• Thumbnail for Lebesgue integration
    that function and the X axis. The Lebesgue integral, named after French mathematician Henri Lebesgue, extends the integral to a larger class of functions...
    40 KB (5,660 words) - 12:07, 25 February 2024
  • Thumbnail for Henri Lebesgue
    aire ("Integral, length, area") at the University of Nancy during 1902. Henri Lebesgue was born on 28 June 1875 in Beauvais, Oise. Lebesgue's father was...
    18 KB (2,082 words) - 07:05, 6 May 2024
  • Thumbnail for Integral
    early 20th century, Henri Lebesgue generalized Riemann's formulation by introducing what is now referred to as the Lebesgue integral; it is more general than...
    68 KB (9,156 words) - 14:01, 6 May 2024
  • theorem is named for Henri Lebesgue. For a Lebesgue integrable real or complex-valued function f on Rn, the indefinite integral is a set function which maps...
    11 KB (1,697 words) - 00:55, 14 November 2023
  • Just like the Lebesgue version of (classical) integrals, one can compute product integrals by approximating them with the product integrals of simple functions...
    24 KB (3,834 words) - 02:05, 24 December 2023
  • Pettis integral or Gelfand–Pettis integral, named after Israel M. Gelfand and Billy James Pettis, extends the definition of the Lebesgue integral to vector-valued...
    11 KB (2,100 words) - 02:47, 26 October 2023
  • integrals (Integraltafeln) and techniques of integral calculus was published by the German mathematician Meier Hirsch [de] (also spelled Meyer Hirsch) in 1810...
    29 KB (5,617 words) - 21:09, 30 January 2024
  • Thumbnail for Cantor function
    monotonically grow. It is also called the Cantor ternary function, the Lebesgue function, Lebesgue's singular function, the Cantor–Vitali function, the Devil's staircase...
    21 KB (3,375 words) - 20:14, 30 March 2024
  • Thumbnail for Fourier transform
    rapid decreasing, that the integral Eq.1 converges for all real ξ {\displaystyle \xi } , and (using the Riemann–Lebesgue lemma) that the transformed...
    177 KB (21,038 words) - 12:05, 19 May 2024
  • (considering functions which differ from each other only on a point set having Lebesgue measure zero as the same). This result was first proven by Mathias Lerch...
    8 KB (1,004 words) - 09:51, 20 January 2024
  • Thumbnail for Charles Jean de la Vallée Poussin
    its introduction of the Lebesgue integral. It was in 1912, "the only textbook on analysis containing both Lebesgue integral and its application to Fourier...
    12 KB (1,387 words) - 09:39, 15 March 2024
  • are called the Lebesgue points of f. Using this theorem it follows that if f is an integrable function on the circle, the Poisson integral Trf tends pointwise...
    70 KB (12,876 words) - 17:56, 1 August 2023
  • Haar measure (redirect from Haar Integral)
    Lebesgue integration, one can then define an integral for all Borel measurable functions f {\displaystyle f} on G {\displaystyle G} . This integral is...
    31 KB (5,360 words) - 23:32, 29 December 2023
  • function FX of X, with the expected value of g(X) now given by the Lebesgue–Stieltjes integral E ⁡ [ g ( X ) ] = ∫ − ∞ ∞ g ( x ) d F X ( x ) . {\displaystyle...
    14 KB (2,085 words) - 15:17, 27 October 2023
  • Laplace transform (category Integral transforms)
    {\displaystyle |f(t)|\leq Ae^{B|t|}} ), the integral can be understood to be a (proper) Lebesgue integral. However, for many applications it is necessary...
    68 KB (8,159 words) - 16:09, 2 May 2024
  • bestemte Integraler (Solution de quelques problèmes à l'aide d'intégrales définies, Solution of a couple of problems by means of definite integrals)" (PDF)...
    57 KB (7,146 words) - 10:14, 19 May 2024
  • Thumbnail for Expected value
    immediately from those of Lebesgue integral. Note that the letters "a.s." stand for "almost surely"—a central property of the Lebesgue integral. Basically, one...
    52 KB (7,652 words) - 17:21, 17 May 2024
  • d W t {\displaystyle \int f\;dW_{t}} be the Wiener integral, d t {\displaystyle dt} be the Lebesgue measure. Further let H {\displaystyle \mathbf {H} }...
    6 KB (1,018 words) - 01:41, 19 April 2024
  • greatly extended. Henri Lebesgue invented measure theory, based on earlier developments by Émile Borel, and used it to define integrals of all but the most...
    73 KB (8,575 words) - 02:33, 6 May 2024
  • In mathematics, the Riemann–Liouville integral associates with a real function f : R → R {\displaystyle f:\mathbb {R} \rightarrow \mathbb {R} } another...
    16 KB (2,611 words) - 18:33, 13 January 2024
  • theory, a standard probability space, also called Lebesgue–Rokhlin probability space or just Lebesgue space (the latter term is ambiguous) is a probability...
    28 KB (4,350 words) - 02:07, 6 May 2024
  • Thumbnail for Dirac delta function
    0 are equal everywhere except at x = 0 yet have integrals that are different. According to Lebesgue integration theory, if f and g are functions such...
    93 KB (13,792 words) - 11:24, 11 May 2024
  • Stratonovich integral can readily be expressed in terms of the Itô integral, and vice versa. The main benefit of the Stratonovich integral is that it obeys...
    5 KB (551 words) - 08:22, 19 March 2024
  • Thumbnail for Hilbert space
    development was the Lebesgue integral, an alternative to the Riemann integral introduced by Henri Lebesgue in 1904. The Lebesgue integral made it possible...
    128 KB (17,476 words) - 16:39, 21 April 2024
  • Thumbnail for Convolution
    It is defined as the integral of the product of the two functions after one is reflected about the y-axis and shifted. The integral is evaluated for all...
    67 KB (8,779 words) - 16:25, 20 May 2024
  • an integral on the real line that was very similar in construction and simplicity to the Riemann integral but which included the Lebesgue integral and...
    14 KB (1,672 words) - 14:21, 19 August 2023
  • the surface integral of a vector field over a closed surface, which is called the "flux" through the surface, is equal to the volume integral of the divergence...
    45 KB (7,507 words) - 07:51, 12 May 2024
  • and in the path integral approach to the quantum mechanics of particles and fields. In an ordinary integral (in the sense of Lebesgue integration) there...
    10 KB (1,801 words) - 23:18, 24 April 2023
  • In mathematics, integrals of inverse functions can be computed by means of a formula that expresses the antiderivatives of the inverse f − 1 {\displaystyle...
    10 KB (1,696 words) - 02:59, 19 March 2024
  • Fundamental Theorem of Multivariate Calculus. Stokes' theorem says that the integral of a differential form ω {\displaystyle \omega } over the boundary ∂ Ω...
    35 KB (4,830 words) - 19:24, 11 April 2024