Results 41 to 50 of about 116,095 (257)

On Metrics for Error Correction in Network Coding

open access: yes, 2009
The problem of error correction in both coherent and noncoherent network coding is considered under an adversarial model. For coherent network coding, where knowledge of the network topology and network code is assumed at the source and destination nodes,
Kschischang, Frank R., Silva, Danilo
core   +3 more sources

Interval Valued Neutrosophic Soft Topological Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
In this paper we introduce the concept of interval valued neutrosophic soft topological space together with interval valued neutrosophic soft finer and interval valued neutrosophic soft coarser topology.
Anjan Mukherjee   +2 more
doaj  

Topological Structures via Bipolar Hypersoft Sets

open access: yesJournal of Mathematics, 2022
In this article, we introduce bipolar hypersoft topological spaces over the collection of bipolar hypersoft sets. It is proven that a bipolar hypersoft topological space gives a parametrized family of hypersoft topological spaces, but the converse does ...
Sagvan Y. Musa, Baravan A. Asaad
doaj   +1 more source

Rapid polynomial approximation in $L_2$-spaces with Freud weights on the real line

open access: yes, 2014
The weights $W_\alpha(x)=\exp{(-|x|^{\alpha})}$ $(\alpha>1)$ form a subclass of Freud weights on the real line. Primarily from a functional analytic angle, we investigate the subspace of $L_2(\mathbb R, W_\alpha^2(x)\,dx)$ consisting of those elements ...
de Jeu, Marcel, Xie, Rui
core   +1 more source

Scott-representability of some spaces of Tall and Miskin

open access: yesApplied General Topology, 2008
In this paper we show that a variation of a technique of Miskin and Tall yields a cocompact completely regular Moore space that is Scott-domain-representable and has a closed Gδ-subspace that is not Scott-domain-representable.
Harold Bennet, David Lutzer
doaj   +1 more source

Electric‐Current‐Assisted Nucleation of Zero‐Field Hopfion Rings

open access: yesAdvanced Materials, EarlyView.
This work reports a novel and efficient nucleation protocol for 3D localized topological magnetic solitons‐hopfion rings in chiral magnets using pulsed electric currents. By using Lorentz transmission electron microscopy and topological analysis, we report characteristic features and extraordinary stability of hopfion rings in zero or inverted external
Xiaowen Chen   +12 more
wiley   +1 more source

Subgroups of paratopological groups and feebly compact groups

open access: yesApplied General Topology, 2014
It is shown that if all countable subgroups of a semitopological group G are precompact, then G is also precompact and that the closure of an arbitrary subgroup of G is again a subgroup.
Manuel Fernández, Mikhail G. Tkachenko
doaj   +1 more source

Subspace spanning graph topological spaces of graphs

open access: yesProyecciones (Antofagasta), 2023
A collection of spanning subgraphs TS, of a graph G is said to be a spanning graph topology if it satisfies the three axioms: Nn, K0 ∈ TS where, n = |V (G)|, the collection is closed under any union and finite intersection. Let (X, T) be a topological space in point set topology and Y ⊆ X then, TY = {U ∩ Y : U ∈ T} is a topological space called a ...
Achu Aniyan, Sudev Naduvath
openaire   +2 more sources

Beyond the Non‐Hermitian Skin Effect: Scaling‐Controlled Topology from Exceptional‐Bound Bands

open access: yesAdvanced Science, EarlyView.
ABSTRACT We establish a novel mechanism for topological transitions in non‐Hermitian systems that are controlled by the system size. Based on a new paradigm known as exceptional‐bound (EB) band engineering, its mechanism hinges on the unique critical scaling behavior near an exceptional point, totally unrelated to the well‐known non‐Hermitian skin ...
Mengjie Yang, Ching Hua Lee
wiley   +1 more source

The topology of Double Field Theory

open access: yesJournal of High Energy Physics, 2018
We describe the doubled space of Double Field Theory as a group manifold G with an arbitrary generalized metric. Local information from the latter is not relevant to our discussion and so G only captures the topology of the doubled space.
Falk Hassler
doaj   +1 more source

Home - About - Disclaimer - Privacy