direct sum

基本解释

When a direct sum of lifting modules is lifting is studied here.
研究了提陞模的任意直和在什麽條件下仍是提陞模。
The definition of similar quasi-direct sum of matrix is introduced. Andthe connection with group inverse is discussed. Some properties and applications are obtained.
首先引入矩陣的相似準直和的定義，討論了它和群逆的關系，得到了一些性質和應用．。
In this paper, we have discussed root subspace decomposition of linear space, and for the linear space have decomposed direct sum of root subspace , a primary proof is given.
文章討論了線性空間的根子空間分解，竝對線性空間分解成根子空間的直和給出了較爲初等的証明。

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