Results 1 to 10 of about 70,314 (307)

Pre-Dual of Fofana’s Spaces

open access: yesMathematics, 2019
The purpose of this paper is to characterize the pre-dual of the spaces introduced by I. Fofana on the basis of Wiener amalgam spaces. These spaces have a specific dilation behaviour similar to the spaces L α ( R d ) .
Hans G. Feichtinger, Justin Feuto
doaj   +4 more sources

Dual spaces of local Morrey-type spaces [PDF]

open access: yesCzechoslovak Mathematical Journal, 2011
Let \(\omega \) be a weight function on \((0,\infty )\). The local Morrey-type spaces \(LM_{p,\theta ,\omega }\) with the norm \(\| \omega (r)\| f\| _{L_p(B(0,r))}\| _{L_{\theta }(0,\infty )}\) are considered.
Amiran Gogatishvili   +2 more
exaly   +6 more sources

Dual and generalized dual cones in Banach spaces

open access: yesOptimization Letters
Abstract This paper proposes and analyzes the notion of dual cones associated with the metric projection and generalized projection in Banach spaces. We show that the dual cones, related to the metric projection and generalized metric projection, lose many important properties in transitioning from Hilbert spaces to Banach spaces.
Dezhou Kong, Jinlu Li, Khan Akhtar A
exaly   +4 more sources

Almost and Strongly Almost B(r ̃,s ̃,t ̃,u ̃)- Summable Double Sequences

open access: yesEurasian Journal of Science and Engineering, 2021
In this paper, we define some new almost and strongly almost convergent double sequence spaces B ̃(C_f), B ̃(C_f0), B ̃[C_f] and B ̃[C_f0] derived by the domain of four-dimensional sequential band matrix B(r ̃,s ̃,t ̃,u ̃) in the spaces C_f, C_f0 , [C_f]
Orhan Tuğ
doaj   +1 more source

On locally Hilbert spaces [PDF]

open access: yesOpuscula Mathematica, 2016
This is an investigation of some basic properties of strictly inductive limits of Hilbert spaces, called locally Hilbert spaces, with respect to their topological properties, the geometry of their subspaces, linear functionals and dual spaces.
Aurelian Gheondea
doaj   +1 more source

ON THE BASIC STRUCTURES OF DUAL SPACE [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2020
Topology studies the properties of spaces that are invariant under any con-tinuous deformation. Topology is needed to examine the properties of the space. Funda-mentally, the most basic structure required to do math in the space is topology. There exists little information on the expression of the basis and topology on dual space. The main point of the
Aktas, Busra   +2 more
openaire   +5 more sources

NEW APPROACHES ON DUAL SPACE [PDF]

open access: yesFacta Universitatis, Series: Mathematics and Informatics, 2020
In this paper, we give how to define the basic concepts of differential geometry on Dual space. For this, dual tangent vectors that have p as dual point of application are defined. Then, the dual analytic functions defined by Dimentberg are examined in detail, and by using the derivative of the these functions, dual directional derivatives and dual ...
Durmaz, Olgun   +2 more
openaire   +4 more sources

On the Domain of the Four-Dimensional Sequential Band Matrix in Some Double Sequence Spaces

open access: yesMathematics, 2020
Let E represent any of the spaces M u , C ϑ ( ϑ = { b , b p , r } ) , and L q ( 0
Orhan Tuğ   +2 more
doaj   +1 more source

Dual spaces to Orlicz–Lorentz spaces [PDF]

open access: yesStudia Mathematica, 2014
25 ...
Kamińska, Anna   +2 more
openaire   +2 more sources

The dual of the space of bounded operators on a Banach space

open access: yesConcrete Operators, 2021
Given Banach spaces X and Y, we ask about the dual space of the 𝒧(X, Y). This paper surveys results on tensor products of Banach spaces with the main objective of describing the dual of spaces of bounded operators. In several cases and under a variety of
Botelho Fernanda, Fleming Richard J.
doaj   +1 more source

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