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direct sum

/dɪˈrɛkt sʌm/

翻译: 数学术语,指将两个或多个代数结构(如向量空间、群或模)组合成一个新结构的构造,其中每个元素都可唯一表示为来自原结构元素的和。

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phrase

/dɪˈrɛkt sʌm/C1formalscientific
  • zh数学术语,指将两个或多个代数结构(如向量空间、群或模)组合成一个新结构的构造,其中每个元素都可唯一表示为来自原结构元素的和。

A mathematical term referring to a construction that combines two or more algebraic structures (such as vector spaces, groups, or modules) into a new structure, where each element is uniquely expressed as a sum of elements from the original structures.

  1. Mathematical constructionC2formal

    A construction in abstract algebra that combines several modules or vector spaces into a larger one, where each element can be uniquely expressed as a sum of elements from the original spaces.

    zh直和

    • The direct sum of two vector spaces V and W is denoted V ⊕ W.
    • In group theory, the direct sum of abelian groups is a special case of the direct product.
    • The decomposition of a module into a direct sum of submodules is a key concept in representation theory.