{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T15:13:08Z","timestamp":1770909188603,"version":"3.50.1"},"reference-count":15,"publisher":"World Scientific Pub Co Pte Lt","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Algebra Comput."],"published-print":{"date-parts":[[1998,4]]},"abstract":"<jats:p> In this paper we give a criterion for a subset of a semigroup to be pointlike for the join or wreath product of two pseudovarieties. As a consequence we obtain a criterion for membership in the join of two pseudovarieties. Applications include pointlikes for J \u2228 G. <\/jats:p>","DOI":"10.1142\/s0218196798000119","type":"journal-article","created":{"date-parts":[[2003,7,31]],"date-time":"2003-07-31T10:08:41Z","timestamp":1059646121000},"page":"203-231","source":"Crossref","is-referenced-by-count":26,"title":["On Pointlike Sets and Joins of Pseudovarieties"],"prefix":"10.1142","volume":"08","author":[{"given":"Benjamin","family":"Steinberg","sequence":"first","affiliation":[{"name":"Department of Mathematics, University of California at Berkeley, Berkeley, CA 94720, USA"}]}],"member":"219","published-online":{"date-parts":[[2011,11,20]]},"reference":[{"key":"p_1","doi-asserted-by":"publisher","DOI":"10.2307\/2275184"},{"key":"p_2","first-page":"203","volume":"69","author":"Almeida J.","year":"1990","journal-title":"Pure Appl. Algebra"},{"key":"p_4","doi-asserted-by":"publisher","DOI":"10.1142\/S0218196794000051"},{"key":"p_6","doi-asserted-by":"publisher","DOI":"10.1142\/S0218196791000079"},{"key":"p_7","doi-asserted-by":"publisher","DOI":"10.1007\/BF01194543"},{"key":"p_9","doi-asserted-by":"publisher","DOI":"10.1016\/0022-4049(88)90042-4"},{"key":"p_10","doi-asserted-by":"publisher","DOI":"10.1142\/S0218196791000298"},{"key":"p_11","doi-asserted-by":"publisher","DOI":"10.1016\/0022-4049(95)00074-7"},{"key":"p_13","doi-asserted-by":"publisher","DOI":"10.1007\/BF02483902"},{"key":"p_14","doi-asserted-by":"publisher","DOI":"10.1016\/0022-4049(89)90137-0"},{"key":"p_15","doi-asserted-by":"publisher","DOI":"10.1112\/blms\/25.1.37"},{"key":"p_16","doi-asserted-by":"publisher","DOI":"10.1142\/S021819679400004X"},{"key":"p_18","doi-asserted-by":"publisher","DOI":"10.1016\/0022-4049(87)90108-3"},{"key":"p_19","first-page":"31","author":"Tilson B.","year":"1991","journal-title":"Singapore"},{"key":"p_20","first-page":"89","author":"Weil P.","year":"1991","journal-title":"Singapore"}],"container-title":["International Journal of Algebra and Computation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218196798000119","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T21:54:47Z","timestamp":1565128487000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0218196798000119"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,4]]},"references-count":15,"journal-issue":{"issue":"02","published-online":{"date-parts":[[2011,11,20]]},"published-print":{"date-parts":[[1998,4]]}},"alternative-id":["10.1142\/S0218196798000119"],"URL":"https:\/\/doi.org\/10.1142\/s0218196798000119","relation":{},"ISSN":["0218-1967","1793-6500"],"issn-type":[{"value":"0218-1967","type":"print"},{"value":"1793-6500","type":"electronic"}],"subject":[],"published":{"date-parts":[[1998,4]]}}}