• In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers. The function is...
    22 KB (4,056 words) - 21:53, 29 December 2023
  • Thumbnail for Dirac delta function
    instantaneous impulses. It is called the delta function because it is a continuous analogue of the Kronecker delta function, which is usually defined on...
    94 KB (14,079 words) - 09:16, 27 October 2024
  • Thumbnail for Leopold Kronecker
    Kronecker are the Kronecker limit formula, Kronecker's congruence, Kronecker delta, Kronecker comb, Kronecker symbol, Kronecker product, Kronecker's method...
    15 KB (1,400 words) - 02:52, 25 October 2024
  • inverted delta representing del, a vector differential operator Kronecker delta ( δ i j {\displaystyle \delta _{ij}} ), a function Dirac delta ( δ ( x...
    9 KB (1,138 words) - 18:03, 9 June 2024
  • g(k)})_{j\in [n],k\in [m]}{\bigr )}} where " δ {\displaystyle \delta } " is the Kronecker delta, and the Cauchy−Binet formula to prove has been rewritten as...
    19 KB (4,035 words) - 18:48, 11 October 2024
  • more specifically in calculus The Kronecker delta in mathematics The degree of a vertex (graph theory) The Dirac delta function in mathematics The transition...
    10 KB (1,326 words) - 12:23, 31 October 2024
  • 4. {\displaystyle \delta _{\rho }^{\rho }=\delta _{0}^{0}+\delta _{1}^{1}+\delta _{2}^{2}+\delta _{3}^{3}=4.} The Kronecker delta is one of the family...
    43 KB (6,872 words) - 18:52, 6 May 2024
  • [{\hat {x}}_{i},{\hat {p}}_{j}]=i\hbar \delta _{ij},} where δ i j {\displaystyle \delta _{ij}} is the Kronecker delta. This relation is attributed to Werner...
    21 KB (3,007 words) - 22:54, 28 September 2024
  • needed] The impulse response (that is, the output in response to a Kronecker delta input) of an Nth-order discrete-time FIR filter lasts exactly N + 1...
    18 KB (3,089 words) - 12:26, 18 August 2024
  • take values 1, 2, and 3: The Levi-Civita symbol is related to the Kronecker delta. In three dimensions, the relationship is given by the following equations...
    30 KB (5,171 words) - 01:42, 4 September 2024
  • with an integral of one over the entire real line. Delta function may also refer to: Kronecker delta, a function of two variables which is one for equal...
    813 bytes (150 words) - 03:41, 17 December 2022
  • Thumbnail for Cartesian tensor
    of Kronecker deltas: ε i j k ε p q k = δ i p δ j q − δ i q δ j p {\displaystyle \varepsilon _{ijk}\varepsilon _{pqk}=\delta _{ip}\delta _{jq}-\delta _{iq}\delta...
    67 KB (11,700 words) - 20:42, 27 October 2024
  • {\displaystyle \mathbf {e} ^{i}(\mathbf {e} _{j})=\delta _{j}^{i}.} where δ is the Kronecker delta. As Hom ⁡ ( V , W ) = V ∗ ⊗ W {\displaystyle \operatorname...
    14 KB (2,049 words) - 01:26, 28 October 2024
  • named after Kenneth E. Iverson, is a notation that generalises the Kronecker delta, which is the Iverson bracket of the statement x = y. It maps any statement...
    9 KB (1,642 words) - 20:41, 1 November 2024
  • the Kronecker delta function ( δ j i = 0 {\displaystyle \delta _{j}^{i}=0} when i ≠ j {\displaystyle i\neq j} and δ j i = 1 {\displaystyle \delta _{j}^{i}=1}...
    18 KB (3,014 words) - 13:38, 4 October 2024
  • \sigma _{ij}=2\mu \varepsilon _{ij}+\lambda \delta _{ij}\varepsilon _{kk},} where δij is the Kronecker delta. The two parameters together constitute a parameterization...
    4 KB (436 words) - 15:56, 23 March 2024
  • \mathbf {e} _{i}\cdot \mathbf {e} _{j}=\delta _{ij},} where δ i j {\displaystyle \delta _{ij}} is the Kronecker delta. Also, by the geometric definition,...
    28 KB (4,321 words) - 19:09, 9 October 2024
  • matrix can also be written using the Kronecker delta notation: ( I n ) i j = δ i j . {\displaystyle (I_{n})_{ij}=\delta _{ij}.} When A {\displaystyle A} is...
    6 KB (841 words) - 10:08, 17 October 2024
  • tensor. For Riemannian manifolds, it is the Kronecker delta η a b = δ a b {\displaystyle \eta _{ab}=\delta _{ab}} . For pseudo-Riemannian manifolds, it...
    47 KB (8,234 words) - 15:50, 25 October 2024
  • space Einstein notation Exterior algebra Inner product Outer product Kronecker delta Levi-Civita symbol Multilinear form Pseudoscalar Pseudovector Spinor...
    6 KB (661 words) - 02:59, 5 March 2024
  • {1}{2}}\left(\delta _{i}^{k}\delta _{j}^{l}+\delta _{i}^{l}\delta _{j}^{k}\right)} where δ n m {\displaystyle \delta _{n}^{m}} is the Kronecker delta. Unless...
    20 KB (3,399 words) - 12:38, 29 April 2024
  • Thumbnail for Covariance and contravariance of vectors
    g ( Y i , X j ) = δ j i , {\displaystyle g(Y^{i},X_{j})=\delta _{j}^{i},} the Kronecker delta. In terms of these bases, any vector v can be written in...
    34 KB (5,426 words) - 19:30, 21 September 2024
  • }}\end{cases}}} where δ j i {\displaystyle \delta _{j}^{i}} is the Kronecker delta symbol. To perform operations with a vector, we must have a straightforward...
    9 KB (1,721 words) - 11:46, 12 January 2024
  • Thumbnail for Heaviside step function
    H [ n − 1 ] . {\displaystyle \delta [n]=H[n]-H[n-1].} This function is the cumulative summation of the Kronecker delta: H [ n ] = ∑ k = − ∞ n δ [ k ]...
    14 KB (2,098 words) - 10:56, 31 October 2024
  • Z_{ik}Z^{jk}=\delta _{i}^{j}} For an orthonormal Cartesian coordinate system, the metric tensor is just the kronecker delta δ i j {\displaystyle \delta _{ij}}...
    13 KB (1,906 words) - 15:42, 3 October 2024
  • generally in a free module, it refers to the standard basis defined by the Kronecker delta. In a polynomial ring, it refers to its standard basis given by the...
    14 KB (2,579 words) - 03:01, 24 March 2024
  • summation is not to be applied, it is normal to note that explicitly. Kronecker delta Levi-Civita symbol Covariant tensor Contravariant tensor The classical...
    8 KB (1,028 words) - 11:00, 27 October 2024
  • Thumbnail for Eigenfunction
    _{\Omega }\ u_{i}^{*}(t)u_{j}(t)dt=\delta _{ij}={\begin{cases}1&i=j\\0&i\neq j\end{cases}},} where δij is the Kronecker delta and can be thought of as the elements...
    17 KB (2,346 words) - 17:02, 10 October 2022
  • , y , z {\displaystyle x,y,z} and δ i j {\displaystyle \delta _{ij}} is the Kronecker delta. This means that x , y , z {\displaystyle x,y,z} must be...
    12 KB (1,983 words) - 17:17, 12 August 2024
  • i=j\\0&\mathrm {if} \ i\not =j.\end{cases}}} That is, θi[f](Xj) = δji, the Kronecker delta. Let θ [ f ] = [ θ 1 [ f ] θ 2 [ f ] ⋮ θ n [ f ] ] . {\displaystyle...
    56 KB (8,866 words) - 08:52, 9 August 2024