{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,10]],"date-time":"2026-05-10T03:47:06Z","timestamp":1778384826071,"version":"3.51.4"},"reference-count":15,"publisher":"Elsevier BV","issue":"8","license":[{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T00:00:00Z","timestamp":1772409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003977","name":"Israel Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003977","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Annals of Pure and Applied Logic"],"published-print":{"date-parts":[[2026,8]]},"DOI":"10.1016\/j.apal.2026.103747","type":"journal-article","created":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T20:27:27Z","timestamp":1772483247000},"page":"103747","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"title":["A unique Q-point and infinitely many near-coherence classes of ultrafilters"],"prefix":"10.1016","volume":"177","author":[{"given":"Lorenz","family":"Halbeisen","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2629-5719","authenticated-orcid":false,"given":"Silvan","family":"Horvath","sequence":"additional","affiliation":[]},{"given":"Saharon","family":"Shelah","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/j.apal.2026.103747_br0010","series-title":"Handbook of Set Theory","first-page":"333","article-title":"Proper forcing","author":"Abraham","year":"2009"},{"key":"10.1016\/j.apal.2026.103747_br0020","series-title":"Set Theory: Centre de Recerca Matem\u00e0tica Barcelona, 2003\u20132004","first-page":"257","article-title":"The number of near-coherence classes of ultrafilters is either finite or 2c","author":"Banakh","year":"2006"},{"issue":"4","key":"10.1016\/j.apal.2026.103747_br0030","doi-asserted-by":"crossref","first-page":"530","DOI":"10.1305\/ndjfl\/1093635236","article-title":"Near coherence of filters. III. A simplified consistency proof","volume":"30","author":"Blass","year":"1989","journal-title":"Notre Dame J. Form. Log."},{"issue":"1","key":"10.1016\/j.apal.2026.103747_br0040","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1090\/S0002-9939-1990-0993747-3","article-title":"On the generic existence of special ultrafilters","volume":"110","author":"Canjar","year":"1990","journal-title":"Proc. Am. Math. Soc."},{"issue":"3","key":"10.1016\/j.apal.2026.103747_br0070","first-page":"907","article-title":"Tukey types of ultrafilters","volume":"55","author":"Dobrinen","year":"2011","journal-title":"Ill. J. Math."},{"key":"10.1016\/j.apal.2026.103747_br0080","series-title":"Tools for Your Forcing Construction","author":"Goldstern","year":"1992"},{"key":"10.1016\/j.apal.2026.103747_br0090","doi-asserted-by":"crossref","DOI":"10.1007\/978-3-319-60231-8","article-title":"Combinatorial Set Theory: With a Gentle Introduction to Forcing","author":"Halbeisen","year":"2017"},{"key":"10.1016\/j.apal.2026.103747_br0100","author":"Halbeisen"},{"issue":"01","key":"10.1016\/j.apal.2026.103747_br0110","doi-asserted-by":"crossref","DOI":"10.1142\/S0219061323500034","article-title":"Exactly two and exactly three near-coherence classes","volume":"24","author":"Mildenberger","year":"2024","journal-title":"J. Math. Log."},{"key":"10.1016\/j.apal.2026.103747_br0120","first-page":"219","article-title":"A note about special ultrafilters on \u03c9","volume":"31","author":"Mill\u00e1n","year":"2007","journal-title":"Topol. Proc."},{"key":"10.1016\/j.apal.2026.103747_br0130","first-page":"103","article-title":"There are no Q-points in Laver's model for the Borel conjecture","author":"Miller","year":"1980","journal-title":"Proc. Am. Math. Soc."},{"key":"10.1016\/j.apal.2026.103747_br0050","doi-asserted-by":"crossref","DOI":"10.1016\/j.topol.2025.109423","article-title":"Q-points in the Tukey order","author":"Raghavan","year":"2025","journal-title":"Topol. Appl."},{"issue":"3","key":"10.1016\/j.apal.2026.103747_br0060","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1016\/j.apal.2011.08.002","article-title":"Cofinal types of ultrafilters","volume":"163","author":"Raghavan","year":"2012","journal-title":"Ann. Pure Appl. Log."},{"key":"10.1016\/j.apal.2026.103747_br0140","doi-asserted-by":"crossref","DOI":"10.1007\/978-3-662-12831-2","article-title":"Proper and Improper Forcing","author":"Shelah","year":"1998"},{"key":"10.1016\/j.apal.2026.103747_br0150","doi-asserted-by":"crossref","first-page":"556","DOI":"10.21136\/CMJ.1977.101493","article-title":"Families of sets and functions","volume":"27","author":"Solomon","year":"1977","journal-title":"Czechoslov. Math. J."}],"container-title":["Annals of Pure and Applied Logic"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0168007226000308?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0168007226000308?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T13:42:41Z","timestamp":1778074961000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0168007226000308"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8]]},"references-count":15,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,8]]}},"alternative-id":["S0168007226000308"],"URL":"https:\/\/doi.org\/10.1016\/j.apal.2026.103747","relation":{},"ISSN":["0168-0072"],"issn-type":[{"value":"0168-0072","type":"print"}],"subject":[],"published":{"date-parts":[[2026,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"A unique Q-point and infinitely many near-coherence classes of ultrafilters","name":"articletitle","label":"Article Title"},{"value":"Annals of Pure and Applied Logic","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.apal.2026.103747","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Author(s). Published by Elsevier B.V.","name":"copyright","label":"Copyright"}],"article-number":"103747"}}