{"id":"https://openalex.org/W2052551059","doi":"https://doi.org/10.1016/s0893-9659(00)00091-4","title":"The oscillation of perturbed functional differential equations","display_name":"The oscillation of perturbed functional differential equations","publication_year":2000,"publication_date":"2000-11-01","ids":{"openalex":"https://openalex.org/W2052551059","doi":"https://doi.org/10.1016/s0893-9659(00)00091-4","mag":"2052551059"},"language":"en","primary_location":{"id":"doi:10.1016/s0893-9659(00)00091-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0893-9659(00)00091-4","pdf_url":null,"source":{"id":"https://openalex.org/S7571225","display_name":"Applied Mathematics Letters","issn_l":"0893-9659","issn":["0893-9659","1873-5452"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Mathematics Letters","raw_type":"journal-article"},"type":"article","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/A5112017813","display_name":"R.P. Agarwal","orcid":null},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"R.P. Agarwal","raw_affiliation_strings":["Department of Mathematics, National University of Singapore 10 Kent Ridge Crescent, Singapore 119260","Department of Mathematics National University of Singapore 10 Kent Ridge Crescent, Singapore 119260#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, National University of Singapore 10 Kent Ridge Crescent, Singapore 119260","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Department of Mathematics National University of Singapore 10 Kent Ridge Crescent, Singapore 119260#TAB#","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002188551","display_name":"Said R. Grace","orcid":"https://orcid.org/0000-0001-8783-5227"},"institutions":[{"id":"https://openalex.org/I145487455","display_name":"Cairo University","ror":"https://ror.org/03q21mh05","country_code":"EG","type":"education","lineage":["https://openalex.org/I145487455"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"S.R. Grace","raw_affiliation_strings":["Department of Engineering Mathematics, Faculty of Engineering Cairo University, Orman, Giza 12221, Egypt","Department of Engineering Mathematics, Faculty of Engineering Cairo University Orman Giza 12221 Egypt"],"affiliations":[{"raw_affiliation_string":"Department of Engineering Mathematics, Faculty of Engineering Cairo University, Orman, Giza 12221, Egypt","institution_ids":["https://openalex.org/I145487455"]},{"raw_affiliation_string":"Department of Engineering Mathematics, Faculty of Engineering Cairo University Orman Giza 12221 Egypt","institution_ids":["https://openalex.org/I145487455"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5002188551","https://openalex.org/A5112017813"],"corresponding_institution_ids":["https://openalex.org/I145487455","https://openalex.org/I165932596"],"apc_list":{"value":3540,"currency":"USD","value_usd":3540},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.16957164,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"13","issue":"8","first_page":"27","last_page":"30"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12100","display_name":"Advanced Mathematical Modeling in Engineering","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12100","display_name":"Advanced Mathematical Modeling in Engineering","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12727","display_name":"Differential Equations and Numerical Methods","score":0.9976999759674072,"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/T11206","display_name":"Model Reduction and Neural Networks","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8505005836486816},{"id":"https://openalex.org/keywords/oscillation","display_name":"Oscillation (cell signaling)","score":0.7597225904464722},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.6586201190948486},{"id":"https://openalex.org/keywords/differential-equation","display_name":"Differential equation","score":0.6394302248954773},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.5370086431503296},{"id":"https://openalex.org/keywords/delay-differential-equation","display_name":"Delay differential equation","score":0.47206810116767883},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.42154067754745483},{"id":"https://openalex.org/keywords/functional-differential-equation","display_name":"Functional differential equation","score":0.4153721332550049},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.05400806665420532}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8505005836486816},{"id":"https://openalex.org/C2778439541","wikidata":"https://www.wikidata.org/wiki/Q7106412","display_name":"Oscillation (cell signaling)","level":2,"score":0.7597225904464722},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.6586201190948486},{"id":"https://openalex.org/C78045399","wikidata":"https://www.wikidata.org/wiki/Q11214","display_name":"Differential equation","level":2,"score":0.6394302248954773},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.5370086431503296},{"id":"https://openalex.org/C147504518","wikidata":"https://www.wikidata.org/wiki/Q2146125","display_name":"Delay differential equation","level":3,"score":0.47206810116767883},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.42154067754745483},{"id":"https://openalex.org/C2778025262","wikidata":"https://www.wikidata.org/wiki/Q28406324","display_name":"Functional differential equation","level":3,"score":0.4153721332550049},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.05400806665420532},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/s0893-9659(00)00091-4","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0893-9659(00)00091-4","pdf_url":null,"source":{"id":"https://openalex.org/S7571225","display_name":"Applied Mathematics Letters","issn_l":"0893-9659","issn":["0893-9659","1873-5452"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Applied Mathematics Letters","raw_type":"journal-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/104332","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/104332","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1483576566","https://openalex.org/W1550383043","https://openalex.org/W1964240948","https://openalex.org/W1971014116","https://openalex.org/W2033632881"],"related_works":["https://openalex.org/W2390991069","https://openalex.org/W2348576774","https://openalex.org/W3168050185","https://openalex.org/W2362061707","https://openalex.org/W2352047463","https://openalex.org/W2150987529","https://openalex.org/W2386228494","https://openalex.org/W2093920133","https://openalex.org/W2072100489","https://openalex.org/W2356614427"],"abstract_inverted_index":null,"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}