Conormal morphisms.

Autor: Enochs, Edgar, Rozas, J. R. García, Oyonarte, Luis, Jenda, Overtoun M. G.
Zdroj: Proceedings of the Royal Society of Edinburgh: Section A: Mathematics; 2003, Vol. 133 Issue 5, p1047-1056, 10p
Abstrakt: This article represents another step in our programme of obtaining a Galois theory and a coGalois theory when we have a category C and a given enveloping (for Galois) or covering (for coGalois) class. More precisely, in this paper, we study what should be understood by a conormal morphism between two objects of a given category and we characterize conormal morphisms between finite abelian groups when the covering class under consideration is that of torsion-free abelian groups. [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index