{"id":"https://openalex.org/W4324290577","doi":"https://doi.org/10.1109/tac.2023.3257173","title":"On Strictly Positive Real Improper Transfer Matrices","display_name":"On Strictly Positive Real Improper Transfer Matrices","publication_year":2023,"publication_date":"2023-03-14","ids":{"openalex":"https://openalex.org/W4324290577","doi":"https://doi.org/10.1109/tac.2023.3257173"},"language":"en","primary_location":{"id":"doi:10.1109/tac.2023.3257173","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tac.2023.3257173","pdf_url":null,"source":{"id":"https://openalex.org/S184954342","display_name":"IEEE Transactions on Automatic Control","issn_l":"0018-9286","issn":["0018-9286","1558-2523","2334-3303"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Automatic 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/A5005905901","display_name":"Augusto Ferrante","orcid":"https://orcid.org/0000-0002-9001-8962"},"institutions":[{"id":"https://openalex.org/I138689650","display_name":"University of Padua","ror":"https://ror.org/00240q980","country_code":"IT","type":"education","lineage":["https://openalex.org/I138689650"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Augusto Ferrante","raw_affiliation_strings":["Dept. of Information Engineering, University of Padova, Padova, Italy"],"affiliations":[{"raw_affiliation_string":"Dept. of Information Engineering, University of Padova, Padova, Italy","institution_ids":["https://openalex.org/I138689650"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021636076","display_name":"Mojtaba Hakimi-Moghaddam","orcid":"https://orcid.org/0000-0002-2900-6831"},"institutions":[{"id":"https://openalex.org/I4210106585","display_name":"Quchan University of Advanced Technology","ror":"https://ror.org/01bt5mj78","country_code":"IR","type":"education","lineage":["https://openalex.org/I4210106585"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Mojtaba Hakimi-Moghaddam","raw_affiliation_strings":["Department of Electrical Engineering, Quchan University of Technology, Quchan, Iran"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Quchan University of Technology, Quchan, Iran","institution_ids":["https://openalex.org/I4210106585"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5005905901"],"corresponding_institution_ids":["https://openalex.org/I138689650"],"apc_list":null,"apc_paid":null,"fwci":0.8068,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.74484912,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"69","issue":"1","first_page":"290","last_page":"294"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.9976000189781189,"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/T10792","display_name":"Matrix Theory and Algorithms","score":0.9976000189781189,"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/T10046","display_name":"Stability and Control of Uncertain Systems","score":0.9812999963760376,"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/T10963","display_name":"Advanced Optimization Algorithms Research","score":0.9771999716758728,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6711399555206299},{"id":"https://openalex.org/keywords/feedthrough","display_name":"Feedthrough","score":0.6496931910514832},{"id":"https://openalex.org/keywords/transfer-function","display_name":"Transfer function","score":0.6148430705070496},{"id":"https://openalex.org/keywords/transfer-matrix","display_name":"Transfer matrix","score":0.5645097494125366},{"id":"https://openalex.org/keywords/positive-definite-matrix","display_name":"Positive-definite matrix","score":0.5370013117790222},{"id":"https://openalex.org/keywords/linear-system","display_name":"Linear system","score":0.5201761722564697},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.4868018329143524},{"id":"https://openalex.org/keywords/transfer","display_name":"Transfer (computing)","score":0.44922226667404175},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.42075926065444946},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3670041859149933},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.32476305961608887},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.20437276363372803},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.11712974309921265}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6711399555206299},{"id":"https://openalex.org/C2777303812","wikidata":"https://www.wikidata.org/wiki/Q5441253","display_name":"Feedthrough","level":2,"score":0.6496931910514832},{"id":"https://openalex.org/C81299745","wikidata":"https://www.wikidata.org/wiki/Q334269","display_name":"Transfer function","level":2,"score":0.6148430705070496},{"id":"https://openalex.org/C122890649","wikidata":"https://www.wikidata.org/wiki/Q7834016","display_name":"Transfer matrix","level":2,"score":0.5645097494125366},{"id":"https://openalex.org/C49712288","wikidata":"https://www.wikidata.org/wiki/Q77601250","display_name":"Positive-definite matrix","level":3,"score":0.5370013117790222},{"id":"https://openalex.org/C6802819","wikidata":"https://www.wikidata.org/wiki/Q1072174","display_name":"Linear system","level":2,"score":0.5201761722564697},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.4868018329143524},{"id":"https://openalex.org/C2776175482","wikidata":"https://www.wikidata.org/wiki/Q1195816","display_name":"Transfer (computing)","level":2,"score":0.44922226667404175},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.42075926065444946},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3670041859149933},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.32476305961608887},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.20437276363372803},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.11712974309921265},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","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/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.0},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tac.2023.3257173","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tac.2023.3257173","pdf_url":null,"source":{"id":"https://openalex.org/S184954342","display_name":"IEEE Transactions on Automatic Control","issn_l":"0018-9286","issn":["0018-9286","1558-2523","2334-3303"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Automatic Control","raw_type":"journal-article"},{"id":"pmh:oai:www.research.unipd.it:11577/3505258","is_oa":false,"landing_page_url":"https://hdl.handle.net/11577/3505258","pdf_url":null,"source":{"id":"https://openalex.org/S4377196283","display_name":"Research Padua  Archive (University of Padua)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I138689650","host_organization_name":"University of Padua","host_organization_lineage":["https://openalex.org/I138689650"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7200000286102295,"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W575091709","https://openalex.org/W601351931","https://openalex.org/W1553483187","https://openalex.org/W1975663248","https://openalex.org/W2036977255","https://openalex.org/W2046874050","https://openalex.org/W2062681803","https://openalex.org/W2106177738","https://openalex.org/W2130238423","https://openalex.org/W2146972536","https://openalex.org/W2155744888","https://openalex.org/W2156760241","https://openalex.org/W2271183319","https://openalex.org/W2313550242","https://openalex.org/W2344137151","https://openalex.org/W2945030759","https://openalex.org/W3012079507","https://openalex.org/W3022209387","https://openalex.org/W4205669545","https://openalex.org/W4248816015","https://openalex.org/W4313061989"],"related_works":["https://openalex.org/W1986839414","https://openalex.org/W2048871732","https://openalex.org/W2357288154","https://openalex.org/W2033569341","https://openalex.org/W3103904424","https://openalex.org/W2070512270","https://openalex.org/W4390444039","https://openalex.org/W2364929389","https://openalex.org/W2064234232","https://openalex.org/W75826713"],"abstract_inverted_index":{"In":[0],"this":[1,59],"article,":[2],"we":[3],"consider":[4],"linear":[5],"systems":[6,29],"having":[7],"real":[8,23,28,135,139],"rational":[9,46],"transfer":[10,50,67,89],"matrices":[11],"that":[12,130],"may":[13],"be":[14,53],"improper.":[15],"We":[16],"investigate":[17],"the":[18,63,66,70,78,82,85,88,96,99,115,119,124,127],"properties":[19,64,97],"of":[20,65,87,95,98,103],"strictly":[21,26,54,133,137],"positive":[22,27,55,134,138],"and":[24,30,41,47,73,81,136],"weakly":[25,132],"their":[31],"connections.":[32],"Our":[33,91],"first":[34],"contribution":[35],"is":[36],"to":[37,52,109],"establish":[38],"a":[39,45,74],"necessary":[40],"sufficient":[42],"condition":[43,60,92],"for":[44,126],"possibly":[48],"improper":[49,116],"matrix":[51,68],"real.":[56],"Besides":[57],"stability,":[58],"only":[61],"involves":[62],"in":[69,114,123],"imaginary":[71],"axis":[72],"geometric":[75],"relation":[76],"between":[77],"feedthrough":[79],"term":[80],"residue":[83],"at":[84],"infinity":[86],"matrix.":[90],"connects":[93],"some":[94],"system":[100],"with":[101],"those":[102],"its":[104],"proper":[105,128],"part.":[106],"This":[107],"leads":[108],"our":[110],"second":[111],"contribution:":[112],"integrate,":[113],"setting,":[117],"all":[118],"several":[120],"conditions":[121],"derived":[122],"literature":[125],"case":[129],"discriminate":[131],"systems.":[140]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
