{"id":"https://openalex.org/W2081315430","doi":"https://doi.org/10.1016/s0304-3975(99)00234-0","title":"Resolution of Hartmanis\u2019 conjecture for NL-hard sparse sets","display_name":"Resolution of Hartmanis\u2019 conjecture for NL-hard sparse sets","publication_year":2000,"publication_date":"2000-06-01","ids":{"openalex":"https://openalex.org/W2081315430","doi":"https://doi.org/10.1016/s0304-3975(99)00234-0","mag":"2081315430"},"language":"en","primary_location":{"id":"doi:10.1016/s0304-3975(99)00234-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(99)00234-0","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"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":"Theoretical 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/A5101599971","display_name":"Jin\u2010Yi Cai","orcid":"https://orcid.org/0009-0003-0675-6060"},"institutions":[{"id":"https://openalex.org/I63190737","display_name":"University at Buffalo, State University of New York","ror":"https://ror.org/01y64my43","country_code":"US","type":"education","lineage":["https://openalex.org/I63190737"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Jin-Yi Cai","raw_affiliation_strings":["Dept. of Computer Science, State University of New York, Buffalo, NY"],"affiliations":[{"raw_affiliation_string":"Dept. of Computer Science, State University of New York, Buffalo, NY","institution_ids":["https://openalex.org/I63190737"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5034629063","display_name":"D. Sivakumar","orcid":null},"institutions":[{"id":"https://openalex.org/I44461941","display_name":"University of Houston","ror":"https://ror.org/048sx0r50","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"D. Sivakumar","raw_affiliation_strings":["Department of Computer Science, University of Houston, Houston, TX"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Houston, Houston, TX","institution_ids":["https://openalex.org/I44461941"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5101599971"],"corresponding_institution_ids":["https://openalex.org/I63190737"],"apc_list":{"value":2690,"currency":"USD","value_usd":2690},"apc_paid":null,"fwci":1.4075,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.82229366,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"240","issue":"2","first_page":"257","last_page":"269"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","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/T10720","display_name":"Complexity and Algorithms in Graphs","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/T12288","display_name":"Optimization and Search Problems","score":0.9948999881744385,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10374","display_name":"Advanced Graph Theory Research","score":0.9947999715805054,"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/nondeterministic-algorithm","display_name":"Nondeterministic algorithm","score":0.870149552822113},{"id":"https://openalex.org/keywords/conjecture","display_name":"Conjecture","score":0.7628123760223389},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6753684878349304},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6042401790618896},{"id":"https://openalex.org/keywords/resolution","display_name":"Resolution (logic)","score":0.6027767658233643},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5630149841308594},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.39609575271606445},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.25018519163131714},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.0599084198474884}],"concepts":[{"id":"https://openalex.org/C176181172","wikidata":"https://www.wikidata.org/wiki/Q3490301","display_name":"Nondeterministic algorithm","level":2,"score":0.870149552822113},{"id":"https://openalex.org/C2780990831","wikidata":"https://www.wikidata.org/wiki/Q319141","display_name":"Conjecture","level":2,"score":0.7628123760223389},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6753684878349304},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6042401790618896},{"id":"https://openalex.org/C138268822","wikidata":"https://www.wikidata.org/wiki/Q1051925","display_name":"Resolution (logic)","level":2,"score":0.6027767658233643},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5630149841308594},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.39609575271606445},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.25018519163131714},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0599084198474884},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0304-3975(99)00234-0","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0304-3975(99)00234-0","pdf_url":null,"source":{"id":"https://openalex.org/S90727058","display_name":"Theoretical Computer Science","issn_l":"0304-3975","issn":["0304-3975","1879-2294"],"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":"Theoretical Computer Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10","score":0.44999998807907104}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W84297236","https://openalex.org/W1490340871","https://openalex.org/W1580836907","https://openalex.org/W1585544610","https://openalex.org/W1591764802","https://openalex.org/W1970629906","https://openalex.org/W1986804393","https://openalex.org/W2000169318","https://openalex.org/W2015323017","https://openalex.org/W2023336906","https://openalex.org/W2037469541","https://openalex.org/W2039334189","https://openalex.org/W2040185013","https://openalex.org/W2043113327","https://openalex.org/W2043360684","https://openalex.org/W2052788392","https://openalex.org/W2057512592","https://openalex.org/W2059657394","https://openalex.org/W2060270693","https://openalex.org/W2062881752","https://openalex.org/W2088705622","https://openalex.org/W2090186532","https://openalex.org/W2096427315","https://openalex.org/W2099666280","https://openalex.org/W2137423039","https://openalex.org/W2168244571","https://openalex.org/W3021839281","https://openalex.org/W6629535316","https://openalex.org/W6911322511"],"related_works":["https://openalex.org/W2029981401","https://openalex.org/W4212808623","https://openalex.org/W2951982256","https://openalex.org/W4301344670","https://openalex.org/W2740334431","https://openalex.org/W2013467167","https://openalex.org/W3123287700","https://openalex.org/W4293879768","https://openalex.org/W2123831997","https://openalex.org/W4300773042"],"abstract_inverted_index":null,"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
