This paper contains new and known results on modules in which submodules are close to direct summands. The main results are presented with proofs.
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Translated from Fundamentalnaya i Prikladnaya Matematika, Vol. 14, No. 6, pp. 3–31, 2008.
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Abyzov, A.N., Tuganbaev, A.A. Submodules and direct summands. J Math Sci 164, 1–20 (2010). https://doi.org/10.1007/s10958-009-9749-8
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DOI: https://doi.org/10.1007/s10958-009-9749-8