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  2. Rank–nullity theorem - Wikipedia

    en.wikipedia.org/wiki/Rank–nullity_theorem

    The rank–nullity theorem is a theorem in linear algebra, which asserts: the number of columns of a matrix M is the sum of the rank of M and the nullity of M ; and the dimension of the domain of a linear transformation f is the sum of the rank of f (the dimension of the image of f ) and the nullity of f (the dimension of the kernel of f ).

  3. Linear algebra - Wikipedia

    en.wikipedia.org/wiki/Linear_algebra

    Linear algebra is the branch of mathematics concerning ... Linear maps are mappings between vector spaces that preserve ... Friedberg, Stephen H.; Insel, Arnold ...

  4. Square root of a matrix - Wikipedia

    en.wikipedia.org/wiki/Square_root_of_a_matrix

    In linear algebra and operator theory, given a bounded positive semidefinite operator (a non-negative operator) T on a complex Hilbert space, B is a square root of T if T = B* B, where B* denotes the Hermitian adjoint of B.

  5. Matrix similarity - Wikipedia

    en.wikipedia.org/wiki/Matrix_similarity

    In linear algebra, two n-by-n matrices A and B are called similar if there exists an invertible n-by-n matrix P such that =. Similar matrices represent the same linear map under two (possibly) different bases, with P being the change-of-basis matrix.

  6. Dilogarithm - Wikipedia

    en.wikipedia.org/wiki/Dilogarithm

    The dilogarithm along the real axis. In mathematics, the dilogarithm (or Spence's function), denoted as Li 2 (z), is a particular case of the polylogarithm.Two related special functions are referred to as Spence's function, the dilogarithm itself:

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    AOL Mail welcomes Verizon customers to our safe and delightful email experience!

  8. Talk:Basis (linear algebra) - Wikipedia

    en.wikipedia.org/wiki/Talk:Basis_(linear_algebra)

    Friedberg--Insel--Spence, Linear algebra: unambiguously defines a basis as an unordered object, later explicitly introduces an ordering. Axler, Linear algebra done right: unambiguously defines a basis as an ordered object (a "list"); it is not clear what this is supposed to mean in the infinite-dimensional case.

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