{"id":"https://openalex.org/W2072538249","doi":"https://doi.org/10.1007/bf01305233","title":"Extending partial isomorphisms of graphs","display_name":"Extending partial isomorphisms of graphs","publication_year":1992,"publication_date":"1992-12-01","ids":{"openalex":"https://openalex.org/W2072538249","doi":"https://doi.org/10.1007/bf01305233","mag":"2072538249"},"language":"en","primary_location":{"id":"doi:10.1007/bf01305233","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01305233","pdf_url":null,"source":{"id":"https://openalex.org/S72366220","display_name":"COMBINATORICA","issn_l":"0209-9683","issn":["0209-9683","1439-6912"],"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":"Combinatorica","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/A5053070582","display_name":"Ehud Hrushovski","orcid":"https://orcid.org/0000-0002-2761-6513"},"institutions":[{"id":"https://openalex.org/I4210090013","display_name":"Cambridge School","ror":"https://ror.org/006k1pa70","country_code":"PT","type":"education","lineage":["https://openalex.org/I4210090013"]},{"id":"https://openalex.org/I63966007","display_name":"Massachusetts Institute of Technology","ror":"https://ror.org/042nb2s44","country_code":"US","type":"education","lineage":["https://openalex.org/I63966007"]}],"countries":["PT","US"],"is_corresponding":true,"raw_author_name":"Ehud Hrushovski","raw_affiliation_strings":["Department of Mathematics, M.I.T., 02139, Cambridge, MA, U.S.A","Dept. of Mathematics, M.I.T., Cambridge, U.S.A"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, M.I.T., 02139, Cambridge, MA, U.S.A","institution_ids":["https://openalex.org/I63966007"]},{"raw_affiliation_string":"Dept. of Mathematics, M.I.T., Cambridge, U.S.A","institution_ids":["https://openalex.org/I4210090013"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5053070582"],"corresponding_institution_ids":["https://openalex.org/I4210090013","https://openalex.org/I63966007"],"apc_list":null,"apc_paid":null,"fwci":2.0405,"has_fulltext":false,"cited_by_count":161,"citation_normalized_percentile":{"value":0.86860068,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":"12","issue":"4","first_page":"411","last_page":"416"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11151","display_name":"Advanced Topology and Set Theory","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11151","display_name":"Advanced Topology and Set Theory","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2608","display_name":"Geometry and Topology"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11329","display_name":"Limits and Structures in Graph Theory","score":0.9735000133514404,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10899","display_name":"Advanced Operator Algebra Research","score":0.9480999708175659,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.9017055630683899},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.7289443016052246},{"id":"https://openalex.org/keywords/automorphism","display_name":"Automorphism","score":0.6702907085418701},{"id":"https://openalex.org/keywords/isomorphism","display_name":"Isomorphism (crystallography)","score":0.6335842609405518},{"id":"https://openalex.org/keywords/countable-set","display_name":"Countable set","score":0.567652702331543},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.5242481827735901},{"id":"https://openalex.org/keywords/transitive-relation","display_name":"Transitive relation","score":0.47303149104118347},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.46706423163414},{"id":"https://openalex.org/keywords/graph-automorphism","display_name":"Graph automorphism","score":0.4292455017566681},{"id":"https://openalex.org/keywords/voltage-graph","display_name":"Voltage graph","score":0.16122880578041077},{"id":"https://openalex.org/keywords/line-graph","display_name":"Line graph","score":0.14442002773284912}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.9017055630683899},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.7289443016052246},{"id":"https://openalex.org/C118712358","wikidata":"https://www.wikidata.org/wiki/Q782566","display_name":"Automorphism","level":2,"score":0.6702907085418701},{"id":"https://openalex.org/C203436722","wikidata":"https://www.wikidata.org/wiki/Q902950","display_name":"Isomorphism (crystallography)","level":3,"score":0.6335842609405518},{"id":"https://openalex.org/C110729354","wikidata":"https://www.wikidata.org/wiki/Q185478","display_name":"Countable set","level":2,"score":0.567652702331543},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.5242481827735901},{"id":"https://openalex.org/C191399111","wikidata":"https://www.wikidata.org/wiki/Q64861","display_name":"Transitive relation","level":2,"score":0.47303149104118347},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.46706423163414},{"id":"https://openalex.org/C6049932","wikidata":"https://www.wikidata.org/wiki/Q834981","display_name":"Graph automorphism","level":5,"score":0.4292455017566681},{"id":"https://openalex.org/C22149727","wikidata":"https://www.wikidata.org/wiki/Q7940747","display_name":"Voltage graph","level":4,"score":0.16122880578041077},{"id":"https://openalex.org/C203776342","wikidata":"https://www.wikidata.org/wiki/Q1378376","display_name":"Line graph","level":3,"score":0.14442002773284912},{"id":"https://openalex.org/C115624301","wikidata":"https://www.wikidata.org/wiki/Q895901","display_name":"Crystal structure","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf01305233","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01305233","pdf_url":null,"source":{"id":"https://openalex.org/S72366220","display_name":"COMBINATORICA","issn_l":"0209-9683","issn":["0209-9683","1439-6912"],"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":"Combinatorica","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":7,"referenced_works":["https://openalex.org/W23143470","https://openalex.org/W417925666","https://openalex.org/W2010961669","https://openalex.org/W2065734406","https://openalex.org/W2079393706","https://openalex.org/W2598159508","https://openalex.org/W4248209491"],"related_works":["https://openalex.org/W2054347355","https://openalex.org/W2621137221","https://openalex.org/W4226437520","https://openalex.org/W1997883919","https://openalex.org/W4287029620","https://openalex.org/W2091162291","https://openalex.org/W2264849344","https://openalex.org/W2905073546","https://openalex.org/W2187958446","https://openalex.org/W4295090891"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":24},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":10},{"year":2018,"cited_by_count":10},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":12}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
