Results 1 to 10 of about 77,028 (220)

Decomposition, Mapping, and Sum Theorems of ω-Paracompact Topological Spaces

open access: yesAxioms, 2021
As a weaker form of ω-paracompactness, the notion of σ-ω-paracompactness is introduced. Furthermore, as a weaker form of σ-ω-paracompactness, the notion of feebly ω-paracompactness is introduced.
Samer Al Ghour
doaj   +1 more source

On ω*-open sets and decomposition of continuity

open access: yesTopological Algebra and its Applications, 2022
In this paper our main interest is to introduce a new topology on an ideal topological space.We have studied some properties of this newly defined topology.
Roy Bishwambhar, Sen Ritu
doaj   +1 more source

Regularizing effect in singular semilinear problems

open access: yesMathematical Modelling and Analysis, 2023
We analyze how different relations in the lower order terms lead to the same regularizing effect on singular problems whose model is in Ω, u = 0 on ∂Ω, where Ω is a bounded open set of is a nonnegative function in L1(Ω) and g(x,s) is a Carathéodory ...
José Carmona   +3 more
doaj   +1 more source

Capacitary characterization of variable exponent Sobolev trace spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
Let Ω ⊂ ℝn be an open set. We give a new characterization of zero trace functions f∈𝒞(Ω¯)∩W01,p(.)(Ω)f \in \mathcal{C}\left( {\bar \Omega } \right) \cap W_0^{1,p\left( . \right)}\left( \Omega \right).
Berghout Mohamed
doaj   +1 more source

Between Soft θ-Openness and Soft ω0-Openness

open access: yesAxioms, 2023
In this paper, we define and investigate soft ωθ-open sets as a novel type of soft set. We characterize them and demonstrate that they form a soft topology that lies strictly between the soft topologies of soft θ-open sets and soft ω0-open sets. Moreover,
Samer Al Ghour
doaj   +1 more source

Baire-Type Properties in Metrizable c0(Ω, X)

open access: yesAxioms, 2021
Ferrando and Lüdkovsky proved that for a non-empty set Ω and a normed space X, the normed space c0(Ω,X) is barrelled, ultrabornological, or unordered Baire-like if and only if X is, respectively, barrelled, ultrabornological, or unordered Baire-like ...
Salvador López-Alfonso   +2 more
doaj   +1 more source

Between Open Sets and Semi-Open Sets

open access: yesUniversitas Scientiarum, 2018
We introduce and investigate ωs-open sets as a new class of sets which lies strictly between open sets and semi-open sets. Then we use ωs-open sets to introduce ωs -continuous functions as a new class of functions between continuous functions and semi ...
Samer Al Ghour, Kafa Mansur
doaj   +1 more source

Fuzzy optimization for portfolio selection based on Embedding Theorem in Fuzzy Normed Linear Spaces

open access: yesOrganizacija, 2014
Background: This paper generalizes the results of Embedding problem of Fuzzy Number Space and its extension into a Fuzzy Banach Space C(Ω) × C(Ω), where C(Ω) is the set of all real-valued continuous functions on an open set Ω.
Solatikia Farnaz   +2 more
doaj   +1 more source

Wave Front Sets with respect to the Iterates of an Operator with Constant Coefficients

open access: yesAbstract and Applied Analysis, 2014
We introduce the wave front set WF*P(u) with respect to the iterates of a hypoelliptic linear partial differential operator with constant coefficients of a classical distribution u∈𝒟′(Ω) in an open set Ω in the setting of ultradifferentiable classes of ...
C. Boiti, D. Jornet, J. Juan-Huguet
doaj   +1 more source

Certain invariant subspaces for operators with rich eigenvalues

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
For a connected open subset Ω of the plane and n a positive integer, let Bn(Ω) be the space introduced by Cowen and Douglas. In this article we study the spectrum of restrictions of T in order to obtain more information about the invariant subspaces of T.
Karim Seddighi
doaj   +1 more source

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