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Wold decomposition

См. также в других словарях:

  • Wold decomposition — In operator theory, the Wold decomposition, or Wold von Neumann decomposition, is a classification theorem for isometric linear operators on a given Hilbert space. It states that any isometry is a direct sums of copies of the unilateral shift and …   Wikipedia

  • Wold's theorem — This article is about the theorem as used in time series analysis. For an abstract mathematical statement, see Wold decomposition. In statistics, Wold s decomposition or the Wold representation theorem (not to be confused with the Wold theorem… …   Wikipedia

  • Decomposition of time series — The decomposition of time series is a statistical method that deconstructs a time series into notional components. There are two principal types of decomposition which are outlined below. Contents 1 Decomposition based on rates of change 2… …   Wikipedia

  • Herman Wold — Herman Ole Andreas Wold (December 25, 1908 February 16, 1992) was a Swedish statistician known for his work in time series analysis and econometrics. Eponymous terms include the Wold decomposition and the Cramér Wold theorem.LifeHerman Wold was… …   Wikipedia

  • List of mathematics articles (W) — NOTOC Wad Wadge hierarchy Wagstaff prime Wald test Wald Wolfowitz runs test Wald s equation Waldhausen category Wall Sun Sun prime Wallenius noncentral hypergeometric distribution Wallis product Wallman compactification Wallpaper group Walrasian… …   Wikipedia

  • Contraction (operator theory) — In operator theory, a bounded operator T: X → Y between normed vector spaces X and Y is said to be a contraction if its operator norm ||T|| ≤ 1. Every bounded operator becomes a contraction after suitable scaling. The analysis of… …   Wikipedia

  • Shift operator — In mathematics, and in particular functional analysis, the shift operators are examples of linear operators, important for their simplicity and natural occurrence. They are used in diverse areas, such as Hardy spaces, the theory of abelian… …   Wikipedia

  • Composition operator — For information about the operator ∘ of composition, see function composition and composition of relations. In mathematics, the composition operator Cϕ with symbol ϕ is a linear operator defined by the rule where denotes function composition. In… …   Wikipedia

  • Toeplitz algebra — In operator algebras, the Toeplitz algebra is the C* algebra generated by the unilateral shift on the Hilbert space l 2(N). Taking l 2(N) to be the Hardy space H 2, the Toeplitz algebra consists of elements of the form:T f + K;where Tf is a… …   Wikipedia

  • Projet:Mathématiques/Liste des articles de mathématiques — Cette page n est plus mise à jour depuis l arrêt de DumZiBoT. Pour demander sa remise en service, faire une requête sur WP:RBOT Cette page recense les articles relatifs aux mathématiques, qui sont liés aux portails de mathématiques, géométrie ou… …   Wikipédia en Français

  • Liste des articles de mathematiques — Projet:Mathématiques/Liste des articles de mathématiques Cette page recense les articles relatifs aux mathématiques, qui sont liés aux portails de mathématiques, géométrie ou probabilités et statistiques via l un des trois bandeaux suivants  …   Wikipédia en Français

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