{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T04:18:10Z","timestamp":1773116290538,"version":"3.50.1"},"reference-count":8,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[1986,12,1]],"date-time":"1986-12-01T00:00:00Z","timestamp":533779200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Semigroup Forum"],"published-print":{"date-parts":[[1986,12]]},"DOI":"10.1007\/bf02573191","type":"journal-article","created":{"date-parts":[[2007,3,22]],"date-time":"2007-03-22T17:25:46Z","timestamp":1174584346000},"page":"175-185","source":"Crossref","is-referenced-by-count":3,"title":["Some results on congruences on r-unipotent semigroups"],"prefix":"10.1007","volume":"33","author":[{"given":"M. S.","family":"Gomes","sequence":"first","affiliation":[]}],"member":"297","reference":[{"key":"BF02573191_CR1","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1007\/BF02574170","volume":"18","author":"Constance C. Edwards","year":"1979","unstructured":"Edwards, Constance C.,The minimum group congruence on an L-unipotent semigroup, Semigroup Forum 18 (1979), 9\u201314.","journal-title":"Semigroup Forum"},{"key":"BF02573191_CR2","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1017\/S0308210500015791","volume":"95","author":"Gracinda M.S. Gomes","year":"1983","unstructured":"Gomes, Gracinda M.S.,On left quasinormal orthodox semigroups, Proc. Royal Soc. Edinburgh 95 (1983), 59\u201371.","journal-title":"Proc. Royal Soc. Edinburgh"},{"key":"BF02573191_CR3","volume-title":"Aspects of order and congruence relations on regular semigroups","author":"Gracinda M.S. Gomes","year":"1983","unstructured":"Gomes, Gracinda M.S.,Aspects of order and congruence relations on regular semigroups, Ph. D. Thesis, Univ of St Andrews, Scotland (1983)."},{"key":"BF02573191_CR4","doi-asserted-by":"crossref","first-page":"265","DOI":"10.1007\/BF02572656","volume":"31","author":"Gracinda M.S. Gomes","year":"1985","unstructured":"Gomes, Gracinda M.S., R-unipotent congruences on regular semigroups, Semigroup Forum 31 (1985), 265\u2013280.","journal-title":"Semigroup Forum"},{"key":"BF02573191_CR5","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1007\/BF02573190","volume":"33","author":"Gracinda M.S. Gomes","year":"1986","unstructured":"Gomes, Gracinda M.S.,The lattice of R-unipotent congruences on a regular semigroup Semigroup Forum 33, 1986, 159\u2013173.","journal-title":"Semigroup Forum"},{"key":"BF02573191_CR6","volume-title":"An Introduction to Semigroup Theory","author":"J.M. Howie","year":"1976","unstructured":"Howie, J.M.,An Introduction to Semigroup Theory (London: Academic Press, 1976)."},{"key":"BF02573191_CR7","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1007\/BF02572814","volume":"22","author":"D.R. Torre La","year":"1981","unstructured":"La Torre, D.R., \u03b8-classes in L-unipotent semigroups, Semigroup Forum 22 (1981), 355\u2013365.","journal-title":"Semigroup Forum"},{"key":"BF02573191_CR8","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/0021-8693(78)90219-3","volume":"55","author":"M. Petrich","year":"1978","unstructured":"Petrich, M.,Congruences on inverse semigroups, J. Algebra 55 (1978), 231\u2013256.","journal-title":"J. Algebra"}],"container-title":["Semigroup Forum"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/BF02573191.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/BF02573191\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/BF02573191","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,18]],"date-time":"2019-05-18T16:10:20Z","timestamp":1558195820000},"score":1,"resource":{"primary":{"URL":"http:\/\/link.springer.com\/10.1007\/BF02573191"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1986,12]]},"references-count":8,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1986,12]]}},"alternative-id":["BF02573191"],"URL":"https:\/\/doi.org\/10.1007\/bf02573191","relation":{},"ISSN":["0037-1912","1432-2137"],"issn-type":[{"value":"0037-1912","type":"print"},{"value":"1432-2137","type":"electronic"}],"subject":[],"published":{"date-parts":[[1986,12]]}}}