• In linear algebra, a circulant matrix is a square matrix in which all rows are composed of the same elements and each row is rotated one element to the...
    15 KB (2,857 words) - 07:46, 17 June 2025
  • Thumbnail for Circulant graph
    cyclic permutation of its vertices. The graph has an adjacency matrix that is a circulant matrix. The n vertices of the graph can be numbered from 0 to n −...
    10 KB (1,310 words) - 17:13, 24 May 2025
  • Thumbnail for Hadamard matrix
    n × n Hadamard matrix is that n be a square number. A circulant matrix is manifestly regular, and therefore a circulant Hadamard matrix would have to be...
    26 KB (3,716 words) - 20:33, 18 May 2025
  • Thumbnail for Symmetric matrix
    Skew-symmetric matrix (also called antisymmetric or antimetric) Centrosymmetric matrix Circulant matrix Covariance matrix Coxeter matrix GCD matrix Hankel matrix Hilbert...
    17 KB (2,812 words) - 21:08, 14 April 2025
  • Grudsky. Circulant matrix, a square Toeplitz matrix with the additional property that a i = a i + n {\displaystyle a_{i}=a_{i+n}} Hankel matrix, an "upside...
    15 KB (2,078 words) - 08:02, 17 June 2025
  • pseudoinverse trivially coincides with the matrix itself: A + = A . {\displaystyle A^{+}=A.} For a circulant matrix ⁠ C {\displaystyle C} ⁠, the singular value...
    47 KB (7,644 words) - 15:51, 13 April 2025
  • Multiplication operator Tridiagonal matrix Toeplitz matrix Toral Lie algebra Circulant matrix Proof: given the elementary matrix e i j {\displaystyle e_{ij}}...
    17 KB (2,414 words) - 01:49, 15 June 2025
  • Thumbnail for List of named matrices
    matrices used in mathematics, science and engineering. A matrix (plural matrices, or less commonly matrixes) is a rectangular array of numbers called entries...
    32 KB (1,336 words) - 21:01, 14 April 2025
  • roots of unity, the companion matrix and its transpose both reduce to Sylvester's cyclic shift matrix, a circulant matrix. Consider a polynomial p ( x...
    12 KB (2,500 words) - 21:02, 14 April 2025
  • kernel. Bateman transform Convolution kernel Circular convolution Circulant matrix Differential equations Kernel method List of transforms List of operators...
    13 KB (1,278 words) - 17:01, 18 November 2024
  • are indexed by field elements in the usual 0, 1, 2, … order, Q is a circulant matrix. That is, each row is obtained from the row above by cyclic permutation...
    8 KB (1,498 words) - 07:02, 17 June 2025
  • Thumbnail for Weighing matrix
    1&0&1&0&0&-\end{pmatrix}}} Which is circulant, i.e. each row is a cyclic shift of the previous row. Such a matrix is called a C W ( n , k ) {\displaystyle...
    16 KB (2,412 words) - 22:57, 27 February 2025
  • Thumbnail for Discrete Fourier transform
    consequence of the circular convolution theorem is that the DFT matrix F diagonalizes any circulant matrix. A useful property of the DFT is that the inverse DFT...
    76 KB (12,333 words) - 05:19, 3 May 2025
  • their spatial interactions, then the interaction matrix is circulant. The eigenvalues of a circulant matrix are given by λ k = ∑ j = 0 N − 1 c j γ k j {\displaystyle...
    21 KB (3,114 words) - 15:07, 27 August 2024
  • determinant of Z. This is a consequence of Z being a circulant matrix and the theorem: If A is a circulant matrix in the class Ω(n,k) then if k > 3, perm(A) > |det...
    27 KB (4,567 words) - 14:47, 21 January 2025
  • matrix Tridiagonal matrix Block matrix Sparse matrix Hessenberg matrix Hessian matrix Vandermonde matrix Stochastic matrix Toeplitz matrix Circulant matrix...
    5 KB (377 words) - 12:12, 30 October 2023
  • m ≈ log ⁡ q {\displaystyle m\approx \log q} . Definition: The nega-circulant matrix of b {\displaystyle b} is defined as: for b = ∑ i = 0 n − 1 b i x i...
    16 KB (3,166 words) - 03:27, 7 April 2025
  • Thumbnail for Convolution
    fractional integral and fractional derivative. Analog signal processing Circulant matrix Convolution for optical broad-beam responses in scattering media Convolution...
    67 KB (8,819 words) - 15:20, 10 May 2025
  • DFT matrix becomes a circulant matrix. Multiplying a data sequence with a circulant matrix is equivalent to the cyclic convolution with the matrix's row...
    7 KB (1,095 words) - 21:35, 10 December 2024
  • and h are ≤ N, it is reducible to matrix multiplication where the kernel of the integral transform is a circulant matrix. A case of great practical interest...
    11 KB (1,276 words) - 12:26, 17 December 2024
  • convolution or wrapped convolution. It results from multiplication of a skew circulant matrix, generated by vector a, with vector b. Circular convolution theorem...
    531 bytes (45 words) - 06:48, 25 November 2022
  • lower-cost hardware—in particular, codes constructed such that the H matrix is a circulant matrix. Yet another way of constructing LDPC codes is to use finite...
    36 KB (4,626 words) - 03:13, 7 June 2025
  • square matrix. The determinant of a matrix A is commonly denoted det(A), det A, or |A|. Its value characterizes some properties of the matrix and the...
    91 KB (14,395 words) - 21:11, 31 May 2025
  • prime p Hermitian matrix Bloch sphere Discrete Fourier transform Generalized Clifford algebra Weyl–Brauer matrices Circulant matrix Shift operator Quantum...
    16 KB (2,766 words) - 13:59, 25 September 2024
  • used in numerical analysis. A circulant matrix is a matrix where every column is a cyclic shift of the previous one. Circulant matrices can be diagonalized...
    13 KB (2,052 words) - 00:36, 8 May 2025
  • the lepton masses are given by the squares of the eigenvalues of a circulant matrix with real eigenvalues, corresponding to the relation m n = μ [ 1 +...
    25 KB (3,712 words) - 10:16, 30 May 2025
  • Thumbnail for Jacket matrix
    [\mathbf {A} _{1}]_{p}} are pxp Jacket matrix, then [ A ] N {\displaystyle [A]_{N}} is a block circulant matrix if and only if A 0 A 1 r t + A 1 r t A...
    6 KB (1,256 words) - 13:54, 28 April 2025
  • diagonal matrix commutes with all other diagonal matrices. Circulant matrices commute. They form a commutative ring since the sum of two circulant matrices...
    9 KB (1,427 words) - 02:15, 25 May 2025
  • Thumbnail for Root of unity
    group. The roots of unity appear as entries of the eigenvectors of any circulant matrix; that is, matrices that are invariant under cyclic shifts, a fact that...
    41 KB (5,944 words) - 09:31, 18 June 2025
  • of order n, the matrix form of an element of K[C] acting on K[C] by multiplication takes a distinctive form known as a circulant matrix, in which each...
    10 KB (1,557 words) - 00:17, 16 April 2025