{"id":"https://openalex.org/W1991012911","doi":"https://doi.org/10.1007/bf01269946","title":"Connected components of graphs and reverse mathematics","display_name":"Connected components of graphs and reverse mathematics","publication_year":1992,"publication_date":"1992-05-01","ids":{"openalex":"https://openalex.org/W1991012911","doi":"https://doi.org/10.1007/bf01269946","mag":"1991012911"},"language":"en","primary_location":{"id":"doi:10.1007/bf01269946","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01269946","pdf_url":null,"source":{"id":"https://openalex.org/S188076996","display_name":"Archive for Mathematical Logic","issn_l":"0933-5846","issn":["0933-5846","1432-0665"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Archive for Mathematical Logic","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/A5064590936","display_name":"Jeffry L. Hirst","orcid":"https://orcid.org/0000-0002-8273-8951"},"institutions":[{"id":"https://openalex.org/I430192","display_name":"Appalachian State University","ror":"https://ror.org/051m4vc48","country_code":"US","type":"education","lineage":["https://openalex.org/I430192"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Jeffry L. Hirst","raw_affiliation_strings":["Department of Mathematics, Appalachian State University, 28608, Boone, NC, USA","Department of Mathematics, Appalachian State University, Boone, USA"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Appalachian State University, 28608, Boone, NC, USA","institution_ids":["https://openalex.org/I430192"]},{"raw_affiliation_string":"Department of Mathematics, Appalachian State University, Boone, USA","institution_ids":["https://openalex.org/I430192"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5064590936"],"corresponding_institution_ids":["https://openalex.org/I430192"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.06817183,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"31","issue":"3","first_page":"183","last_page":"192"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10622","display_name":"Quantum Mechanics and Applications","score":0.9725000262260437,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10622","display_name":"Quantum Mechanics and Applications","score":0.9725000262260437,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10682","display_name":"Quantum Computing Algorithms and Architecture","score":0.9664000272750854,"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/T12002","display_name":"Computability, Logic, AI Algorithms","score":0.9214000105857849,"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/mathematics","display_name":"Mathematics","score":0.8189898729324341},{"id":"https://openalex.org/keywords/reverse-mathematics","display_name":"Reverse mathematics","score":0.7327364087104797},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.45376530289649963},{"id":"https://openalex.org/keywords/mathematics-education","display_name":"Mathematics education","score":0.3926420211791992},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3778766989707947},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.35080093145370483},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.18756607174873352},{"id":"https://openalex.org/keywords/axiom","display_name":"Axiom","score":0.11420333385467529},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.10700905323028564}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8189898729324341},{"id":"https://openalex.org/C127753061","wikidata":"https://www.wikidata.org/wiki/Q2005236","display_name":"Reverse mathematics","level":3,"score":0.7327364087104797},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.45376530289649963},{"id":"https://openalex.org/C145420912","wikidata":"https://www.wikidata.org/wiki/Q853077","display_name":"Mathematics education","level":1,"score":0.3926420211791992},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3778766989707947},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.35080093145370483},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.18756607174873352},{"id":"https://openalex.org/C167729594","wikidata":"https://www.wikidata.org/wiki/Q17736","display_name":"Axiom","level":2,"score":0.11420333385467529},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.10700905323028564}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf01269946","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01269946","pdf_url":null,"source":{"id":"https://openalex.org/S188076996","display_name":"Archive for Mathematical Logic","issn_l":"0933-5846","issn":["0933-5846","1432-0665"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Archive for Mathematical Logic","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":16,"referenced_works":["https://openalex.org/W13300039","https://openalex.org/W78146983","https://openalex.org/W83512845","https://openalex.org/W1455103837","https://openalex.org/W1522998756","https://openalex.org/W1987762167","https://openalex.org/W2058374948","https://openalex.org/W2061525581","https://openalex.org/W2075746519","https://openalex.org/W2102450922","https://openalex.org/W2106260240","https://openalex.org/W2320239868","https://openalex.org/W2321852024","https://openalex.org/W2326563584","https://openalex.org/W2478857688","https://openalex.org/W4231202900"],"related_works":["https://openalex.org/W2116579313","https://openalex.org/W1559233844","https://openalex.org/W4298328084","https://openalex.org/W2962823038","https://openalex.org/W2996782717","https://openalex.org/W2333271825","https://openalex.org/W2593141400","https://openalex.org/W2963236881","https://openalex.org/W2945500475","https://openalex.org/W2511934226"],"abstract_inverted_index":null,"counts_by_year":[{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"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"}
