Operator Nörlund means

1980 ◽  
pp. 106-116
Author(s):  
Ivor J. Maddox
Keyword(s):  
Nörlund Means

Nörlund Means and Almost Convergence

1978 ◽  
Vol s2-17 (2) ◽  
pp. 317-320
Author(s):  
I. J. Maddox
Keyword(s):  
Almost Convergence ◽  
Nörlund Means

On functional Nörlund methods

1970 ◽  
Vol 67 (1) ◽  
pp. 47-60 ◽  
Author(s):  
B. Choudhary
Keyword(s):  
The Other ◽  
Integral Transformations ◽  
Other Hand ◽  
Nörlund Means ◽  
The One ◽  
Image Position

Integral transformations analogous to the Nörlund means have been introduced and investigated by Kuttner, Knopp and Vanderburg(6), (5), (4). It is known that with any regular Nörlund mean (N, p) there is associated a functionregular for |z| < 1, and if we have two Nörlund means (N, p) and (N, r), where (N, pr is regular, while the function is regular for |z| ≤ 1 and different) from zero at z = 1, then q(z) = r(z)p(z) belongs to a regular Nörlund mean (N, q). Concerning Nörlund means Peyerimhoff(7) and Miesner (3) have recently obtained the relation between the convergence fields of the Nörlund means (N, p) and (N, r) on the one hand and the convergence field of the Nörlund mean (N, q) on the other hand.

Uniform summability of power series

1972 ◽  
Vol 71 (2) ◽  
pp. 335-341 ◽  
Author(s):  
J. C. Kurtz ◽  
W. T. Sledd
Keyword(s):  
Banach Space ◽  
Power Series ◽  
Normal Matrix ◽  
Cesàro Means ◽  
Summability Factors ◽  
Cesaro Means ◽  
Space Topology ◽  
Nörlund Means ◽  
Summability Field ◽  
Cesáro Means

AbstractIt is shown that for the Cesàro means (C, α) with α > - 1, and for a certain class of more general Nörlund means, summability of the series σan implies uniform summability of the series σan zn in a Stolz angle at z = 1.If B is a normal matrix and (B) denotes the series summability field with the usual Banach space topology, then the vectors {ek} (ek = {0,0,..., 1,0,...}) are said to form a Toplitz basis for (B) relative to a method H if H — Σakek = a for each a = {ak}ε(B). It is shown for example that the above relation holds for B = (C,α), α> − 1 , and H = Abel method; also for B = (C,α) and H = (C,β) with 0 ≤ α ≤ β.Applications are made to theorems on summability factors.

scholarly journals Sharp H p $H_{p}$ - L p $L_{p}$ type inequalities of weighted maximal operators of Vilenkin-Nörlund means and its applications

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
Lasha Baramidze ◽  
Lars-Erik Persson ◽  
George Tephnadze ◽  
Peter Wall
Keyword(s):  
Maximal Operators ◽  
Nörlund Means ◽  
P Type

scholarly journals A note on a multiplier of the Norlund means and convex maps of the unit disc

2005 ◽  
Vol 2005 (20) ◽  
pp. 3351-3357
Author(s):  
Ziad S. Ali
Keyword(s):  
Unit Disc ◽  
Nörlund Means ◽  
Special Cases

Important and interesting results which are already known such as those by Pólya and Schoenberg in (1958), Başgöze et al. in (1970), and Ali in (1973), and which are related to convex maps of the unit disc are presented in this note by a more general, unified, and different method. The method considers the product of a nontrivial multiplier with the Norlund means, and shows how the known results indicated above are reproduced again as special cases.

A Tauberian theorem for absolute quasi-Nörlund means

Analysis ◽  
2009 ◽  
Vol 29 (1) ◽  
Author(s):  
Gokulananda Das
Keyword(s):  
Tauberian Theorem ◽  
Nörlund Means
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