{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,9,4]],"date-time":"2023-09-04T14:35:41Z","timestamp":1693838141474},"reference-count":9,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2014,3,12]],"date-time":"2014-03-12T00:00:00Z","timestamp":1394582400000},"content-version":"unspecified","delay-in-days":5398,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. symb. log."],"published-print":{"date-parts":[[1999,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We compare several closely related continuum invariants, i.e., <jats:italic>a, a<jats:sub>e<\/jats:sub>. a<jats:sub>p<\/jats:sub><\/jats:italic> in two forcing models. And we shall ask some open questions in this field.<\/jats:p>","DOI":"10.2307\/2586496","type":"journal-article","created":{"date-parts":[[2006,5,6]],"date-time":"2006-05-06T18:03:01Z","timestamp":1146938581000},"page":"737-746","source":"Crossref","is-referenced-by-count":7,"title":["On a class of m.a.d. families"],"prefix":"10.1017","volume":"64","author":[{"given":"Yi","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2014,3,12]]},"reference":[{"key":"S002248120001358X_ref008","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-444-86580-9.50006-9"},{"key":"S002248120001358X_ref006","doi-asserted-by":"publisher","DOI":"10.1090\/conm\/031\/763901"},{"key":"S002248120001358X_ref004","doi-asserted-by":"publisher","DOI":"10.1090\/S0002-9947-1981-0613787-2"},{"key":"S002248120001358X_ref001","volume-title":"Set theory","author":"Jech","year":"1978"},{"key":"S002248120001358X_ref007","unstructured":"Steprans J. , unpublished notes, Department of Mathematics, York University, 1997."},{"key":"S002248120001358X_ref002","volume-title":"Set Theory. An Introduction to Independence Proofs","author":"Kunen","year":"1980"},{"key":"S002248120001358X_ref009","unstructured":"Zhang Y. , Cofinitary groups and almost disjoint families, Ph.D. thesis , Rutgers University, 1997."},{"key":"S002248120001358X_ref003","doi-asserted-by":"publisher","DOI":"10.1017\/S0305004100000785"},{"key":"S002248120001358X_ref005","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-21543-2"}],"container-title":["Journal of Symbolic Logic"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S002248120001358X","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,9]],"date-time":"2019-05-09T21:17:29Z","timestamp":1557436649000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S002248120001358X\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,6]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1999,6]]}},"alternative-id":["S002248120001358X"],"URL":"https:\/\/doi.org\/10.2307\/2586496","relation":{},"ISSN":["0022-4812","1943-5886"],"issn-type":[{"value":"0022-4812","type":"print"},{"value":"1943-5886","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,6]]}}}