Results 21 to 30 of about 8,548 (279)

Summability Factors for Cesaro Methods [PDF]

Proceedings of the American Mathematical Society, 1979
It is shown that if each of r and s is a nonnegative integer and { f p } \{ {f_p}\} is a complex sequence such that Σ f p a p \Sigma {f_p}
openaire   +1 more source

Comparison of speeds of convergence in Riesz-type families of summability methods; pp. 70–80 [PDF]

Proceedings of the Estonian Academy of Sciences, 2008
We deal with Riesz-type families (see Proc. Estonian Acad. Sci. Phys. Math., 2002, 51, 18–34 and Acta Sci. Math. (Szeged), 2004, 70, 639–657) of summability methods Aα for converging functions and sequences.
Anna Šeletski, Anne Tali
doaj   +1 more source

Exponential Operators, Dobinski Relations and Summability [PDF]

, 2005
We investigate properties of exponential operators preserving the particle number using combinatorial methods developed in order to solve the boson normal ordering problem.
A Gawron, A Horzela, A I Solomon, Aldrovandi R, Blasiak P, Comtet L, Dattoli G, K A Penson, Katriel J, Louisell W H, P Blasiak   +10 more
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Absolute almost weighted summability methods

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
In thepresent paper we introduce absolute almost weighted convergent series and treatwith the classical results of Bor [3-4] and also study some its relations tothe well known spaces.
Mehmet Ali Sarıgöl
doaj   +1 more source

On Dirichlet convolution method

International Journal of Mathematics and Mathematical Sciences, 1998
In this paper we have proved limitation theorem for (D,h(n)) summability methods and have shown that it is best possible.
Indulata Sukla
doaj   +1 more source

Comparison theorems for summability methods of sequences of fuzzy numbers

, 2017
In this study we compare Ces\`{a}ro and Euler weighted mean methods of summability of sequences of fuzzy numbers with Abel and Borel power series methods of summability of sequences of fuzzy numbers. Also some results dealing with series of fuzzy numbers
Yavuz, Enes
core   +3 more sources

Distributional versions of Littlewood's Tauberian theorem [PDF]

, 2010
We provide several general versions of Littlewood's Tauberian theorem. These versions are applicable to Laplace transforms of Schwartz distributions. We apply these Tauberian results to deduce a number of Tauberian theorems for power series where Ces\`{a}
A. E. Ingham, A. Tauber, G. H. Hardy, G. H. Hardy, G. H. Hardy, I. Çanak, J. E. Littlewood, J. Korevaar, J. N. Drozzinov, J. Peetre, J. Vindas, J. Vindas, J. Vindas, Jasson Vindas, L. Schwartz, N. Wiener, O. Szász, R. Estrada, R. Estrada, R. Estrada, R. Estrada, R. Estrada, Ricardo Estrada, S. Pilipović, S. Pilipović, S. Pilipović, V. S. Vladimirov, V. S. Vladimirov   +27 more
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On an inclusion theorem

International Journal of Mathematics and Mathematical Sciences, 2000
We have established a relation between θ−|R,pn|k and θ−|R,qn|k summability methods, k>1, which generalizes a result of Sunouchi (1949) on |R,pn| and |R,qn| summability methods.
Hüseyin Bor
doaj   +1 more source

On Strong Approximation in Generalized Hölder and Zygmund Spaces

Computer Sciences & Mathematics Forum, 2023
The strong approximation of a function is a useful tool to analyze the convergence of its Fourier series. It is based on the summability techniques. However, unlike matrix summability methods, it uses non-linear methods to derive an auxiliary sequence ...
Birendra Singh, Uaday Singh
doaj   +1 more source

Borel summability and Lindstedt series

, 2006
Resonant motions of integrable systems subject to perturbations may continue to exist and to cover surfaces with parametric equations admitting a formal power expansion in the strength of the perturbation.
A. Giuliani, A.D. Sokal, F. Nevanlinna, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gallavotti, G. Gentile, O. Costin   +9 more
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