1、Rings on which any Module Is a Direct Sum of Cyclic Modules
其上任一模都是循環(huán)模直和的環(huán)

2、On the Meta Direct Sum of BCI-Algebra
關(guān)于BCI—代數(shù)的亞直和

3、THE OUTER DIRECT PRODUCT AND THE INTERNAL DIRECT SUM OF BCI-ALGEBRAS
BCI—代數(shù)的外直積與外直和

4、When a direct sum of lifting modules is lifting is studied here.
研究了提升模的任意直和在什么條件下仍是提升模。

5、A Discussion on the Direct Sum of Two Closed Subspaces for Hilbert Space
關(guān)于Hilbert空間中兩閉子空間直和的一點(diǎn)討論

direct sum翻譯