{"id":"https://openalex.org/W2156125371","doi":"https://doi.org/10.1109/acc.2008.4586635","title":"On spectral conditions for positive realness of transfer function matrices","display_name":"On spectral conditions for positive realness of transfer function matrices","publication_year":2008,"publication_date":"2008-06-01","ids":{"openalex":"https://openalex.org/W2156125371","doi":"https://doi.org/10.1109/acc.2008.4586635","mag":"2156125371"},"language":"en","primary_location":{"id":"doi:10.1109/acc.2008.4586635","is_oa":false,"landing_page_url":"https://doi.org/10.1109/acc.2008.4586635","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 American Control Conference","raw_type":"proceedings-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/A5036373073","display_name":"Robert Shorten","orcid":"https://orcid.org/0000-0002-9239-2499"},"institutions":[{"id":"https://openalex.org/I157286207","display_name":"National University of Ireland, Maynooth","ror":"https://ror.org/048nfjm95","country_code":"IE","type":"education","lineage":["https://openalex.org/I157286207"]}],"countries":["IE"],"is_corresponding":true,"raw_author_name":"R. Shorten","raw_affiliation_strings":["Maynooth University#TAB#"],"affiliations":[{"raw_affiliation_string":"Maynooth University#TAB#","institution_ids":["https://openalex.org/I157286207"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091106135","display_name":"Paul Curran","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"P. Curran","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083704866","display_name":"Kai Wulff","orcid":"https://orcid.org/0009-0005-9362-6284"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K. Wulff","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013438544","display_name":"Christopher King","orcid":"https://orcid.org/0000-0001-9572-8122"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C. King","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5042465753","display_name":"E. Zeheb","orcid":"https://orcid.org/0000-0002-9190-2151"},"institutions":[{"id":"https://openalex.org/I157286207","display_name":"National University of Ireland, Maynooth","ror":"https://ror.org/048nfjm95","country_code":"IE","type":"education","lineage":["https://openalex.org/I157286207"]}],"countries":["IE"],"is_corresponding":false,"raw_author_name":"E. Zeheb","raw_affiliation_strings":["Maynooth University#TAB#"],"affiliations":[{"raw_affiliation_string":"Maynooth University#TAB#","institution_ids":["https://openalex.org/I157286207"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5036373073"],"corresponding_institution_ids":["https://openalex.org/I157286207"],"apc_list":null,"apc_paid":null,"fwci":0.8424,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.75407481,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1076","last_page":"1079"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11206","display_name":"Model Reduction and Neural Networks","score":0.9987000226974487,"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"}},"topics":[{"id":"https://openalex.org/T11206","display_name":"Model Reduction and Neural Networks","score":0.9987000226974487,"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"}},{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.9986000061035156,"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/T11236","display_name":"Control Systems and Identification","score":0.9951000213623047,"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/transfer-function","display_name":"Transfer function","score":0.7664871215820312},{"id":"https://openalex.org/keywords/eigenvalues-and-eigenvectors","display_name":"Eigenvalues and eigenvectors","score":0.7419683933258057},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.5290580987930298},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5233770608901978},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.5147733688354492},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.394057959318161},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3514038920402527},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.29590803384780884},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14888685941696167},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.111533522605896},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.062132835388183594},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.05886068940162659}],"concepts":[{"id":"https://openalex.org/C81299745","wikidata":"https://www.wikidata.org/wiki/Q334269","display_name":"Transfer function","level":2,"score":0.7664871215820312},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.7419683933258057},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.5290580987930298},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5233770608901978},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.5147733688354492},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.394057959318161},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3514038920402527},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.29590803384780884},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14888685941696167},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.111533522605896},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.062132835388183594},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.05886068940162659},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","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/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/acc.2008.4586635","is_oa":false,"landing_page_url":"https://doi.org/10.1109/acc.2008.4586635","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 American Control Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W86892992","https://openalex.org/W1554794490","https://openalex.org/W1572161815","https://openalex.org/W1573672270","https://openalex.org/W1588998206","https://openalex.org/W1603296454","https://openalex.org/W1972904014","https://openalex.org/W2021519564","https://openalex.org/W2023285936","https://openalex.org/W2036808929","https://openalex.org/W2062681803","https://openalex.org/W2073801507","https://openalex.org/W2074718261","https://openalex.org/W2093125373","https://openalex.org/W2104566714","https://openalex.org/W2143528125","https://openalex.org/W2143728353","https://openalex.org/W2154288482","https://openalex.org/W2156760241","https://openalex.org/W2164565834","https://openalex.org/W2277203344"],"related_works":["https://openalex.org/W2062626603","https://openalex.org/W2165749285","https://openalex.org/W2474979212","https://openalex.org/W2562455930","https://openalex.org/W2001036795","https://openalex.org/W127450631","https://openalex.org/W2154748900","https://openalex.org/W1601247381","https://openalex.org/W1975743536","https://openalex.org/W2088932963"],"abstract_inverted_index":{"Necessary":[0],"and":[1,25],"sufficient":[2],"conditions":[3,15],"for":[4,22],"positive":[5],"realness":[6],"of":[7],"general":[8],"transfer":[9,28],"function":[10,29],"matrices":[11],"are":[12],"derived.":[13],"These":[14],"can":[16],"be":[17],"checked":[18],"using":[19],"eigenvalue":[20],"solvers":[21],"both":[23],"proper":[24,27],"strictly":[26],"matrices.":[30]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}