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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Corank ： ウィキペディア英語版 Corank In mathematics, corank may refer to any of several related concepts, complementary to the concept of the rank of a mathematical object: *The corank of an $m\backslash times\; n$ matrix is $m-r$ where $r$ is the rank of the matrix. Equivalently, by the fundamental theorem of linear algebra, it is the dimension of the left nullspace of the matrix. *Generalizing matrices to linear transformations of vector spaces, the corank of a linear transformation is the dimension of the cokernel of the transformation, which is the quotient of the codomain by the image of the transformation. *For a matroid with $n$ elements and matroid rank $r$, the corank or nullity of the matroid is $n-r$. In the case of linear matroids this coincides with the matrix corank. In the case of graphic matroids the corank is also known as the circuit rank or cyclomatic number. ==See also== *Sylvester's law of inertia 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「Corank」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.