{"id":"https://openalex.org/W2116016635","doi":"https://doi.org/10.1109/icassp.1982.1171814","title":"On block matrices with elements of special structure","display_name":"On block matrices with elements of special structure","publication_year":2005,"publication_date":"2005-03-24","ids":{"openalex":"https://openalex.org/W2116016635","doi":"https://doi.org/10.1109/icassp.1982.1171814","mag":"2116016635"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1982.1171814","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1982.1171814","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '82. IEEE International Conference on Acoustics, Speech, and Signal Processing","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/A5019314593","display_name":"N. Kalouptsidis","orcid":"https://orcid.org/0000-0001-7657-4586"},"institutions":[{"id":"https://openalex.org/I200777214","display_name":"National and Kapodistrian University of Athens","ror":"https://ror.org/04gnjpq42","country_code":"GR","type":"education","lineage":["https://openalex.org/I200777214"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"N. Kalouptsidis","raw_affiliation_strings":["Department of Electronics, University of Athens (NKUA), Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Electronics, University of Athens (NKUA), Athens, Greece","institution_ids":["https://openalex.org/I200777214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108429687","display_name":"G. Carayannis","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"G. Carayannis","raw_affiliation_strings":["Department of Electronics, National and Technical University of Athens, Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Electronics, National and Technical University of Athens, Athens, Greece","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047800576","display_name":"Dimitris G. Manolakis","orcid":"https://orcid.org/0000-0003-1341-1522"},"institutions":[{"id":"https://openalex.org/I200777214","display_name":"National and Kapodistrian University of Athens","ror":"https://ror.org/04gnjpq42","country_code":"GR","type":"education","lineage":["https://openalex.org/I200777214"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"D. Manolakis","raw_affiliation_strings":["Department of Electronics, University of Athens (NKUA), Athens, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Electronics, University of Athens (NKUA), Athens, Greece","institution_ids":["https://openalex.org/I200777214"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5019314593"],"corresponding_institution_ids":["https://openalex.org/I200777214"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.18205329,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"7","issue":null,"first_page":"1744","last_page":"1747"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11797","display_name":"graph theory and CDMA systems","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T11130","display_name":"Coding theory and cryptography","score":0.9952999949455261,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10849","display_name":"Finite Group Theory Research","score":0.9897000193595886,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"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/toeplitz-matrix","display_name":"Toeplitz matrix","score":0.8013226985931396},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.6290189027786255},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5756707191467285},{"id":"https://openalex.org/keywords/inversion","display_name":"Inversion (geology)","score":0.5694156885147095},{"id":"https://openalex.org/keywords/linear-system","display_name":"Linear system","score":0.5420151948928833},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5010004043579102},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.49877429008483887},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4954286813735962},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.36138877272605896},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.32045507431030273},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.1637026071548462},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.1389371156692505},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.13074341416358948},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.10377949476242065},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.10340839624404907}],"concepts":[{"id":"https://openalex.org/C147710293","wikidata":"https://www.wikidata.org/wiki/Q849428","display_name":"Toeplitz matrix","level":2,"score":0.8013226985931396},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.6290189027786255},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5756707191467285},{"id":"https://openalex.org/C1893757","wikidata":"https://www.wikidata.org/wiki/Q3653001","display_name":"Inversion (geology)","level":3,"score":0.5694156885147095},{"id":"https://openalex.org/C6802819","wikidata":"https://www.wikidata.org/wiki/Q1072174","display_name":"Linear system","level":2,"score":0.5420151948928833},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5010004043579102},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.49877429008483887},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4954286813735962},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.36138877272605896},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.32045507431030273},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.1637026071548462},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.1389371156692505},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.13074341416358948},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.10377949476242065},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.10340839624404907},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C109007969","wikidata":"https://www.wikidata.org/wiki/Q749565","display_name":"Structural basin","level":2,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1982.1171814","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1982.1171814","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '82. IEEE International Conference on Acoustics, Speech, and Signal Processing","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":13,"referenced_works":["https://openalex.org/W1967907744","https://openalex.org/W1981417294","https://openalex.org/W1987680281","https://openalex.org/W1996736088","https://openalex.org/W2035097277","https://openalex.org/W2050865647","https://openalex.org/W2062058725","https://openalex.org/W2076495042","https://openalex.org/W2082663475","https://openalex.org/W2162681512","https://openalex.org/W2320253350","https://openalex.org/W2330913512","https://openalex.org/W4241280266"],"related_works":["https://openalex.org/W2389462125","https://openalex.org/W2091997962","https://openalex.org/W151496359","https://openalex.org/W4220662591","https://openalex.org/W856465872","https://openalex.org/W1969863203","https://openalex.org/W1987843132","https://openalex.org/W1480644286","https://openalex.org/W2016131521","https://openalex.org/W2143448435"],"abstract_inverted_index":{"In":[0],"various":[1,97],"signal":[2],"processing":[3,56],"applications":[4],"one":[5],"is":[6,63,93],"often":[7,42],"confronted":[8],"with":[9,21],"aspects":[10],"such":[11,45],"as":[12,25,27,48],"linear":[13,73],"system":[14,74],"solution,":[15],"triangularization":[16],"or":[17,88],"inversion":[18,71],"of":[19,29,60,69,100,110],"matrices":[20,38],"special":[22],"block":[23,86,101],"structure":[24,104],"well":[26],"entries":[28],"particular":[30,79],"form.":[31],"Toeplitz,":[32,34],"Banded":[33],"circular":[35],"and":[36,53,72,102],"Hankel":[37],"provide":[39],"typical":[40],"examples":[41],"encountered":[43],"in":[44],"diverse":[46],"fields":[47],"image":[49],"processing,":[50],"computerized":[51],"tomography":[52],"other":[54],"array":[55],"applications.":[57],"The":[58],"purpose":[59],"this":[61],"paper":[62],"to":[64],"algorithmically":[65],"examine":[66],"the":[67,77,85,89,96,107,111],"issues":[68],"triangularization,":[70],"solution":[75],"when":[76],"above":[78,112],"structures":[80],"are":[81],"imposed":[82],"at":[83],"either":[84],"level":[87],"entry":[90,103],"level.":[91],"It":[92],"shown":[94],"that":[95],"resulting":[98],"combinations":[99],"considerably":[105],"reduce":[106],"computational":[108],"complexity":[109],"problems.":[113]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
