Geodesic
Notes on effective descent and projectivity in quasivarieties of universal algebras
Theory and applications of categories, The Tholen Festschrift, Tome 21 (2008), pp. 172-181

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We present sufficient conditions under which effective descent morphisms in a quasivariety of universal algebras are the same as regular epimorphisms and examples for which they are the same as regular epimorphisms satisfying projectivity.

Classification : 18C10, 18A20, 08C15, 08B30
Keywords: effective descent, projectivity, quasivariety 
Ana Helena Roque. Notes on effective descent and projectivity in quasivarieties of universal 
algebras. Theory and applications of categories, The Tholen Festschrift, Tome 21 (2008), pp. 172-181. http://geodesic.mathdoc.fr/item/TAC_2008_21_a8/
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     language = {en},
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