Geodesic
$\operatorname{Add}(U)$ of a uniserial module
Commentationes Mathematicae Universitatis Carolinae, Tome 47 (2006) no. 3, pp. 391-398.

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A module is called uniserial if it has totally ordered submodules in inclusion. We describe direct summands of $U^{(I)}$ for a uniserial module $U$. It appears that any such a summand is isomorphic to a direct sum of copies of at most two uniserial modules.
Classification : 16D70
Keywords: serial modules; direct sum decomposition 
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     title = {$\operatorname{Add}(U)$ of a uniserial module},
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Příhoda, Pavel. $\operatorname{Add}(U)$ of a uniserial module. Commentationes Mathematicae Universitatis Carolinae, Tome 47 (2006) no. 3, pp. 391-398. http://geodesic.mathdoc.fr/item/CMUC_2006__47_3_a2/