• {\displaystyle A\in \mathbb {F} ^{m\times n}} , a rank decomposition or rank factorization of A is a factorization of A of the form A = CF, where C ∈ F m × r...
    12 KB (1,943 words) - 18:49, 16 October 2022
  • non-negative matrix factorizations was performed by a Finnish group of researchers in the 1990s under the name positive matrix factorization. It became more...
    68 KB (7,780 words) - 23:09, 26 August 2024
  • (so-called rank-revealing QR factorization), which are still more numerically robust than Gaussian elimination. Numerical determination of rank requires...
    29 KB (4,390 words) - 03:18, 12 September 2024
  • discipline of linear algebra, a matrix decomposition or matrix factorization is a factorization of a matrix into a product of matrices. There are many different...
    26 KB (3,580 words) - 17:05, 12 March 2024
  • Thumbnail for Rank–nullity theorem
    {\displaystyle r\times (n-r)} matrix B {\displaystyle \mathbf {B} } (see rank factorization) and, hence, A = ( A 1 A 1 B ) . {\displaystyle \mathbf {A} ={\begin{pmatrix}\mathbf...
    18 KB (3,066 words) - 16:26, 18 April 2024
  • Problem 73-14, Rank Factorization of Nonnegative Matrices", SIAM Review 16(3), 393-394, 1974 Berman, A., Plemmons, R.J.: "Rank Factorization of Nonnegative...
    5 KB (741 words) - 18:28, 5 November 2021
  • triangular matrices). Let A be a square matrix. An LU factorization refers to the factorization of A, with proper row and/or column orderings or permutations...
    39 KB (6,245 words) - 02:54, 16 September 2024
  • An RRQR factorization or rank-revealing QR factorization is a matrix decomposition algorithm based on the QR factorization which can be used to determine...
    2 KB (138 words) - 14:47, 30 March 2024
  • In mathematics and computer algebra, factorization of polynomials or polynomial factorization expresses a polynomial with coefficients in a given field...
    28 KB (4,370 words) - 00:06, 10 August 2024
  • In linear algebra, the Cholesky decomposition or Cholesky factorization (pronounced /ʃəˈlɛski/ shə-LES-kee) is a decomposition of a Hermitian, positive-definite...
    51 KB (7,649 words) - 21:12, 30 September 2024