On a generalization of semisimple modules |
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Authors: | Nazim Agayev Cesim Çelik Tahire Özen |
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Affiliation: | 1.Computer Engineering Department,Fatih Sultan Mehmet Vakf University,Istanbul,Turkey;2.Department of Mathematics,Abant ?zzet Baysal University,Bolu,Turkey |
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Abstract: | Let R be a ring with identity. A module (M_R) is called an r-semisimple module if for any right ideal I of R, MI is a direct summand of (M_R) which is a generalization of semisimple and second modules. We investigate when an r-semisimple ring is semisimple and prove that a ring R with the number of nonzero proper ideals (le )4 and (J(R)=0) is r-semisimple. Moreover, we prove that R is an r-semisimple ring if and only if it is a direct sum of simple rings and we investigate the structure of module whenever R is an r-semisimple ring. |
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