scholarly journals Onk-nearly uniform convex property in generalized Cesàro sequence spaces

2003 ◽  
Vol 2003 (57) ◽  
pp. 3599-3607 ◽  
Author(s):  
Winate Sanhan ◽  
Suthep Suantai
Keyword(s):  
Sequence Space ◽  
Bounded Sequence ◽  
Sequence Spaces ◽  
Luxemburg Norm ◽  
Real Numbers ◽  
Positive Real ◽  
Generalized Cesáro Sequence Space ◽  
Convex Property

We define a generalized Cesàro sequence spaceces(p), wherep=(pk)is a bounded sequence of positive real numbers, and consider it equipped with the Luxemburg norm. The main purpose of this paper is to show thatces(p)isk-nearly uniform convex (k-NUC) fork≥2whenlimn→∞infpn>1. Moreover, we also obtain that the Cesàro sequence spacecesp(where 1<p<∞)isk-NUC,kR, NUC, and has a drop property.

scholarly journals ON GENERALIZED FIBONACCI DIFFERENCE SPACE DERIVED FROM THE ABSOLUTELY p− SUMMABLE SEQUENCE SPACES

2019 ◽  
pp. 903
Author(s):  
Gülsen Kılınç
Keyword(s):  
Sequence Space ◽  
Bounded Sequence ◽  
Sequence Spaces ◽  
The Other ◽  
Matrix Transformations ◽  
Real Numbers ◽  
Positive Real ◽  
Topological Features ◽  
Summable Sequence ◽  
Alpha Beta

In this study, it is specified \emph{the sequence space} $l\left( F\left( r,s\right),p\right) $, (where $p=\left( p_{k}\right) $ is any bounded sequence of positive real numbers) and researched some algebraic and topological features of this space. Further, $\alpha -,$ $\beta -,$ $\gamma -$ duals and its Schauder Basis are given. The classes of \emph{matrix transformations} from the space $l\left( F\left( r,s\right) ,p\right) $ to the spaces $l_{\infty },c,$ and $% c_{0}$ are qualified. Additionally, acquiring qualifications of some other \emph{matrix transformations} from the space $l\left( F\left( r,s\right) ,p\right) $ to the \emph{Euler, Riesz, difference}, etc., \emph{sequence spaces} is the other result of the paper.

scholarly journals On matrix transformations concerning the Nakano vector-valued sequence space

2001 ◽  
Vol 26 (11) ◽  
pp. 671-678
Author(s):  
Suthep Suantai
Keyword(s):  
Sequence Space ◽  
Sequence Spaces ◽  
Matrix Transformations ◽  
Real Numbers ◽  
Positive Real ◽  
The Matrix ◽  
Vector Valued ◽  
Bounded Sequences

We give the matrix characterizations from Nakano vector-valued sequence spaceℓ(X,p)andFr(X,p)into the sequence spacesEr,ℓ∞,ℓ¯∞(q),bs, andcs, wherep=(pk)andq=(qk)are bounded sequences of positive real numbers such thatPk>1for allk∈ℕandr≥0.

scholarly journals Mr-factors andQr-factors for near quasinorm on certain sequence spaces

2005 ◽  
Vol 2005 (15) ◽  
pp. 2441-2445
Author(s):  
Piyapong Niamsup ◽  
Yongwimon Lenbury
Keyword(s):  
Bounded Sequence ◽  
Sequence Spaces ◽  
Real Numbers ◽  
Positive Real

We study the multiplicativity factor and quadraticity factor for near quasinorm on certain sequence spaces of Maddox, namely,l(p)andl∞(p), wherep=(pk)is a bounded sequence of positive real numbers.

On Some Convexity Properties of Generalized Cesáro Sequence Spaces

2003 ◽  
Vol 10 (1) ◽  
pp. 193-200 ◽  
Author(s):  
Suthep Suantai
Keyword(s):  
Banach Space ◽  
Sequence Space ◽  
Sequence Spaces ◽  
Luxemburg Norm ◽  
Convexity Properties ◽  
Generalized Cesáro Sequence Space

Abstract We define a generalized Cesáro sequence space and consider it equipped with the Luxemburg norm under which it is a Banach space, and we show that it is locally uniformly rotund.

scholarly journals On paranormed Ideal convergent sequence spaces defined by Jordan totient function

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Vakeel A. Khan ◽  
Umme Tuba
Keyword(s):  
Law Of Large Numbers ◽  
Convergent Sequence ◽  
Decomposition Theorem ◽  
Bounded Sequence ◽  
Sequence Spaces ◽  
Usual Sense ◽  
Real Numbers ◽  
Positive Real ◽  
Large Numbers ◽  
Inclusion Relations

AbstractThe study of sequence spaces and summability theory has been an important aspect in defining new notions of convergence for the sequences that do not converge in the usual sense. Paving the way into the applications of law of large numbers and theory of functions, it has proved to be an essential tool. In this paper we generalise the classical Maddox sequence spaces $c_{0}(p)$ c 0 ( p ) , $c(p)$ c ( p ) , $\ell (p)$ ℓ ( p ) and $\ell _{\infty }(p)$ ℓ ∞ ( p ) and define new ideal paranormed sequence spaces $c^{I}_{0}(\Upsilon ^{r}, p)$ c 0 I ( ϒ r , p ) , $c^{I}(\Upsilon ^{r}, p)$ c I ( ϒ r , p ) , $\ell ^{I}_{ \infty }(\Upsilon ^{r}, p)$ ℓ ∞ I ( ϒ r , p ) and $\ell _{\infty }(\Upsilon ^{r}, p)$ ℓ ∞ ( ϒ r , p ) defined with the aid of Jordan’s totient function and a bounded sequence of positive real numbers. We develop isomorphism between certain maps and also find their α-, β- and γ-duals. We examine algebraic and topological properties of these corresponding spaces. Further we study some standard inclusion relations and prove the decomposition theorem.

scholarly journals Matrix transformations and application to perturbed problems of some sequence spaces equations with operators

Filomat ◽  
2018 ◽  
Vol 32 (14) ◽  
pp. 5123-5130
Author(s):  
Malafosse de ◽  
Ali Fares ◽  
Ali Ayad
Keyword(s):  
Linear Space ◽  
Sequence Spaces ◽  
Matrix Transformations ◽  
Real Numbers ◽  
Positive Real ◽  
Complex Sequences ◽  
Perturbed Equation

Given any sequence z = (zn)n?1 of positive real numbers and any set E of complex sequences, we write Ez for the set of all sequences y = (yn)n?1 such that y/z = (yn/zn)n?1 ? E; in particular, cz = s(c) z denotes the set of all sequences y such that y/z converges. Starting with the equation Fx = Fb we deal with some perturbed equation of the form ? + Fx = Fb, where ? is a linear space of sequences. In this way we solve the previous equation where ? =(Ea)T and (E,F) ? {(l?,c), (c0,l?), (c0,c), (lp,c), (lp,l?), (w0,l?)} with p ? 1, and T is a triangle.

scholarly journals A new type of paranorm intuitionistic fuzzy Zweier I-convergent double sequence spaces

Filomat ◽  
2019 ◽  
Vol 33 (5) ◽  
pp. 1279-1286 ◽  
Author(s):  
Vakeel Khan ◽  
Y Yasmeen ◽  
Hira Fatima ◽  
Henna Altaf
Keyword(s):  
Double Sequence ◽  
Sequence Spaces ◽  
Fuzzy Topology ◽  
Real Numbers ◽  
Positive Real ◽  
Double Sequence Spaces ◽  
Intuitionistic Fuzzy ◽  
New Type

In this article we introduce the paranorm type intuitionistic fuzzy Zweier I-convergent double sequence spaces 2ZI(?,v)(p) and 2ZI 0(?,v)(p) for p = (pij) a double sequence of positive real numbers and study the fuzzy topology on these spaces.

scholarly journals The sequence space BVIσ(p)

Filomat ◽  
2014 ◽  
Vol 28 (4) ◽  
pp. 829-838 ◽  
Author(s):  
Vakeel Khan ◽  
Khalid Ebadullah
Keyword(s):  
Sequence Space ◽  
Topological Properties ◽  
Real Numbers ◽  
Positive Real ◽  
Inclusion Relations

In this article we introduce the sequence space BVI?(p) for p=(pk), a sequence of positive real numbers and study the topological properties and some inclusion relations on this space.

The Structure of the Sequence Spaces of Maddox

1992 ◽  
Vol 44 (2) ◽  
pp. 298-307 ◽  
Author(s):  
Karl-Goswin ◽  
Grosse-Erdmann
Keyword(s):  
Structural Properties ◽  
Sequence Space ◽  
Space Structure ◽  
Bounded Sequence ◽  
Sequence Spaces

AbstractThe sequence of spaces of Maddox, c0(p), c(p)and l∞(p), are investigated. Here, p — (pk) is a bounded sequence of strictly positive numbers. It is observed that C0(P) is an echelon space of order 0 and that l∞(p) is a co-echelon space of order ∞, while clearly c(p) = c0(p) ⊗ 〈 (1,1,1,…) 〉. This sheds a new light on the topological and sequence space structure of these spaces: Based on the highly developed theory of (co-) echelon spaces all known and various new structural properties are derived.

scholarly journals Some Compact Operators on the Hahn Space

2021 ◽  
Vol 1 (1) ◽  
pp. 1-15
Author(s):  
Eberhard Malkowsky
Keyword(s):  
Hausdorff Measure ◽  
Sequence Space ◽  
Measure Of Noncompactness ◽  
Compact Operators ◽  
Linear Operators ◽  
Hausdorff Measure Of Noncompactness ◽  
Real Numbers ◽  
Positive Real ◽  
Bounded Linear Operators ◽  
Bounded Linear

We establish the characterisations of the classes of bounded linear operators from the generalised Hahn sequence space $h_{d}$, where $d$ is an unbounded monotone increasing sequence of positive real numbers, into the spaces $[c_{0}]$, $[c]$ and $[c_{\infty}]$ of sequences that are strongly convergent to zero, strongly convergent and strongly bounded. Furthermore, we prove estimates for the Hausdorff measure of noncompactness of bounded linear operators from $h_{d}$ into $[c]$, and identities for the Hausdorff measure of noncompactness of bounded linear operators from $h_{d}$ to $[c_{0}]$, and use these results to characterise the classes of compact operators from $h_{d}$ to $[c]$ and $[c_{0}]$.

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