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":44,"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/T10899","display_name":"Advanced Operator Algebra Research","count":13,"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/T11210","display_name":"Mathematical Analysis and Transform Methods","count":11,"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/T12589","display_name":"Differential Equations and Boundary Problems","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"}}],"topic_share":[{"id":"https://openalex.org/T10884","display_name":"Holomorphic and Operator Theory","value":0.0002557,"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","value":0.0001936,"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/T11262","display_name":"Quantum Mechanics and Non-Hermitian Physics","value":0.0001158,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10899","display_name":"Advanced Operator Algebra Research","value":8.16e-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/T11210","display_name":"Mathematical Analysis and Transform Methods","value":4.96e-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":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.9356456995010376},{"id":"17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","score":0.6684346199035645},{"id":"202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","score":0.6150417923927307},{"id":"136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","score":0.6075608730316162},{"id":"134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","score":0.550000011920929}],"counts_by_year":[{"year":1979,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":78},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":74},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":64},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2016,"works_count":2,"oa_works_count":2,"cited_by_count":56},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":60},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":58},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2020,"works_count":3,"oa_works_count":3,"cited_by_count":57},{"year":2021,"works_count":3,"oa_works_count":3,"cited_by_count":44},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":25},{"year":2023,"works_count":1,"oa_works_count":0,"cited_by_count":48},{"year":2024,"works_count":4,"oa_works_count":2,"cited_by_count":57},{"year":2025,"works_count":18,"oa_works_count":2,"cited_by_count":89},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":55}],"display_name_alternatives":["Derkach, Volodymyr","V A Derkach","V. A. Derkach","V. Derkach","V.A. Derkach","Volodymyr Derkach"],"block_key":"v derkach","works_api_url":"https://api.openalex.org/works?filter=author.id:A5087046994","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
