{"id":"https://openalex.org/W2118675136","doi":"https://doi.org/10.1142/s0129054114400255","title":"ADJACENT ORDERED MULTI-PUSHDOWN SYSTEMS","display_name":"ADJACENT ORDERED MULTI-PUSHDOWN SYSTEMS","publication_year":2014,"publication_date":"2014-12-01","ids":{"openalex":"https://openalex.org/W2118675136","doi":"https://doi.org/10.1142/s0129054114400255","mag":"2118675136"},"language":"en","primary_location":{"id":"doi:10.1142/s0129054114400255","is_oa":false,"landing_page_url":"https://doi.org/10.1142/s0129054114400255","pdf_url":null,"source":{"id":"https://openalex.org/S68047077","display_name":"International Journal of Foundations of Computer Science","issn_l":"0129-0541","issn":["0129-0541","1793-6373"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319815","host_organization_name":"World Scientific","host_organization_lineage":["https://openalex.org/P4310319815"],"host_organization_lineage_names":["World Scientific"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Foundations of Computer Science","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/A5047278328","display_name":"Mohamed Faouzi Atig","orcid":"https://orcid.org/0000-0001-8229-3481"},"institutions":[{"id":"https://openalex.org/I123387679","display_name":"Uppsala University","ror":"https://ror.org/048a87296","country_code":"SE","type":"education","lineage":["https://openalex.org/I123387679"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"MOHAMED FAOUZI ATIG","raw_affiliation_strings":["Uppsala University, Sweden","Uppsala university, Sweden#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Uppsala University, Sweden","institution_ids":["https://openalex.org/I123387679"]},{"raw_affiliation_string":"Uppsala university, Sweden#TAB#","institution_ids":["https://openalex.org/I123387679"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103340333","display_name":"K. Narayan Kumar","orcid":null},"institutions":[{"id":"https://openalex.org/I19149307","display_name":"Chennai Mathematical Institute","ror":"https://ror.org/04zp24820","country_code":"IN","type":"education","lineage":["https://openalex.org/I19149307"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"K. NARAYAN KUMAR","raw_affiliation_strings":["Chennai Mathematical Institute, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chennai Mathematical Institute, India","institution_ids":["https://openalex.org/I19149307"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112913148","display_name":"Prakash Saivasan","orcid":null},"institutions":[{"id":"https://openalex.org/I19149307","display_name":"Chennai Mathematical Institute","ror":"https://ror.org/04zp24820","country_code":"IN","type":"education","lineage":["https://openalex.org/I19149307"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"PRAKASH SAIVASAN","raw_affiliation_strings":["Chennai Mathematical Institute, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chennai Mathematical Institute, India","institution_ids":["https://openalex.org/I19149307"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5047278328"],"corresponding_institution_ids":["https://openalex.org/I123387679"],"apc_list":null,"apc_paid":null,"fwci":2.9361,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.91395464,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"25","issue":"08","first_page":"1083","last_page":"1096"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10142","display_name":"Formal Methods in Verification","score":0.9997000098228455,"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/T10142","display_name":"Formal Methods in Verification","score":0.9997000098228455,"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/T10126","display_name":"Logic, programming, and type systems","score":0.9994999766349792,"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/T11567","display_name":"semigroups and automata theory","score":0.9961000084877014,"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/reachability","display_name":"Reachability","score":0.8730764985084534},{"id":"https://openalex.org/keywords/reachability-problem","display_name":"Reachability problem","score":0.705534815788269},{"id":"https://openalex.org/keywords/embedded-pushdown-automaton","display_name":"Embedded pushdown automaton","score":0.697536289691925},{"id":"https://openalex.org/keywords/decidability","display_name":"Decidability","score":0.6613269448280334},{"id":"https://openalex.org/keywords/model-checking","display_name":"Model checking","score":0.6329355835914612},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5948785543441772},{"id":"https://openalex.org/keywords/pushdown-automaton","display_name":"Pushdown automaton","score":0.5613105893135071},{"id":"https://openalex.org/keywords/generality","display_name":"Generality","score":0.5539457201957703},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.46123552322387695},{"id":"https://openalex.org/keywords/limit","display_name":"Limit (mathematics)","score":0.4358431398868561},{"id":"https://openalex.org/keywords/undecidable-problem","display_name":"Undecidable problem","score":0.4316784739494324},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.4135948717594147},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.40707603096961975},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.37655285000801086},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.34921908378601074},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.16587424278259277},{"id":"https://openalex.org/keywords/rule-based-machine-translation","display_name":"Rule-based machine translation","score":0.14826884865760803},{"id":"https://openalex.org/keywords/context-free-grammar","display_name":"Context-free grammar","score":0.14758336544036865},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.08879539370536804}],"concepts":[{"id":"https://openalex.org/C136643341","wikidata":"https://www.wikidata.org/wiki/Q1361526","display_name":"Reachability","level":2,"score":0.8730764985084534},{"id":"https://openalex.org/C2777669093","wikidata":"https://www.wikidata.org/wiki/Q17141570","display_name":"Reachability problem","level":3,"score":0.705534815788269},{"id":"https://openalex.org/C27034413","wikidata":"https://www.wikidata.org/wiki/Q5370010","display_name":"Embedded pushdown automaton","level":5,"score":0.697536289691925},{"id":"https://openalex.org/C153269930","wikidata":"https://www.wikidata.org/wiki/Q430001","display_name":"Decidability","level":2,"score":0.6613269448280334},{"id":"https://openalex.org/C110251889","wikidata":"https://www.wikidata.org/wiki/Q1569697","display_name":"Model checking","level":2,"score":0.6329355835914612},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5948785543441772},{"id":"https://openalex.org/C77944639","wikidata":"https://www.wikidata.org/wiki/Q751443","display_name":"Pushdown automaton","level":3,"score":0.5613105893135071},{"id":"https://openalex.org/C2780767217","wikidata":"https://www.wikidata.org/wiki/Q5532421","display_name":"Generality","level":2,"score":0.5539457201957703},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.46123552322387695},{"id":"https://openalex.org/C151201525","wikidata":"https://www.wikidata.org/wiki/Q177239","display_name":"Limit (mathematics)","level":2,"score":0.4358431398868561},{"id":"https://openalex.org/C192034797","wikidata":"https://www.wikidata.org/wiki/Q3502995","display_name":"Undecidable problem","level":3,"score":0.4316784739494324},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.4135948717594147},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.40707603096961975},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.37655285000801086},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34921908378601074},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.16587424278259277},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.14826884865760803},{"id":"https://openalex.org/C97212296","wikidata":"https://www.wikidata.org/wiki/Q338047","display_name":"Context-free grammar","level":3,"score":0.14758336544036865},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.08879539370536804},{"id":"https://openalex.org/C134083981","wikidata":"https://www.wikidata.org/wiki/Q1754022","display_name":"Tree-adjoining grammar","level":4,"score":0.0},{"id":"https://openalex.org/C542102704","wikidata":"https://www.wikidata.org/wiki/Q183257","display_name":"Psychotherapist","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1142/s0129054114400255","is_oa":false,"landing_page_url":"https://doi.org/10.1142/s0129054114400255","pdf_url":null,"source":{"id":"https://openalex.org/S68047077","display_name":"International Journal of Foundations of Computer Science","issn_l":"0129-0541","issn":["0129-0541","1793-6373"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319815","host_organization_name":"World Scientific","host_organization_lineage":["https://openalex.org/P4310319815"],"host_organization_lineage_names":["World Scientific"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Foundations of Computer Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.800000011920929,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2087046173","https://openalex.org/W2100532597","https://openalex.org/W3195365374"],"related_works":["https://openalex.org/W2020140696","https://openalex.org/W2584984136","https://openalex.org/W2591956186","https://openalex.org/W1553002193","https://openalex.org/W1805200712","https://openalex.org/W1563786920","https://openalex.org/W1993478572","https://openalex.org/W2161984463","https://openalex.org/W2489809986","https://openalex.org/W2119045600"],"abstract_inverted_index":{"Multi-pushdown":[0],"systems":[1],"are":[2,10],"formal":[3],"models":[4],"of":[5,22,83,106],"multi-threaded":[6],"programs.":[7],"As":[8],"they":[9],"Turing":[11],"powerful":[12],"in":[13,29],"their":[14],"full":[15],"generality,":[16],"several":[17],"decidable":[18],"subclasses,":[19],"constituting":[20],"under-approximations":[21],"the":[23,30,41,48,77,104],"original":[24],"system,":[25],"have":[26],"been":[27],"studied":[28],"recent":[31],"years.":[32],"Ordered":[33],"Multi-Pushdown":[34],"Systems":[35],"(OMPDSs)":[36],"impose":[37],"an":[38,110],"order":[39],"on":[40,64,76],"stacks":[42],"and":[43,94,97],"limit":[44],"pop":[45],"actions":[46],"to":[47],"lowest":[49,78],"non-empty":[50,79],"stack.":[51],"The":[52],"control":[53],"state":[54],"reachability":[55,93],"for":[56,92],"OMPDSs":[57,68],"is":[58],"2-ETIME-COMPLETE.":[59],"We":[60,87,102],"propose":[61],"a":[62],"restriction":[63],"OMPDSs,":[65],"called":[66],"Adjacent":[67],"(AOMPDS),":[69],"where":[70],"values":[71],"may":[72],"be":[73],"pushed":[74],"only":[75],"stack":[80],"or":[81],"one":[82],"its":[84],"two":[85],"neighbours.":[86],"describe":[88],"EXPTIME":[89],"decision":[90],"procedures":[91],"LTL":[95],"model-checking":[96],"establish":[98],"matching":[99],"lower":[100],"bounds.":[101],"demonstrate":[103],"utility":[105],"this":[107],"model":[108],"as":[109],"algorithmic":[111],"tool":[112],"via":[113],"optimal":[114],"reductions":[115],"from":[116],"other":[117],"models.":[118]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":4},{"year":2014,"cited_by_count":3}],"updated_date":"2026-05-21T09:19:25.381259","created_date":"2025-10-10T00:00:00"}