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单词 dual map
释义
dual map

Mathematics
  • For a linear map T:VW of vector spaces, the dual map T*:W*→V* between the dual spaces is defined by (T*φ‎)(v) = φ‎(Tv) for φ‎ in W* and v in V. If the matrix for T is M, with respect to bases for V and W, then the matrix for T* is the transpose MT with respect to the dual bases.


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