{"id":"https://openalex.org/W2091469954","doi":"https://doi.org/10.1145/1562164.1562186","title":"The status of the P versus NP problem","display_name":"The status of the P versus NP problem","publication_year":2009,"publication_date":"2009-08-25","ids":{"openalex":"https://openalex.org/W2091469954","doi":"https://doi.org/10.1145/1562164.1562186","mag":"2091469954"},"language":"en","primary_location":{"id":"doi:10.1145/1562164.1562186","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1562164.1562186","pdf_url":null,"source":{"id":"https://openalex.org/S103482838","display_name":"Communications of the ACM","issn_l":"0001-0782","issn":["0001-0782","1557-7317"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Communications of the ACM","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/A5075191567","display_name":"Lance Fortnow","orcid":"https://orcid.org/0000-0002-2020-1358"},"institutions":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]},{"id":"https://openalex.org/I4210104270","display_name":"McCormick (United States)","ror":"https://ror.org/01ftbgh03","country_code":"US","type":"company","lineage":["https://openalex.org/I4210104270"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Lance Fortnow","raw_affiliation_strings":["Northwestern University's McCormick School of Engineering, Evanston, IL","Northwestern University's McCormick School of Engineering, Evanston, IL#TAB#"],"affiliations":[{"raw_affiliation_string":"Northwestern University's McCormick School of Engineering, Evanston, IL","institution_ids":["https://openalex.org/I111979921","https://openalex.org/I4210104270"]},{"raw_affiliation_string":"Northwestern University's McCormick School of Engineering, Evanston, IL#TAB#","institution_ids":["https://openalex.org/I111979921"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5075191567"],"corresponding_institution_ids":["https://openalex.org/I111979921","https://openalex.org/I4210104270"],"apc_list":null,"apc_paid":null,"fwci":19.8121,"has_fulltext":false,"cited_by_count":322,"citation_normalized_percentile":{"value":0.99653939,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"52","issue":"9","first_page":"78","last_page":"86"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9991999864578247,"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":0.9991999864578247,"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/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9990000128746033,"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/T10237","display_name":"Cryptography and Data Security","score":0.994700014591217,"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/computer-science","display_name":"Computer science","score":0.4486161768436432}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4486161768436432}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1562164.1562186","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1562164.1562186","pdf_url":null,"source":{"id":"https://openalex.org/S103482838","display_name":"Communications of the ACM","issn_l":"0001-0782","issn":["0001-0782","1557-7317"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Communications of the ACM","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W130806391","https://openalex.org/W201222650","https://openalex.org/W938539187","https://openalex.org/W1527197079","https://openalex.org/W1532594152","https://openalex.org/W1964053266","https://openalex.org/W1975442866","https://openalex.org/W1985123706","https://openalex.org/W1990061958","https://openalex.org/W1990941870","https://openalex.org/W1993138363","https://openalex.org/W2005938320","https://openalex.org/W2011039300","https://openalex.org/W2013815105","https://openalex.org/W2021736779","https://openalex.org/W2036265926","https://openalex.org/W2047778708","https://openalex.org/W2059608229","https://openalex.org/W2060270693","https://openalex.org/W2069767473","https://openalex.org/W2074207216","https://openalex.org/W2084652510","https://openalex.org/W2087038607","https://openalex.org/W2100008268","https://openalex.org/W2110871651","https://openalex.org/W2133715954","https://openalex.org/W2134140745","https://openalex.org/W2140270919","https://openalex.org/W2153417364","https://openalex.org/W2159341052","https://openalex.org/W2165142526","https://openalex.org/W2165813048","https://openalex.org/W2172831369","https://openalex.org/W2476096155","https://openalex.org/W2610179052","https://openalex.org/W2612879297","https://openalex.org/W2745281314","https://openalex.org/W2912080987","https://openalex.org/W2913688336","https://openalex.org/W3023478445","https://openalex.org/W3111297213","https://openalex.org/W3149536977","https://openalex.org/W4206104100","https://openalex.org/W4233756358","https://openalex.org/W4285719527","https://openalex.org/W4292081273"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2358668433","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W2382290278","https://openalex.org/W2350741829","https://openalex.org/W2530322880","https://openalex.org/W1596801655","https://openalex.org/W2359140296"],"abstract_inverted_index":{"It's":[0],"one":[1],"of":[2,7,17],"the":[3,15],"fundamental":[4],"mathematical":[5],"problems":[6],"our":[8],"time,":[9],"and":[10],"its":[11],"importance":[12],"grows":[13],"with":[14],"rise":[16],"powerful":[18],"computers.":[19]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":16},{"year":2024,"cited_by_count":49},{"year":2023,"cited_by_count":24},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":23},{"year":2020,"cited_by_count":24},{"year":2019,"cited_by_count":18},{"year":2018,"cited_by_count":16},{"year":2017,"cited_by_count":15},{"year":2016,"cited_by_count":22},{"year":2015,"cited_by_count":14},{"year":2014,"cited_by_count":14},{"year":2013,"cited_by_count":17},{"year":2012,"cited_by_count":18}],"updated_date":"2026-03-10T16:38:18.471706","created_date":"2025-10-10T00:00:00"}