{"id":"https://openalex.org/W1496547571","doi":"https://doi.org/10.23919/ecc.2003.7086546","title":"Coprime factor reduction of H&lt;inf&gt;\u221e&lt;/inf&gt; controllers","display_name":"Coprime factor reduction of H&lt;inf&gt;\u221e&lt;/inf&gt; controllers","publication_year":2003,"publication_date":"2003-09-01","ids":{"openalex":"https://openalex.org/W1496547571","doi":"https://doi.org/10.23919/ecc.2003.7086546","mag":"1496547571"},"language":"en","primary_location":{"id":"doi:10.23919/ecc.2003.7086546","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc.2003.7086546","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 European Control Conference (ECC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5111942746","display_name":"A. Varga","orcid":null},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"A. Varga","raw_affiliation_strings":["German Aerospace Center, Institute of Robotics and System Dynamics, Wessling, Germany","German Aerospace Center, DLR - Oberpfaffenhofen, Institute of Robotics and System Dynamics, D-82234 Wessling, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center, Institute of Robotics and System Dynamics, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"German Aerospace Center, DLR - Oberpfaffenhofen, Institute of Robotics and System Dynamics, D-82234 Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5111942746"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":null,"apc_paid":null,"fwci":0.5164,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.63362541,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"3282","last_page":"3287"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11206","display_name":"Model Reduction and Neural Networks","score":1.0,"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":1.0,"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/T11236","display_name":"Control Systems and Identification","score":0.9976999759674072,"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/T11416","display_name":"Numerical methods for differential equations","score":0.9871000051498413,"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/coprime-integers","display_name":"Coprime integers","score":0.9207306504249573},{"id":"https://openalex.org/keywords/observability","display_name":"Observability","score":0.8214768171310425},{"id":"https://openalex.org/keywords/controllability","display_name":"Controllability","score":0.7678285837173462},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.706308126449585},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5955371260643005},{"id":"https://openalex.org/keywords/factorization","display_name":"Factorization","score":0.5216641426086426},{"id":"https://openalex.org/keywords/controller","display_name":"Controller (irrigation)","score":0.512050449848175},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4226151704788208},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3895290791988373},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.32685112953186035},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3059621751308441},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15514957904815674},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.09961840510368347}],"concepts":[{"id":"https://openalex.org/C23230895","wikidata":"https://www.wikidata.org/wiki/Q104752","display_name":"Coprime integers","level":2,"score":0.9207306504249573},{"id":"https://openalex.org/C36299963","wikidata":"https://www.wikidata.org/wiki/Q1369844","display_name":"Observability","level":2,"score":0.8214768171310425},{"id":"https://openalex.org/C48209547","wikidata":"https://www.wikidata.org/wiki/Q1331104","display_name":"Controllability","level":2,"score":0.7678285837173462},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.706308126449585},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5955371260643005},{"id":"https://openalex.org/C187834632","wikidata":"https://www.wikidata.org/wiki/Q188804","display_name":"Factorization","level":2,"score":0.5216641426086426},{"id":"https://openalex.org/C203479927","wikidata":"https://www.wikidata.org/wiki/Q5165939","display_name":"Controller (irrigation)","level":2,"score":0.512050449848175},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4226151704788208},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3895290791988373},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.32685112953186035},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3059621751308441},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15514957904815674},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.09961840510368347},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","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":1,"locations":[{"id":"doi:10.23919/ecc.2003.7086546","is_oa":false,"landing_page_url":"https://doi.org/10.23919/ecc.2003.7086546","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 European Control Conference (ECC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W132121323","https://openalex.org/W1544146109","https://openalex.org/W1544220281","https://openalex.org/W1545968661","https://openalex.org/W1868559974","https://openalex.org/W1969626918","https://openalex.org/W1992034083","https://openalex.org/W2000866130","https://openalex.org/W2023322178","https://openalex.org/W2064733273","https://openalex.org/W2105193327","https://openalex.org/W2105677558","https://openalex.org/W2114512726","https://openalex.org/W2137359358","https://openalex.org/W2144326820","https://openalex.org/W2167869078","https://openalex.org/W2567546103","https://openalex.org/W3195133498"],"related_works":["https://openalex.org/W2332386680","https://openalex.org/W1983142522","https://openalex.org/W1986570998","https://openalex.org/W2782529250","https://openalex.org/W2037921533","https://openalex.org/W2508171592","https://openalex.org/W2801563517","https://openalex.org/W2130864543","https://openalex.org/W2068126039","https://openalex.org/W2041749520"],"abstract_inverted_index":{"We":[0],"consider":[1],"the":[2,6,46,49,63,66,85],"efficient":[3],"solution":[4],"of":[5,28,48,62,65],"coprime":[7,32,42,88],"factorization":[8],"based":[9,90],"H\u221econtroller":[10],"approximation":[11],"problems":[12],"by":[13,58],"using":[14],"frequency-weighted":[15,29,50],"balancing":[16,86],"related":[17,87],"model":[18,91],"reduction":[19,34,44],"approaches.":[20],"It":[21],"is":[22],"shown":[23],"that":[24],"for":[25,38,84],"a":[26,39],"class":[27],"performance":[30],"preserving":[31],"factor":[33,43],"as":[35,37],"well":[36],"relative":[40],"error":[41],"method,":[45],"computation":[47],"controllability":[51],"and":[52,80],"observability":[53],"grammians":[54],"can":[55,71],"be":[56,72],"done":[57],"solving":[59],"Lyapunov":[60],"equations":[61],"order":[64],"controller.":[67],"The":[68],"new":[69],"approach":[70],"used":[73],"in":[74],"conjunction":[75],"with":[76],"accuracy":[77],"enhancing":[78],"square-root":[79],"balancing-free":[81],"techniques":[82],"developed":[83],"factors":[89],"reduction.":[92]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
