{"id":"https://openalex.org/W2000535984","doi":"https://doi.org/10.1016/s0167-6911(02)00276-1","title":"Optimal control of systems with a unitary semigroup and with colocated control and observation","display_name":"Optimal control of systems with a unitary semigroup and with colocated control and observation","publication_year":2003,"publication_date":"2003-02-05","ids":{"openalex":"https://openalex.org/W2000535984","doi":"https://doi.org/10.1016/s0167-6911(02)00276-1","mag":"2000535984"},"language":"en","primary_location":{"id":"doi:10.1016/s0167-6911(02)00276-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-6911(02)00276-1","pdf_url":null,"source":{"id":"https://openalex.org/S56603566","display_name":"Systems & Control Letters","issn_l":"0167-6911","issn":["0167-6911","1872-7956"],"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":"Systems & Control 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/A5003773351","display_name":"George H. Weiss","orcid":"https://orcid.org/0000-0002-9524-2795"},"institutions":[{"id":"https://openalex.org/I47508984","display_name":"Imperial College London","ror":"https://ror.org/041kmwe10","country_code":"GB","type":"education","lineage":["https://openalex.org/I47508984"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"George Weiss","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, Imperial College of Science, Technology and Medicine, London UK, SW7 2BT"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, Imperial College of Science, Technology and Medicine, London UK, SW7 2BT","institution_ids":["https://openalex.org/I47508984"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5003773351"],"corresponding_institution_ids":["https://openalex.org/I47508984"],"apc_list":{"value":2750,"currency":"USD","value_usd":2750},"apc_paid":null,"fwci":4.9142,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.94131836,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"48","issue":"3-4","first_page":"329","last_page":"340"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11110","display_name":"Stability and Controllability of Differential Equations","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T11110","display_name":"Stability and Controllability of Differential Equations","score":1.0,"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"}},{"id":"https://openalex.org/T12100","display_name":"Advanced Mathematical Modeling in Engineering","score":0.9988999962806702,"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/T11205","display_name":"Numerical methods in inverse problems","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"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":0.7833771705627441},{"id":"https://openalex.org/keywords/hilbert-space","display_name":"Hilbert space","score":0.730505108833313},{"id":"https://openalex.org/keywords/semigroup","display_name":"Semigroup","score":0.6855595707893372},{"id":"https://openalex.org/keywords/optimal-control","display_name":"Optimal control","score":0.6022872924804688},{"id":"https://openalex.org/keywords/unitary-state","display_name":"Unitary state","score":0.5569467544555664},{"id":"https://openalex.org/keywords/operator","display_name":"Operator (biology)","score":0.5068767666816711},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.37307292222976685},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3437148928642273},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.34330302476882935},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.32258978486061096},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.18935784697532654},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.13827869296073914}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7833771705627441},{"id":"https://openalex.org/C62799726","wikidata":"https://www.wikidata.org/wiki/Q190056","display_name":"Hilbert space","level":2,"score":0.730505108833313},{"id":"https://openalex.org/C207405024","wikidata":"https://www.wikidata.org/wiki/Q207348","display_name":"Semigroup","level":2,"score":0.6855595707893372},{"id":"https://openalex.org/C91575142","wikidata":"https://www.wikidata.org/wiki/Q1971426","display_name":"Optimal control","level":2,"score":0.6022872924804688},{"id":"https://openalex.org/C67820243","wikidata":"https://www.wikidata.org/wiki/Q179164","display_name":"Unitary state","level":2,"score":0.5569467544555664},{"id":"https://openalex.org/C17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","level":5,"score":0.5068767666816711},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.37307292222976685},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3437148928642273},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.34330302476882935},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.32258978486061096},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.18935784697532654},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.13827869296073914},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"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/C158448853","wikidata":"https://www.wikidata.org/wiki/Q425218","display_name":"Repressor","level":4,"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/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","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/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/s0167-6911(02)00276-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-6911(02)00276-1","pdf_url":null,"source":{"id":"https://openalex.org/S56603566","display_name":"Systems & Control Letters","issn_l":"0167-6911","issn":["0167-6911","1872-7956"],"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":"Systems & Control Letters","raw_type":"journal-article"},{"id":"pmh:oai:spiral.imperial.ac.uk:10044/1/762","is_oa":false,"landing_page_url":"http://hdl.handle.net/10044/1/762","pdf_url":null,"source":{"id":"https://openalex.org/S4306401396","display_name":"Spiral (Imperial College London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I47508984","host_organization_name":"Imperial College London","host_organization_lineage":["https://openalex.org/I47508984"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"340","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W23244454","https://openalex.org/W30907860","https://openalex.org/W310881058","https://openalex.org/W362676439","https://openalex.org/W1522799773","https://openalex.org/W1538686203","https://openalex.org/W1572573517","https://openalex.org/W1929958170","https://openalex.org/W1974982975","https://openalex.org/W1985201527","https://openalex.org/W1992913239","https://openalex.org/W1997656700","https://openalex.org/W2002475330","https://openalex.org/W2049892514","https://openalex.org/W2061153144","https://openalex.org/W2090313589","https://openalex.org/W2178158283","https://openalex.org/W2356083104","https://openalex.org/W4248589278","https://openalex.org/W4285719527","https://openalex.org/W6634244364","https://openalex.org/W6726030939"],"related_works":["https://openalex.org/W1970313336","https://openalex.org/W4388175706","https://openalex.org/W3170865983","https://openalex.org/W2356126862","https://openalex.org/W2112928736","https://openalex.org/W4235576806","https://openalex.org/W3130054936","https://openalex.org/W3129877033","https://openalex.org/W4295350473","https://openalex.org/W1977278301"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}