{"id":"https://openalex.org/W2965616070","doi":"https://doi.org/10.1504/ijdsde.2019.10022756","title":"Multiple periodic solutions for second order impulsive delay differential equations","display_name":"Multiple periodic solutions for second order impulsive delay differential equations","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2965616070","doi":"https://doi.org/10.1504/ijdsde.2019.10022756","mag":"2965616070"},"language":"en","primary_location":{"id":"doi:10.1504/ijdsde.2019.10022756","doi":"https://doi.org/10.1504/ijdsde.2019.10022756","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijdsde.2019.10022756","pdf_url":null,"source":{"id":"https://openalex.org/S115499645","display_name":"International Journal of Dynamical Systems and Differential Equations","issn_l":"1752-3583","issn":["1752-3583","1752-3591"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Dynamical Systems and Differential Equations","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"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/A5082777625","display_name":"Naima Daoudi-Merzagui","orcid":"https://orcid.org/0000-0002-8376-6807","observed_orcids":["https://orcid.org/0000-0002-8376-6807"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Naima Daoudi Merzagui","raw_affiliation_strings":["Department of Mathematics, Superior School of Applied Sciences, Tlemcen 13000, Algeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Superior School of Applied Sciences, Tlemcen 13000, Algeria","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072840013","display_name":"Fatima Dib","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I233209018","display_name":"University of Abou Bekr Belka\u00efd","ror":"https://ror.org/00jsjm362","country_code":"DZ","type":"education","lineage":["https://openalex.org/I233209018"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Fatima Dib","raw_affiliation_strings":["Department of Mathematics, University of Tlemcen, Tlemcen 13000, Algeria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, University of Tlemcen, Tlemcen 13000, Algeria","institution_ids":["https://openalex.org/I233209018"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10052981,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"9","issue":"3","first_page":"298","last_page":"298"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10541","display_name":"Nonlinear Differential Equations Analysis","score":0.9994999766349792,"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/T10541","display_name":"Nonlinear Differential Equations Analysis","score":0.9994999766349792,"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/T12396","display_name":"Advanced Differential Equations and Dynamical Systems","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"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/T11110","display_name":"Stability and Controllability of Differential Equations","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/periodic-solutions","display_name":"periodic solutions","score":0.8190000057220459},{"id":"https://openalex.org/keywords/second-order-delay-differential-equations","display_name":"second-order delay differential equations","score":0.8429999947547913},{"id":"https://openalex.org/keywords/impulsive-differential-equations","display_name":"impulsive differential equations","score":0.9950000047683716},{"id":"https://openalex.org/keywords/non-autonomous-systems","display_name":"non-autonomous systems","score":0.9129999876022339},{"id":"https://openalex.org/keywords/multiple-solutions","display_name":"multiplicity of solutions","score":0.8859999775886536},{"id":"https://openalex.org/keywords/variational-methods","display_name":"variational methods","score":0.8980000019073486}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.9270612001419067},{"id":"https://openalex.org/C147504518","wikidata":"https://www.wikidata.org/wiki/Q2146125","display_name":"Delay differential equation","level":3,"score":0.6557384729385376},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.5987675189971924},{"id":"https://openalex.org/C78045399","wikidata":"https://www.wikidata.org/wiki/Q11214","display_name":"Differential equation","level":2,"score":0.5077351331710815},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.5026752948760986},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.43545275926589966},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"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":"doi:10.1504/ijdsde.2019.10022756","doi":"https://doi.org/10.1504/ijdsde.2019.10022756","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijdsde.2019.10022756","pdf_url":null,"source":{"id":"https://openalex.org/S115499645","display_name":"International Journal of Dynamical Systems and Differential Equations","issn_l":"1752-3583","issn":["1752-3583","1752-3591"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-20","russia-white-list-3"],"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Dynamical Systems and Differential Equations","raw_type":"journal-article"}],"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/W2072369182","https://openalex.org/W2769051619","https://openalex.org/W2745190428","https://openalex.org/W2017185189","https://openalex.org/W2136582202","https://openalex.org/W2009011738","https://openalex.org/W2578371397","https://openalex.org/W2148054546","https://openalex.org/W2161800650","https://openalex.org/W2618579953"],"abstract_inverted_index":{"In":[0],"this":[1],"paper":[2],"we":[3],"discuss":[4],"the":[5],"existence":[6],"of":[7],"periodic":[8,22],"solutions":[9,23],"for":[10],"an":[11],"impulsive":[12],"nonautonomous":[13],"second":[14],"order":[15],"delay":[16],"differential":[17],"equation.":[18],"We":[19],"obtain":[20],"multiple":[21],"by":[24],"a":[25],"variational":[26],"approach.":[27]},"counts_by_year":[],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2019-08-13T00:00:00"}
