{"id":"https://openalex.org/W2024920089","doi":"https://doi.org/10.1007/bf00181266","title":"Almost convex groups","display_name":"Almost convex groups","publication_year":1987,"publication_date":"1987-02-01","ids":{"openalex":"https://openalex.org/W2024920089","doi":"https://doi.org/10.1007/bf00181266","mag":"2024920089"},"language":"en","primary_location":{"id":"doi:10.1007/bf00181266","doi":"https://doi.org/10.1007/bf00181266","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00181266","pdf_url":null,"source":{"id":"https://openalex.org/S201224749","display_name":"Geometriae Dedicata","issn_l":"0046-5755","issn":["0046-5755","1572-9168"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-2","norway-1","poland-100","russia-white-list-3"],"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":"Geometriae Dedicata","raw_type":"journal-article"},"volume":null,"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/A5101458361","display_name":"J. W. Cannon","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"James W. Cannon","raw_affiliation_strings":["Department of Mathematics, Brigham Young University, 84602, Provo, Utah, USA","Department of Mathematics, Brigham Young University, Provo, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Brigham Young University, 84602, Provo, Utah, USA","institution_ids":["https://openalex.org/I100005738"]},{"raw_affiliation_string":"Department of Mathematics, Brigham Young University, Provo, USA","institution_ids":["https://openalex.org/I100005738"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101458361"],"corresponding_institution_ids":["https://openalex.org/I100005738"],"apc_list":{"value":2090,"currency":"USD","value_usd":2090},"apc_paid":null,"fwci":1.0831,"has_fulltext":false,"cited_by_count":74,"citation_normalized_percentile":{"value":0.77777778,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"22","issue":"2","first_page":"197","last_page":"210"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10304","display_name":"Geometric and Algebraic Topology","score":0.538100004196167,"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/T10304","display_name":"Geometric and Algebraic Topology","score":0.538100004196167,"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/T12504","display_name":"Mathematics and Applications","score":0.2531999945640564,"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/T13080","display_name":"Advanced Differential Geometry Research","score":0.03680000081658363,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/convex-hull","display_name":"convex hull","score":0.40299999713897705},{"id":"https://openalex.org/keywords/hyperbolic-groups","display_name":"hyperbolic groups","score":0.5490000247955322},{"id":"https://openalex.org/keywords/cat-0-spaces","display_name":"CAT(0) spaces","score":0.6309999823570251},{"id":"https://openalex.org/keywords/geometric-group-theory","display_name":"geometric group theory","score":0.4909999966621399}],"concepts":[{"id":"https://openalex.org/C206352148","wikidata":"https://www.wikidata.org/wiki/Q209306","display_name":"Hyperbolic geometry","level":3,"score":0.7984300255775452},{"id":"https://openalex.org/C68363185","wikidata":"https://www.wikidata.org/wiki/Q180969","display_name":"Algebraic geometry","level":2,"score":0.7167850136756897},{"id":"https://openalex.org/C185362025","wikidata":"https://www.wikidata.org/wiki/Q177409","display_name":"Projective geometry","level":3,"score":0.7055764198303223},{"id":"https://openalex.org/C192939610","wikidata":"https://www.wikidata.org/wiki/Q188444","display_name":"Differential geometry","level":2,"score":0.6990044713020325},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6812361478805542},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.48966720700263977},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.45858097076416016},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.45438823103904724},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.3109946846961975}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf00181266","doi":"https://doi.org/10.1007/bf00181266","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00181266","pdf_url":null,"source":{"id":"https://openalex.org/S201224749","display_name":"Geometriae Dedicata","issn_l":"0046-5755","issn":["0046-5755","1572-9168"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-2","norway-1","poland-100","russia-white-list-3"],"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":"Geometriae Dedicata","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[{"score":0.4000000059604645,"id":"https://metadata.un.org/sdg/13","display_name":"Climate action"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W423960821","https://openalex.org/W1510074667","https://openalex.org/W1516116134","https://openalex.org/W1980944648","https://openalex.org/W2026275056","https://openalex.org/W2028978432","https://openalex.org/W2037384880","https://openalex.org/W2052414950","https://openalex.org/W2082163287","https://openalex.org/W2314192334","https://openalex.org/W2942798256","https://openalex.org/W3146830351","https://openalex.org/W4292101339","https://openalex.org/W4300179712"],"related_works":["https://openalex.org/W2067660112","https://openalex.org/W4256184147","https://openalex.org/W2887166225","https://openalex.org/W180219860","https://openalex.org/W2044956558","https://openalex.org/W156833103","https://openalex.org/W2073400439","https://openalex.org/W4211222346","https://openalex.org/W2061153603","https://openalex.org/W2037157211"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2025-10-10T00:00:00"}
