Geodesic
Homomorphic images of Abelian groups
Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 5, pp. 67-76.

Voir la notice de l'article provenant de la source Math-Net.Ru

For some classes of Abelian groups, an answer to the following question is presented: when the union of homomorphic images of a group is a subgroup of another group? In connection with this, the concept of a homomorphically stable group is introduced, and homomorphic stability of groups from different classes of Abelian groups is studied. 
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S. Ya. Grinshpon; T. A. Yeltsova. Homomorphic images of Abelian groups. Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 5, pp. 67-76. http://geodesic.mathdoc.fr/item/FPM_2008_14_5_a2/

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