{"id":"https://openalex.org/W116183970","doi":"https://doi.org/10.1051/ita/1993270504031","title":"Language classes defined by time-bounded relativised cellular automata","display_name":"Language classes defined by time-bounded relativised cellular automata","publication_year":1993,"publication_date":"1993-01-01","ids":{"openalex":"https://openalex.org/W116183970","doi":"https://doi.org/10.1051/ita/1993270504031","mag":"116183970"},"language":"en","primary_location":{"id":"doi:10.1051/ita/1993270504031","is_oa":true,"landing_page_url":"https://doi.org/10.1051/ita/1993270504031","pdf_url":"https://www.rairo-ita.org/articles/ita/pdf/1993/05/ita1993270504031.pdf","source":{"id":"https://openalex.org/S6941720","display_name":"RAIRO - Theoretical Informatics and Applications","issn_l":"0988-3754","issn":["0988-3754","1290-385X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319748","host_organization_name":"EDP Sciences","host_organization_lineage":["https://openalex.org/P4310319748"],"host_organization_lineage_names":["EDP Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"RAIRO - Theoretical Informatics and Applications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.rairo-ita.org/articles/ita/pdf/1993/05/ita1993270504031.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020709378","display_name":"Meena Mahajan","orcid":"https://orcid.org/0000-0002-9116-4398"},"institutions":[{"id":"https://openalex.org/I59611059","display_name":"Institute of Mathematical Sciences","ror":"https://ror.org/05078rg59","country_code":"IN","type":"facility","lineage":["https://openalex.org/I59611059"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Meena Mahajan","raw_affiliation_strings":["O The Institute of Mathematical Sciences, Madras 600 113, India. ("],"affiliations":[{"raw_affiliation_string":"O The Institute of Mathematical Sciences, Madras 600 113, India. (","institution_ids":["https://openalex.org/I59611059"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088534812","display_name":"Kamala Krithivasan","orcid":null},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"facility","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Kamala Krithivasan","raw_affiliation_strings":[") Department of Computer Science and Engineering, Indian Institute of Technology, Madras 600 036, India"],"affiliations":[{"raw_affiliation_string":") Department of Computer Science and Engineering, Indian Institute of Technology, Madras 600 036, India","institution_ids":["https://openalex.org/I24676775"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5020709378"],"corresponding_institution_ids":["https://openalex.org/I59611059"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.01349224,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"27","issue":"5","first_page":"403","last_page":"432"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12162","display_name":"Cellular Automata and Applications","score":0.9998999834060669,"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/T12162","display_name":"Cellular Automata and Applications","score":0.9998999834060669,"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/T11567","display_name":"semigroups and automata theory","score":0.9998000264167786,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9975000023841858,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/bounded-function","display_name":"Bounded function","score":0.5984939336776733},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5682782530784607},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.5576107501983643},{"id":"https://openalex.org/keywords/cellular-automaton","display_name":"Cellular automaton","score":0.5198591351509094},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.48045939207077026},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.41091349720954895},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.38717973232269287},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3673613667488098},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.34951627254486084}],"concepts":[{"id":"https://openalex.org/C34388435","wikidata":"https://www.wikidata.org/wiki/Q2267362","display_name":"Bounded function","level":2,"score":0.5984939336776733},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5682782530784607},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.5576107501983643},{"id":"https://openalex.org/C35527583","wikidata":"https://www.wikidata.org/wiki/Q189156","display_name":"Cellular automaton","level":2,"score":0.5198591351509094},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.48045939207077026},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.41091349720954895},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.38717973232269287},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3673613667488098},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34951627254486084},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1051/ita/1993270504031","is_oa":true,"landing_page_url":"https://doi.org/10.1051/ita/1993270504031","pdf_url":"https://www.rairo-ita.org/articles/ita/pdf/1993/05/ita1993270504031.pdf","source":{"id":"https://openalex.org/S6941720","display_name":"RAIRO - Theoretical Informatics and Applications","issn_l":"0988-3754","issn":["0988-3754","1290-385X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319748","host_organization_name":"EDP Sciences","host_organization_lineage":["https://openalex.org/P4310319748"],"host_organization_lineage_names":["EDP Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"RAIRO - Theoretical Informatics and Applications","raw_type":"journal-article"},{"id":"pmh:oai:edpsciences.org:dkey/10.1051/ita/1993270504031","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306400744","display_name":"Springer Link (Chiba Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I8488066","host_organization_name":"Chiba Institute of Technology","host_organization_lineage":["https://openalex.org/I8488066"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"https://doi.org/10.1051/ita/1993270504031","raw_type":"Text"},{"id":"pmh:oai:numdam.org:ITA_1993__27_5_403_0","is_oa":false,"landing_page_url":"http://www.numdam.org/item/ITA_1993__27_5_403_0/","pdf_url":null,"source":{"id":"https://openalex.org/S4306402264","display_name":"French digital mathematics library (Numdam)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I70900168","host_organization_name":"Universit\u00e9 Savoie Mont Blanc","host_organization_lineage":["https://openalex.org/I70900168"],"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":"Text"}],"best_oa_location":{"id":"doi:10.1051/ita/1993270504031","is_oa":true,"landing_page_url":"https://doi.org/10.1051/ita/1993270504031","pdf_url":"https://www.rairo-ita.org/articles/ita/pdf/1993/05/ita1993270504031.pdf","source":{"id":"https://openalex.org/S6941720","display_name":"RAIRO - Theoretical Informatics and Applications","issn_l":"0988-3754","issn":["0988-3754","1290-385X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319748","host_organization_name":"EDP Sciences","host_organization_lineage":["https://openalex.org/P4310319748"],"host_organization_lineage_names":["EDP Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"RAIRO - Theoretical Informatics and Applications","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.6399999856948853,"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education"}],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W116183970.pdf"},"referenced_works_count":15,"referenced_works":["https://openalex.org/W1591006154","https://openalex.org/W1956104149","https://openalex.org/W1979559409","https://openalex.org/W1982718233","https://openalex.org/W1989113687","https://openalex.org/W1995893260","https://openalex.org/W2003246942","https://openalex.org/W2020135021","https://openalex.org/W2038351263","https://openalex.org/W2065620770","https://openalex.org/W2078011493","https://openalex.org/W2103995270","https://openalex.org/W2402054513","https://openalex.org/W4229969393","https://openalex.org/W4243643814"],"related_works":["https://openalex.org/W2164619678","https://openalex.org/W2113544496","https://openalex.org/W1669105318","https://openalex.org/W2360313292","https://openalex.org/W9202957","https://openalex.org/W2067777412","https://openalex.org/W2359527201","https://openalex.org/W2353714615","https://openalex.org/W3091867061","https://openalex.org/W2141069492"],"abstract_inverted_index":{"Some":[0],"of":[1,33,105],"the":[2,31,80,88,99,116,119],"fundamental":[3],"problems":[4],"concerning":[5],"cellular":[6],"automata":[7],"{CA)":[8],"are":[9],"asfollows:":[10],"-Are":[11],"Hnear-time":[12,25],"CA":[13,21,26,35,61,81,89,94,107],"{ICA)":[14],"more":[15,22],"powerfu\u00ee":[16,23],"thon":[17,24],"real-time":[18],"CA(rCA)?-Are":[19],"nonlinear-time":[20],"?-Does":[27],"one-way":[28],"communication":[29],"reduce":[30],"power":[32],"a":[34,42,103],"?These":[36],"question":[37],"have":[38],"been":[39],"open":[40],"for":[41],"long":[43],"time.In":[44],"this":[45,122],"paper\\":[46],"we":[47,101],"address":[48],"these":[49],"questions":[50],"with":[51,92],"respect":[52],"to":[53],"tally":[54],"languages":[55],"in":[56,121],"relativised":[57,106],"worlds,":[58],"interpreting":[59],"timevarying":[60],"(TVCA)":[62],"as":[63],"oracle":[64],"machines.We":[65],"construct":[66],"-oracles":[67,85],"which":[68,79,86],"separate":[69],"rCAfrom":[70],"IC":[71,96],"A":[72,97],"and":[73,84,95,112,114],"ICAfrom":[74],"CA,":[75,113],"-oracle":[76],"classes":[77,82,90,109,120],"under":[78],"coincide,":[83],"leave":[87],"unchanged.Further,":[91],"r":[93],"at":[98],"base,":[100],"build":[102],"hierarchy":[104],"complexity":[108],"between":[110,118],"rCA":[111],"study":[115],"dependencies":[117],"hierarchy.":[123]},"counts_by_year":[],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}