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Cyclic subspace : ウィキペディア英語版 | Cyclic subspace
In mathematics, in linear algebra, a cyclic subspace is a certain special subspace of a finite-dimensional vector space associated with a vector in the vector space and a linear transformation of the vector space. The cyclic subspace associated with a vector ''v'' in a vector space ''V'' and a linear transformation ''T'' of ''V'' is called the ''T''-cyclic subspace generated by ''v''. The concept of a cyclic subspace is a basic component in the formulation of the cyclic decomposition theorem in linear algebra. ==Definition== Let be a linear transformation of a vector space and let be a vector in . The -cyclic subspace of generated by is the subspace of generated by the set of vectors . This subspace is denoted by . If , then is called a cyclic vector for . There is another equivalent definition of cyclic spaces. Let be a linear transformation of a finite dimensional vector space over a field and be a vector in . The set of all vectors of the form , where is a polynomial in the ring of all polynomials in over , is the -cyclic subspace generated by .〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cyclic subspace」の詳細全文を読む
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