{"id":"https://openalex.org/W2094322818","doi":"https://doi.org/10.1007/bf01409969","title":"The differences between Kurepa trees and Jech-Kunen trees","display_name":"The differences between Kurepa trees and Jech-Kunen trees","publication_year":1993,"publication_date":"1993-09-01","ids":{"openalex":"https://openalex.org/W2094322818","doi":"https://doi.org/10.1007/bf01409969","mag":"2094322818"},"language":"en","primary_location":{"id":"doi:10.1007/bf01409969","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01409969","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/A5050539424","display_name":"Renling Jin","orcid":"https://orcid.org/0000-0002-1625-1539"},"institutions":[{"id":"https://openalex.org/I95457486","display_name":"University of California, Berkeley","ror":"https://ror.org/01an7q238","country_code":"US","type":"education","lineage":["https://openalex.org/I95457486"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Renling Jin","raw_affiliation_strings":["Department of Mathematics, University of California, 94720, Berkeley, CA, USA","Dept of Mathematics, University of California, Berkeley, USA"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, University of California, 94720, Berkeley, CA, USA","institution_ids":["https://openalex.org/I95457486"]},{"raw_affiliation_string":"Dept of Mathematics, University of California, Berkeley, USA","institution_ids":["https://openalex.org/I95457486"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5050539424"],"corresponding_institution_ids":["https://openalex.org/I95457486"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.1403,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.45257555,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"32","issue":"5","first_page":"369","last_page":"379"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11882","display_name":"Plant biochemistry and biosynthesis","score":0.2475000023841858,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11882","display_name":"Plant biochemistry and biosynthesis","score":0.2475000023841858,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.8824192881584167},{"id":"https://openalex.org/keywords/lemma","display_name":"Lemma (botany)","score":0.686994194984436},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.669975996017456},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.6098434925079346},{"id":"https://openalex.org/keywords/mathematical-proof","display_name":"Mathematical proof","score":0.524543821811676},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.5138104557991028},{"id":"https://openalex.org/keywords/regular-cardinal","display_name":"Regular cardinal","score":0.5113353133201599},{"id":"https://openalex.org/keywords/countable-set","display_name":"Countable set","score":0.507209300994873},{"id":"https://openalex.org/keywords/k-ary-tree","display_name":"K-ary tree","score":0.43348491191864014},{"id":"https://openalex.org/keywords/existential-quantification","display_name":"Existential quantification","score":0.4204046130180359},{"id":"https://openalex.org/keywords/binary-tree","display_name":"Binary tree","score":0.36055126786231995},{"id":"https://openalex.org/keywords/tree-structure","display_name":"Tree structure","score":0.18619155883789062}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.8824192881584167},{"id":"https://openalex.org/C2777759810","wikidata":"https://www.wikidata.org/wiki/Q149316","display_name":"Lemma (botany)","level":3,"score":0.686994194984436},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.669975996017456},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.6098434925079346},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.524543821811676},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.5138104557991028},{"id":"https://openalex.org/C89507440","wikidata":"https://www.wikidata.org/wiki/Q1193137","display_name":"Regular cardinal","level":2,"score":0.5113353133201599},{"id":"https://openalex.org/C110729354","wikidata":"https://www.wikidata.org/wiki/Q185478","display_name":"Countable set","level":2,"score":0.507209300994873},{"id":"https://openalex.org/C100560664","wikidata":"https://www.wikidata.org/wiki/Q3608019","display_name":"K-ary tree","level":4,"score":0.43348491191864014},{"id":"https://openalex.org/C136979486","wikidata":"https://www.wikidata.org/wiki/Q773483","display_name":"Existential quantification","level":2,"score":0.4204046130180359},{"id":"https://openalex.org/C197855036","wikidata":"https://www.wikidata.org/wiki/Q380172","display_name":"Binary tree","level":2,"score":0.36055126786231995},{"id":"https://openalex.org/C163797641","wikidata":"https://www.wikidata.org/wiki/Q2067937","display_name":"Tree structure","level":3,"score":0.18619155883789062},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C46757340","wikidata":"https://www.wikidata.org/wiki/Q43238","display_name":"Poaceae","level":2,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/bf01409969","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01409969","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"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.37.853","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.37.853","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://math.cofc.edu/faculty/jin/research/tree5.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W15031382","https://openalex.org/W139228285","https://openalex.org/W143899488","https://openalex.org/W588060734","https://openalex.org/W1968641550","https://openalex.org/W1978413491","https://openalex.org/W2041424238","https://openalex.org/W2106933206","https://openalex.org/W2950474706","https://openalex.org/W4256173136"],"related_works":["https://openalex.org/W2107381954","https://openalex.org/W4301157150","https://openalex.org/W2089041781","https://openalex.org/W2382364329","https://openalex.org/W2117536196","https://openalex.org/W4244673516","https://openalex.org/W2890272564","https://openalex.org/W2022598760","https://openalex.org/W4224753849","https://openalex.org/W2480446702"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
