Results 71 to 80 of about 610,583 (235)
The Liouville theorem for a class of Fourier multipliers and its connection to coupling
Bulletin of the London Mathematical Society, Volume 56, Issue 7, Page 2374-2394, July 2024.Abstract The classical Liouville property says that all bounded harmonic functions in Rn$\mathbb {R}^n$, that is, all bounded functions satisfying Δf=0$\Delta f = 0$, are constant. In this paper, we obtain necessary and sufficient conditions on the symbol of a Fourier multiplier operator m(D)$m(D)$, such that the solutions f$f$ to m(D)f=0$m(D)f=0$ are ...
David Berger +2 more
wiley +1 more source
Factorable matrices and their associated Riesz matrices; pp. 379–386 [PDF]
Proceedings of the Estonian Academy of Sciences, 2014 A factorable matrix is a natural generalization of a Riesz matrix. When considering the properties of factorable matrices, many authors have used methods similar to the methods for Riesz matrices.
Maria Zeltser
doaj +1 more source
Tauberian and Abelian theorems for long-range dependent random fields
, 2012 This paper surveys Abelian and Tauberian theorems for long-range dependent random fields. We describe a framework for asymptotic behaviour of covariance functions or variances of averaged functionals of random fields at infinity and spectral densities at
Leonenko, Nikolai, Olenko, Andriy
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Approximation of the semi-infinite interval
International Journal of Mathematics and Mathematical Sciences, 1980 The approximation of a function f∈C[a,b] by Bernstein polynomials is well-known. It is based on the binomial distribution. O. Szasz has shown that there are analogous approximations on the interval [0,∞) based on the Poisson distribution.
A. McD. Mercer
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On logarithmic averages of sequences and its applications
Kuwait Journal of Science, 2016 In this paper, we investigate summability methods of logarithmic averages of the numerical sequences and its applications such as Tauberian type theorems.
Umit Totur, Muhammet A. Okur
doaj
Some Tauberian theorems for Euler and Borel summability
International Journal of Mathematics and Mathematical Sciences, 1980 The well-known summability methods of Euler and Borel are studied as mappings from ℓ1 into ℓ1. In this ℓ−ℓ setting, the following Tauberian results are proved: if x is a sequence that is mapped into ℓ1 by the Euler-Knopp method Er with r>0 (or the Borel ...
J. A. Fridy, K. L. Roberts
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Generalized riesz method and convergence acceleration
Mathematical Modelling and Analysis, 2004 Several propositions on A‐boundedness for generalized Riesz method (5ft, Pn), where Pn are linear bounded operators from Banach space X into X, are proved.
I. Tammeraid
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Some extended Tauberian theorems for (A)(k) (C, α) summability method
Acta Scientiarum: Technology, 2014 In this paper, some new Tauberian conditions are introduced for (A)(k) (C, α) summability method.
İbrahim Çanak
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Analytic combinatorics for a certain well-ordered class of iterated exponential terms [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 The aim of this paper is threefold: firstly, to explain a certain segment of ordinals in terms which are familiar to the analytic combinatorics community, secondly to state a great many of associated problems on resulting count functions and thirdly, to ...
Andreas Weiermann
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A uniform Tauberian theorem in optimal control [PDF]
, 2010 In an optimal control framework, we consider the value $V_T(x)$ of the problem starting from state $x$ with finite horizon $T$, as well as the value $V_\lambda(x)$ of the $\lambda$-discounted problem starting from $x$.
Oliu-Barton, Miquel, Vigeral, Guillaume
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