Results 11 to 20 of about 132 (64)
On an application of almost increasing sequences [PDF]
International Journal of Mathematics and Mathematical Sciences, Volume 27, Issue 1, Page 7-15, 2001., 2001 Using an almost increasing sequence, a result of Mazhar (1977) on |C,1|k summability factors has been generalized for |C,α;β|k and |N¯,pn;β|k summability factors under weaker ...
Hüseyın Bor
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Some Tauberian theorems for Euler and Borel summability [PDF]
International Journal of Mathematics and Mathematical Sciences, Volume 3, Issue 4, Page 731-738, 1980., 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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An ordered set of Nörlund means [PDF]
International Journal of Mathematics and Mathematical Sciences, Volume 4, Issue 2, Page 353-364, 1981., 1981 Nörlund methods of summability are studied as mappings from ℓ1 into ℓ1. Those Nörlund methods that map ℓ1 into ℓ1 are characterized.
J. Defranza
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A generalization theorem covering many absolute summability methods [PDF]
International Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 1, Page 15-20, 2001., 2001 A general theorem concerning many absolute summability methods is proved.
W. T. Sulaiman
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A summability factor theorem for absolute summability involving almost increasing sequences
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 69, Page 3793-3797, 2004., 2004 We obtain sufficient conditions for the series ∑anλn to be absolutely summable of order k by a triangular matrix.
B. E. Rhoades, Ekrem Savaş
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Approximation of functions and their conjugates in Lp and uniform metric by Euler means
Demonstratio Mathematica, 2018 For 2π-periodic functions from Lp (where 1 < p < ∞) we prove an estimate of approximation by Euler means in Lp metric generalizing a result of L. Rempuska and K. Tomczak. Furthermore, we show that this estimate is sharp in a certain sense.
Volosivets Sergey S., Tyuleneva Anna A.
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On the order of summability of the Fourier inversion formula [PDF]
, 2010 In this article we show that the order of the point value, in the sense of Łojasiewicz, of a tempered distribution and the order of summability of the pointwise Fourier inversion formula are closely related.
A. Denjoy +44 more
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International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 65, Page 3499-3511, 2004., 2004 After a brief summary of Tauberian conditions for ordinary sequences of numbers, we consider summability of double sequences of real or complex numbers by weighted mean methods which are not necessarily products of related weighted mean methods in one variable.
Ferenc Móricz, U. Stadtmüller
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On Tauber's second Tauberian theorem [PDF]
, 2012 We study Tauberian conditions for the existence of Cesàro limits in terms of the Laplace transform. We also analyze Tauberian theorems for the existence of distributional point values in terms of analytic representations.
Estrada, Ricardo, Vindas Diaz, Jasson
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Integrability and L1‐convergence of Rees‐Stanojević sums with generalized semiconvex coefficients
International Journal of Mathematics and Mathematical Sciences, Volume 30, Issue 11, Page 645-650, 2002., 2002 Integrability and L1‐convergence of modified cosine sums introduced by Rees and Stanojević (1973) under a class of generalized semiconvex null coefficients are studied, using Cesaro means of integral order.
Kulwinder Kaur, S. S. Bhatia
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