{"id":"https://openalex.org/W625494010","doi":null,"title":"On the zeros of solutions of a second-order linear differential equations","display_name":"On the zeros of solutions of a second-order linear differential equations","publication_year":1981,"publication_date":"1981-01-01","ids":{"openalex":"https://openalex.org/W625494010","mag":"625494010"},"language":"en","primary_location":{"id":"mag:625494010","doi":null,"is_oa":false,"landing_page_url":"https://ci.nii.ac.jp/naid/110000006025","pdf_url":null,"source":{"id":"https://openalex.org/S2764360930","display_name":"Mathematics reports, Toyama University","issn_l":"0386-832X","issn":["0386-832X"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310313209","host_organization_name":"University of Toyama","host_organization_lineage":["https://openalex.org/P4310313209"],"host_organization_lineage_names":["University of Toyama"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Mathematics reports, Toyama University","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5107244206","display_name":"Fozi M. Dannan","orcid":"https://orcid.org/0000-0002-3335-4310","observed_orcids":["https://orcid.org/0000-0002-3335-4310"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Fozi M. Dannan","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-3335-4310","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5107244206"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.05021117,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"29","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12812","display_name":"Meromorphic and Entire Functions","score":0.9824000000953674,"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"}},"topics":[{"id":"https://openalex.org/T12812","display_name":"Meromorphic and Entire Functions","score":0.9824000000953674,"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/T10541","display_name":"Nonlinear Differential Equations Analysis","score":0.008500000461935997,"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/T11191","display_name":"Mathematical functions and polynomials","score":0.0027000000700354576,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/zeros-of-solutions","display_name":"zeros of solutions","score":0.9909999966621399},{"id":"https://openalex.org/keywords/second-order-linear-differential-equations","display_name":"second-order linear differential equations","score":0.9890000224113464},{"id":"https://openalex.org/keywords/zeros-of-analytic-functions","display_name":"zeros of analytic functions","score":0.6480000019073486}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7991923093795776},{"id":"https://openalex.org/C13982400","wikidata":"https://www.wikidata.org/wiki/Q1129902","display_name":"Linear differential equation","level":3,"score":0.7068030834197998},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.680188775062561},{"id":"https://openalex.org/C93226319","wikidata":"https://www.wikidata.org/wiki/Q193137","display_name":"Differential (mechanical device)","level":2,"score":0.487836629152298},{"id":"https://openalex.org/C78045399","wikidata":"https://www.wikidata.org/wiki/Q11214","display_name":"Differential equation","level":2,"score":0.4670763313770294},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.4286811053752899},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.4073472321033478},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.39117518067359924},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0911484956741333},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.03900560736656189},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.038054049015045166},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:625494010","doi":null,"is_oa":false,"landing_page_url":"https://ci.nii.ac.jp/naid/110000006025","pdf_url":null,"source":{"id":"https://openalex.org/S2764360930","display_name":"Mathematics reports, Toyama University","issn_l":"0386-832X","issn":["0386-832X"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310313209","host_organization_name":"University of Toyama","host_organization_lineage":["https://openalex.org/P4310313209"],"host_organization_lineage_names":["University of Toyama"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Mathematics reports, Toyama University","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2060500639","https://openalex.org/W2325847373","https://openalex.org/W2069647513","https://openalex.org/W2032118454","https://openalex.org/W4313169964","https://openalex.org/W4240655156","https://openalex.org/W2122289145","https://openalex.org/W2032758607","https://openalex.org/W3102797304","https://openalex.org/W2039455251"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-10-10T17:16:08.811792","created_date":"2016-06-24T00:00:00"}
