Geodesic
On projective invariant subgroups of Abelian groups
Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 6, pp. 211-218 
A. R. Chekhlov. On projective invariant subgroups of Abelian groups. Fundamentalʹnaâ i prikladnaâ matematika, Tome 14 (2008) no. 6, pp. 211-218. http://geodesic.mathdoc.fr/item/FPM_2008_14_6_a11/
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     title = {On projective invariant subgroups of {Abelian} groups},
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     volume = {14},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2008_14_6_a11/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Properties of projective invariant subgroups are studied. The structure of these subgroups in nonreduced groups is described. The conditions under which projective invariant subgroups are fully invariant are considered.

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