{"id":"https://openalex.org/W2004484670","doi":"https://doi.org/10.3166/ejc.17.162-171","title":"Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems","display_name":"Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems","publication_year":2011,"publication_date":"2011-01-01","ids":{"openalex":"https://openalex.org/W2004484670","doi":"https://doi.org/10.3166/ejc.17.162-171","mag":"2004484670"},"language":"en","primary_location":{"id":"doi:10.3166/ejc.17.162-171","is_oa":false,"landing_page_url":"https://doi.org/10.3166/ejc.17.162-171","pdf_url":null,"source":{"id":"https://openalex.org/S21401918","display_name":"European Journal of Control","issn_l":"0947-3580","issn":["0947-3580","1435-5671"],"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":"European Journal of Control","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/A5001719830","display_name":"Tomomichi Hagiwara","orcid":"https://orcid.org/0000-0002-9212-9551"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I4210140509","display_name":"Kyoto Katsura Hospital","ror":"https://ror.org/04w3ve464","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210140509"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Tomomichi Hagiwara","raw_affiliation_strings":["Department of Electrical Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto, Japan","institution_ids":["https://openalex.org/I4210140509","https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5069109642","display_name":"Kentaro Hirata","orcid":"https://orcid.org/0000-0003-3193-7843"},"institutions":[{"id":"https://openalex.org/I75917431","display_name":"Nara Institute of Science and Technology","ror":"https://ror.org/05bhada84","country_code":"JP","type":"education","lineage":["https://openalex.org/I75917431"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kentaro Hirata","raw_affiliation_strings":["Department of Information Systems, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Information Systems, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, Japan","institution_ids":["https://openalex.org/I75917431"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5001719830"],"corresponding_institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210140509"],"apc_list":{"value":2850,"currency":"USD","value_usd":2850},"apc_paid":null,"fwci":7.2212,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.96693155,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"17","issue":"2","first_page":"162","last_page":"171"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10046","display_name":"Stability and Control of Uncertain Systems","score":0.9991000294685364,"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"}},"topics":[{"id":"https://openalex.org/T10046","display_name":"Stability and Control of Uncertain Systems","score":0.9991000294685364,"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"}},{"id":"https://openalex.org/T11236","display_name":"Control Systems and Identification","score":0.9988999962806702,"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"}},{"id":"https://openalex.org/T11110","display_name":"Stability and Controllability of Differential Equations","score":0.9986000061035156,"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/discretization","display_name":"Discretization","score":0.746048629283905},{"id":"https://openalex.org/keywords/operator","display_name":"Operator (biology)","score":0.6610342860221863},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.6463401317596436},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.6242984533309937},{"id":"https://openalex.org/keywords/spectrum","display_name":"Spectrum (functional analysis)","score":0.5628657937049866},{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.5612847805023193},{"id":"https://openalex.org/keywords/dynamical-systems-theory","display_name":"Dynamical systems theory","score":0.510527491569519},{"id":"https://openalex.org/keywords/discrete-time-and-continuous-time","display_name":"Discrete time and continuous time","score":0.4830473065376282},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4732811152935028},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.43889206647872925},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.43555590510368347},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.4059930145740509},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.33481669425964355},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.26945269107818604},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.09789445996284485},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.06156608462333679}],"concepts":[{"id":"https://openalex.org/C73000952","wikidata":"https://www.wikidata.org/wiki/Q17007827","display_name":"Discretization","level":2,"score":0.746048629283905},{"id":"https://openalex.org/C17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","level":5,"score":0.6610342860221863},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.6463401317596436},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.6242984533309937},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.5628657937049866},{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.5612847805023193},{"id":"https://openalex.org/C79379906","wikidata":"https://www.wikidata.org/wiki/Q3174497","display_name":"Dynamical systems theory","level":2,"score":0.510527491569519},{"id":"https://openalex.org/C55689738","wikidata":"https://www.wikidata.org/wiki/Q15963867","display_name":"Discrete time and continuous time","level":2,"score":0.4830473065376282},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4732811152935028},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.43889206647872925},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.43555590510368347},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.4059930145740509},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.33481669425964355},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.26945269107818604},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09789445996284485},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.06156608462333679},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"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/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C158448853","wikidata":"https://www.wikidata.org/wiki/Q425218","display_name":"Repressor","level":4,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C86339819","wikidata":"https://www.wikidata.org/wiki/Q407384","display_name":"Transcription factor","level":3,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.3166/ejc.17.162-171","is_oa":false,"landing_page_url":"https://doi.org/10.3166/ejc.17.162-171","pdf_url":null,"source":{"id":"https://openalex.org/S21401918","display_name":"European Journal of Control","issn_l":"0947-3580","issn":["0947-3580","1435-5671"],"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":"European Journal of Control","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W658670873","https://openalex.org/W1506119886","https://openalex.org/W1518389014","https://openalex.org/W1538686203","https://openalex.org/W1588513474","https://openalex.org/W1965012201","https://openalex.org/W1969707545","https://openalex.org/W1978943241","https://openalex.org/W1988098342","https://openalex.org/W1998462963","https://openalex.org/W2000685938","https://openalex.org/W2014172170","https://openalex.org/W2024713406","https://openalex.org/W2034278445","https://openalex.org/W2037463672","https://openalex.org/W2037979297","https://openalex.org/W2041848341","https://openalex.org/W2049027894","https://openalex.org/W2068551947","https://openalex.org/W2072941337","https://openalex.org/W2076687762","https://openalex.org/W2079871064","https://openalex.org/W2084911649","https://openalex.org/W2100094952","https://openalex.org/W2103518790","https://openalex.org/W2121235260","https://openalex.org/W2121696515","https://openalex.org/W2140974698","https://openalex.org/W2156464932","https://openalex.org/W2158468393","https://openalex.org/W2171954187","https://openalex.org/W2172119888","https://openalex.org/W2172377330","https://openalex.org/W2333385373","https://openalex.org/W2416719968","https://openalex.org/W2467963231","https://openalex.org/W4251778899","https://openalex.org/W4301046466","https://openalex.org/W6621726870","https://openalex.org/W6631113699","https://openalex.org/W6683638326","https://openalex.org/W6702816727"],"related_works":["https://openalex.org/W2006251942","https://openalex.org/W2364741597","https://openalex.org/W1492103595","https://openalex.org/W1864774435","https://openalex.org/W946352265","https://openalex.org/W2033441375","https://openalex.org/W1573791870","https://openalex.org/W2963861547","https://openalex.org/W4302410868","https://openalex.org/W297019962"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}