• Borel, then an unknown young man, discovered that his summation method gave the 'right' answer for many classical divergent series. He decided to make...
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  • with explicit and natural techniques such as Abel summation, Cesàro summation and Borel summation, and their relationships. The advent of Wiener's tauberian...
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  • same. Abel summation Abel's summation formula Abel–Plana formula Abelian and tauberian theorems Almost convergent sequence Borel summation Divergent series...
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  • of these methods are strictly weaker than Borel summation; for q > 0 they are incomparable with Abel summation. For some value y we may define the Euler...
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  • Thumbnail for Émile Borel
    theorem Borel right process Borel set Borel summation Borel distribution Borel's conjecture about strong measure zero sets (not to be confused with Borel conjecture...
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  • divergent, it can be assigned a value of approximately 0.596347 by Borel summation. This series was first considered by Euler, who applied summability...
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  • results in the renormalization of quantum field theories. Borel summation Cesàro summation Divergent series Ramanujan's sum Abel–Plana formula Berndt...
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  • In mathematics, Mittag-Leffler summation is any of several variations of the Borel summation method for summing possibly divergent formal power series...
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  • usual formula. The Borel sum of 1 − 2 + 4 − 8 + ⋯ is also ⁠1/3⁠; when Émile Borel introduced the limit formulation of Borel summation in 1896, this was...
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  • Thumbnail for Gunnar Kangro
    generalized Borel theory of summation, and applied this to study problems connected to convergence of complex power series. He defined new summation methods...
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  • to give the domain of convergence of the generalized Borel transform, also called Nachbin summation. This article provides a brief review of growth rates...
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  • In mathematics, Borel transform may refer to A transform used in Borel summation A generalization of this in Nachbin's theorem This disambiguation page...
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  • The theory evolved from the summability of divergent series (see Borel summation) and treats analytic functions with isolated singularities. He introduced...
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  • Thumbnail for 1 + 2 + 3 + 4 + ⋯
    functions is identified as one of two broad classes of summation methods, including Abel and Borel summation, by Knopp, Konrad (1990) [1922]. Theory and Application...
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  • series. Summation methods include Cesàro summation, generalized Cesàro ⁠ ( C , α ) {\displaystyle (C,\alpha )} ⁠ summation, Abel summation, and Borel summation...
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  • Thumbnail for 1 − 2 + 3 − 4 + ⋯
    Euler summable to 1⁄4. The Euler summability also implies Borel summability, with the same summation value, as it does in general. Saichev and Woyczyński arrive...
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  • rates. Renormalons, a possible type of singularity arising when using Borel summation. It is a counterpart of an instanton singularity. A bradyon (or tardyon)...
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  • Borel–Cantelli lemma, Borel–Carathéodory theorem, Heine–Borel theorem, Borel summation, Borel distribution Alexander Borodin, Russian composer and chemist...
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  • Thumbnail for Exponential type
    convergent summations over a series of other complex functions, as well as understanding when it is possible to apply techniques such as Borel summation, or...
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  • When a formally divergent series in a QFT is summed using Borel summation, the associated Borel transform of the series can have singularities as a function...
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  • Cesàro summation Euler summation Lambert summation Borel summation Summation by parts – transforms the summation of products of into other summations Cesàro...
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  • which summation methods produce the geometric series formula for which common ratios. One application for this information is the so-called Borel-Okada...
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  • anti-Stokes lines meeting at a. Mathematics portal Physics portal Borel summation Berry, M. V. (1988), "Stokes' phenomenon; smoothing a Victorian discontinuity...
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  • Abel summation Cesàro summation Lindelöf summation Euler summation Borel summation Mittag-Leffler summation Lambert summation Euler–Boole summation and...
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  • many summation methods that respect these manipulations and that do assign a "sum" to Grandi's series. Two of the simplest methods are Cesàro summation and...
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  • Thumbnail for Law of total probability
    terms are simply omitted from the summation since P ( A ∣ B n ) {\displaystyle P(A\mid B_{n})} is finite. The summation can be interpreted as a weighted...
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  • higher dimensions. In the latter case, one needs to specify the order of summation, e.g. "a set of uniqueness with respect to summing over balls". To understand...
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  • formal operations on transseries) using accelero-summation, which is a generalization of Borel summation. Transseries can be formalized in several equivalent...
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  • _{\alpha \to 0^{+}}\sum _{n}c_{n}e^{-\alpha n^{2}}.} Abel's theorem Borel summation Zel’Dovich, Y. B. (1961). On the theory of unstable states. Sov. Phys...
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  • Thumbnail for Convolution
    choice. The summation is called a periodic summation of the function f {\displaystyle f} . When g T {\displaystyle g_{T}} is a periodic summation of another...
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