{"id":"https://openalex.org/W1982810737","doi":"https://doi.org/10.1016/s0022-0000(71)80010-7","title":"Operation-preserving functions and autonomous factors of finite automata","display_name":"Operation-preserving functions and autonomous factors of finite automata","publication_year":1971,"publication_date":"1971-10-01","ids":{"openalex":"https://openalex.org/W1982810737","doi":"https://doi.org/10.1016/s0022-0000(71)80010-7","mag":"1982810737"},"language":"en","primary_location":{"id":"doi:10.1016/s0022-0000(71)80010-7","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0022-0000(71)80010-7","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0022000071800107/pdf","source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.sciencedirect.com/science/article/pii/S0022000071800107/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053642132","display_name":"Jerzy W. Grzymala\u2010Busse","orcid":"https://orcid.org/0000-0001-8799-5714"},"institutions":[{"id":"https://openalex.org/I46597724","display_name":"Pozna\u0144 University of Technology","ror":"https://ror.org/00p7p3302","country_code":"PL","type":"education","lineage":["https://openalex.org/I46597724"]}],"countries":["PL"],"is_corresponding":true,"raw_author_name":"Jerzy W. Grzymala-Busse","raw_affiliation_strings":["Department of Electrical Engineering, Technical University of Poznan, Poznan, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Technical University of Poznan, Poznan, Poland","institution_ids":["https://openalex.org/I46597724"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5053642132"],"corresponding_institution_ids":["https://openalex.org/I46597724"],"apc_list":{"value":2650,"currency":"USD","value_usd":2650},"apc_paid":null,"fwci":1.0916,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.74633183,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"5","issue":"5","first_page":"465","last_page":"474"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","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/T11567","display_name":"semigroups and automata theory","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/T12072","display_name":"Machine Learning and Algorithms","score":0.9843000173568726,"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/T11727","display_name":"Advanced Algebra and Logic","score":0.9825000166893005,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/two-way-deterministic-finite-automaton","display_name":"Two-way deterministic finite automaton","score":0.7165079116821289},{"id":"https://openalex.org/keywords/\u03c9-automaton","display_name":"\u03c9-automaton","score":0.6903874278068542},{"id":"https://openalex.org/keywords/deterministic-automaton","display_name":"Deterministic automaton","score":0.6826472878456116},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.6719166040420532},{"id":"https://openalex.org/keywords/nondeterministic-finite-automaton","display_name":"Nondeterministic finite automaton","score":0.6622019410133362},{"id":"https://openalex.org/keywords/timed-automaton","display_name":"Timed automaton","score":0.6550658345222473},{"id":"https://openalex.org/keywords/finite-state-machine","display_name":"Finite-state machine","score":0.6082711815834045},{"id":"https://openalex.org/keywords/deterministic-finite-automaton","display_name":"Deterministic finite automaton","score":0.6015896797180176},{"id":"https://openalex.org/keywords/quantum-finite-automata","display_name":"Quantum finite automata","score":0.5574728846549988},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.536388099193573},{"id":"https://openalex.org/keywords/finite-set","display_name":"Finite set","score":0.5361928939819336},{"id":"https://openalex.org/keywords/b\u00fcchi-automaton","display_name":"B\u00fcchi automaton","score":0.5221264958381653},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.484836220741272},{"id":"https://openalex.org/keywords/automata-theory","display_name":"Automata theory","score":0.4758170247077942},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.46350258588790894},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.460814893245697},{"id":"https://openalex.org/keywords/continuous-spatial-automaton","display_name":"Continuous spatial automaton","score":0.4276618957519531},{"id":"https://openalex.org/keywords/mobile-automaton","display_name":"Mobile automaton","score":0.41751962900161743},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3389586806297302},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32659226655960083},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.0748504102230072},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.04600563645362854}],"concepts":[{"id":"https://openalex.org/C139423837","wikidata":"https://www.wikidata.org/wiki/Q243800","display_name":"Two-way deterministic finite automaton","level":5,"score":0.7165079116821289},{"id":"https://openalex.org/C92710233","wikidata":"https://www.wikidata.org/wiki/Q291256","display_name":"\u03c9-automaton","level":5,"score":0.6903874278068542},{"id":"https://openalex.org/C194525867","wikidata":"https://www.wikidata.org/wiki/Q5265707","display_name":"Deterministic automaton","level":3,"score":0.6826472878456116},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.6719166040420532},{"id":"https://openalex.org/C158008952","wikidata":"https://www.wikidata.org/wiki/Q617295","display_name":"Nondeterministic finite automaton","level":4,"score":0.6622019410133362},{"id":"https://openalex.org/C30788636","wikidata":"https://www.wikidata.org/wiki/Q7805517","display_name":"Timed automaton","level":3,"score":0.6550658345222473},{"id":"https://openalex.org/C167822520","wikidata":"https://www.wikidata.org/wiki/Q176452","display_name":"Finite-state machine","level":2,"score":0.6082711815834045},{"id":"https://openalex.org/C104091681","wikidata":"https://www.wikidata.org/wiki/Q837528","display_name":"Deterministic finite automaton","level":3,"score":0.6015896797180176},{"id":"https://openalex.org/C174327141","wikidata":"https://www.wikidata.org/wiki/Q176837","display_name":"Quantum finite automata","level":4,"score":0.5574728846549988},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.536388099193573},{"id":"https://openalex.org/C162392398","wikidata":"https://www.wikidata.org/wiki/Q272404","display_name":"Finite set","level":2,"score":0.5361928939819336},{"id":"https://openalex.org/C165753454","wikidata":"https://www.wikidata.org/wiki/Q1020380","display_name":"B\u00fcchi automaton","level":4,"score":0.5221264958381653},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.484836220741272},{"id":"https://openalex.org/C116248031","wikidata":"https://www.wikidata.org/wiki/Q214526","display_name":"Automata theory","level":3,"score":0.4758170247077942},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.46350258588790894},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.460814893245697},{"id":"https://openalex.org/C75745568","wikidata":"https://www.wikidata.org/wiki/Q5165519","display_name":"Continuous spatial automaton","level":5,"score":0.4276618957519531},{"id":"https://openalex.org/C50348692","wikidata":"https://www.wikidata.org/wiki/Q6887056","display_name":"Mobile automaton","level":4,"score":0.41751962900161743},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3389586806297302},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32659226655960083},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0748504102230072},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.04600563645362854}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0022-0000(71)80010-7","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0022-0000(71)80010-7","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0022000071800107/pdf","source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/s0022-0000(71)80010-7","is_oa":true,"landing_page_url":"https://doi.org/10.1016/s0022-0000(71)80010-7","pdf_url":"https://www.sciencedirect.com/science/article/pii/S0022000071800107/pdf","source":{"id":"https://openalex.org/S141020589","display_name":"Journal of Computer and System Sciences","issn_l":"0022-0000","issn":["0022-0000","1090-2724"],"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":"Journal of Computer and System Sciences","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10","score":0.4099999964237213}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1982810737.pdf","grobid_xml":"https://content.openalex.org/works/W1982810737.grobid-xml"},"referenced_works_count":10,"referenced_works":["https://openalex.org/W1969988346","https://openalex.org/W1973900604","https://openalex.org/W1994333561","https://openalex.org/W2017239534","https://openalex.org/W2076015212","https://openalex.org/W2076069147","https://openalex.org/W2105311361","https://openalex.org/W4233079457","https://openalex.org/W6642639313","https://openalex.org/W6814826073"],"related_works":["https://openalex.org/W2541245786","https://openalex.org/W2042728676","https://openalex.org/W15413121","https://openalex.org/W9554130","https://openalex.org/W4297516501","https://openalex.org/W2175473110","https://openalex.org/W2141548906","https://openalex.org/W2134923509","https://openalex.org/W2113947097","https://openalex.org/W4378498717"],"abstract_inverted_index":null,"counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2026-07-31T08:31:51.225901","created_date":"2025-10-10T00:00:00"}