Let R be a commutative ring and G a finite group. In [1], using a structure on an R-module M to make it an RG-module, we find some relations between RG-submodules and a subgroups. We also prove that for each normal subgroup H of G with an invertible |H| in R, there is a direct summand RG-submodule of M.
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机译：让R是换向戒指和G一个有限组。在[1]中，在R-Module M上使用结构来使其成为RG模块，我们在RG-IMODOMELES和子组之间找到了一些关系。我们还证明，对于每个正常的常规子组h，可逆| H |在r中，有一个直接汇总的rg-subsodule的m。
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