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http://hdl.handle.net/10773/25995
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Xarez, João J. | pt_PT |
dc.contributor.author | Xarez, Isabel A. | pt_PT |
dc.date.accessioned | 2019-05-09T11:29:19Z | - |
dc.date.available | 2019-05-09T11:29:19Z | - |
dc.date.issued | 2020 | - |
dc.identifier.issn | 2345-5853 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/25995 | - |
dc.description.abstract | We give a necessary and sufficient condition for the preservation of finite products by a reflection of a variety of universal algebras into an idempotent subvariety. It is also shown that simple and semi-left-exact reflections into subvarieties of universal algebras are the same. It then follows that a reflection of a variety of universal algebras into an idempotent subvariety has stable units if and only if it is simple and the above-mentioned condition holds. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Shahid Beheshti University | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/135976/PT | pt_PT |
dc.relation | UID/MAT/04106/2019 | pt_PT |
dc.rights | openAccess | pt_PT |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | pt_PT |
dc.subject | Semi-left-exactness | pt_PT |
dc.subject | Stable units | pt_PT |
dc.subject | Simple reflection | pt_PT |
dc.subject | Preservation of finite products | pt_PT |
dc.subject | Varieties of universal algebras | pt_PT |
dc.subject | Idempotent | pt_PT |
dc.title | Product preservation and stable units for reflections into idempotent subvarieties | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.title | Categories and General Algebraic Structures with Applications | pt_PT |
dc.identifier.essn | 2345-5861 | pt_PT |
Appears in Collections: | CIDMA - Artigos AGG - Artigos DMat - Artigos |
Files in This Item:
File | Description | Size | Format | |
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CGASA_Volume 13_Issue 1_Pages 1-22.pdf | 540.88 kB | Adobe PDF | View/Open |
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