{"id":"https://openalex.org/A5025940407","orcid":"https://orcid.org/0000-0002-8748-2086","observed_orcids":["https://orcid.org/0000-0002-8748-2086"],"display_name":"Liviu I. Ignat","raw_author_names":["Ignat, L.","Ignat, L. I.","Ignat, L.I.","Ignat, Liviu","Ignat, Liviu I.","Ignat, Liviu Ioan","L. I. Ignat","LIVIU I. IGNAT","Liviu I Ignat","Liviu I. Ignat","Liviu Ignat"],"full_name":"Ignat, Liviu I.","works_count":74,"cited_by_count":756,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":16,"i10_index":21},"ids":{"openalex":"https://openalex.org/A5025940407","orcid":"https://orcid.org/0000-0002-8748-2086","observed_orcids":["https://orcid.org/0000-0002-8748-2086"]},"affiliations":[{"institution":{"id":"https://openalex.org/I141595442","ror":"https://ror.org/02x2v6p15","display_name":"University of Bucharest","country_code":"RO","type":"education","lineage":["https://openalex.org/I141595442"]},"years":[2024,2023,2022,2020,2019,2018,2015,2014,2013]},{"institution":{"id":"https://openalex.org/I2802176441","ror":"https://ror.org/03b21sh32","display_name":"Basque Center for Applied Mathematics","country_code":"ES","type":"education","lineage":["https://openalex.org/I2802176441"]},"years":[2016,2014,2012,2011,2010]},{"institution":{"id":"https://openalex.org/I4405262991","ror":"https://ror.org/0122mh736","display_name":"IMAR - Institutul de Matematic\u0103 \u201eSimion Stoilow\u201d al Academiei Rom\u00e2ne","country_code":"RO","type":"education","lineage":["https://openalex.org/I4405262991","https://openalex.org/I58077936"]},"years":[2026,2024,2023,2022,2021,2020,2018,2017,2016,2015,2014,2012,2011,2010,2009,2008,2007]},{"institution":{"id":"https://openalex.org/I58077936","ror":"https://ror.org/0561n6946","display_name":"Romanian Academy","country_code":"RO","type":"archive","lineage":["https://openalex.org/I58077936"]},"years":[2026,2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2012,2011,2010,2009,2007]},{"institution":{"id":"https://openalex.org/I63634437","ror":"https://ror.org/01cby8j38","display_name":"Universidad Aut\u00f3noma de Madrid","country_code":"ES","type":"education","lineage":["https://openalex.org/I63634437"]},"years":[2009,2007,2006,2005,2004]}],"last_known_institutions":[{"id":"https://openalex.org/I4405262991","ror":"https://ror.org/0122mh736","display_name":"IMAR - Institutul de Matematic\u0103 \u201eSimion Stoilow\u201d al Academiei Rom\u00e2ne","country_code":"RO","type":"education","lineage":["https://openalex.org/I4405262991","https://openalex.org/I58077936"]},{"id":"https://openalex.org/I58077936","ror":"https://ror.org/0561n6946","display_name":"Romanian Academy","country_code":"RO","type":"archive","lineage":["https://openalex.org/I58077936"]}],"topics":[{"id":"https://openalex.org/T10194","display_name":"Nonlinear Partial Differential Equations","count":37,"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/T11654","display_name":"Advanced Mathematical Physics Problems","count":37,"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/T12589","display_name":"Differential Equations and Boundary Problems","count":22,"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":20,"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/T10339","display_name":"Advanced Numerical Methods in Computational Mathematics","count":17,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11654","display_name":"Advanced Mathematical Physics Problems","value":0.0002038,"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/T10194","display_name":"Nonlinear Partial Differential Equations","value":0.0001546,"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/T11416","display_name":"Numerical methods for differential equations","value":0.0001118,"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/T12589","display_name":"Differential Equations and Boundary Problems","value":7.65e-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/T11022","display_name":"Spectral Theory in Mathematical Physics","value":7.31e-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"}}],"x_concepts":[{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.8931910991668701},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.6741169095039368},{"id":"134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","score":0.6521999835968018},{"id":"28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","score":0.5343000292778015},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.2192712128162384}],"counts_by_year":[{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":2,"oa_works_count":1,"cited_by_count":66},{"year":2006,"works_count":2,"oa_works_count":1,"cited_by_count":9},{"year":2007,"works_count":5,"oa_works_count":1,"cited_by_count":174},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":31},{"year":2009,"works_count":4,"oa_works_count":4,"cited_by_count":174},{"year":2010,"works_count":4,"oa_works_count":2,"cited_by_count":20},{"year":2011,"works_count":5,"oa_works_count":5,"cited_by_count":93},{"year":2012,"works_count":5,"oa_works_count":4,"cited_by_count":44},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2014,"works_count":6,"oa_works_count":5,"cited_by_count":50},{"year":2015,"works_count":6,"oa_works_count":1,"cited_by_count":21},{"year":2016,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2017,"works_count":6,"oa_works_count":5,"cited_by_count":15},{"year":2018,"works_count":3,"oa_works_count":2,"cited_by_count":43},{"year":2019,"works_count":3,"oa_works_count":2,"cited_by_count":2},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":4},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2022,"works_count":2,"oa_works_count":2,"cited_by_count":4},{"year":2023,"works_count":4,"oa_works_count":4,"cited_by_count":5},{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2025,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":0}],"display_name_alternatives":["Ignat, L.","Ignat, L. I.","Ignat, L.I.","Ignat, Liviu","Ignat, Liviu I.","Ignat, Liviu Ioan","L. I. Ignat","LIVIU I. IGNAT","Liviu I Ignat","Liviu I. Ignat","Liviu Ignat"],"block_key":"l ignat","works_api_url":"https://api.openalex.org/works?filter=author.id:A5025940407","updated_date":"2026-10-15T12:44:11","created_date":"2016-06-24T00:00:00"}