Geodesic
On the cotypeset of torsion-free abelian groups
Algebra and discrete mathematics, Tome 19 (2015) no. 2, pp. 200-212.

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In this paper the cotypeset of some torsion-free abelian groups of finite rank is studied. In particular, we determine the cotypeset of some rank two groups using the elements of their typesets.
Keywords: typeset, cotypeset, type sequence, co-rank. 
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Fatemeh Karimi. On the cotypeset of torsion-free abelian groups. Algebra and discrete mathematics, Tome 19 (2015) no. 2, pp. 200-212. http://geodesic.mathdoc.fr/item/ADM_2015_19_2_a4/

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