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Stationary and Isotropic Random Functions

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Bernoulli 1713 Bayes 1763 Laplace 1813

Abstract

We are going to deal with random functions \(X(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M})=X({{x}_{1}},...,{{x}_{n}})\) of a point \(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M} \in {E_n}\) (E n : n-dimensional Euclidean space). We assume:

  1. (1)
    $$E\left[ X(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M})\right]\equiv0.$$
    (1.1)
  2. (2)
    $$ X(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M})$$

    to be a second order stationary random function

    1. (a)
      $$E\left[ X\left( {\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M}}\right)X*\left(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M}-\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{N}\right)\right]=C\left[{\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{N}}\right].$$
      (1.2a)
    2. (b)
      $$ X(\underset{\raise0.3em\hbox{$\smash{\scriptscriptstyle\thicksim}$}}{M})$$
      (1.2b)

      is continuous in quadratic mean.

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References

  1. Faure, P.: Sur quelques résultats relatifs aux fonctions aléatoires stationnaires isotropes introduites dans l’étude expérimentale de certains phénomènes de fluctuations. C. R. Acad. Sci. (Paris) 244, 842 (1957). Thèse de Doctorat de 3ième cycle, Algiers, 1957.)

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  2. Faure, P.: Déduction de certaines propriétés statistiques d’une fonction aléatoire stationnaire isotrope définie dans un espace à plusieurs dimensions de l’étude de sa trace sur une courbe de cet espace. C. R. Acad. Sci. (Paris) 244, 998 (1957). Erratum 244, 1843. (These publications contain the mathematical results on the stationary and isotropic random functions.)

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Jerzy Neyman Lucien M. Le Cam

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© 1965 Springer-Verlag Berlin · Heidelberg

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Blanc-Lapierre, A., Faure, P. (1965). Stationary and Isotropic Random Functions. In: Neyman, J., Le Cam, L.M. (eds) Bernoulli 1713 Bayes 1763 Laplace 1813. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-99884-3_3

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  • DOI: https://doi.org/10.1007/978-3-642-99884-3_3

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-03260-1

  • Online ISBN: 978-3-642-99884-3

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