Results 11 to 20 of about 383 (218)

A new strategy to microscopic modeling of topological entanglement in polymers based on field theory

open access: yesNuclear Physics B, 2019
In this work a new strategy is proposed in order to build analytic and microscopic models of fluctuating polymer rings subjected to topological constraints.
Franco Ferrari
doaj   +1 more source

All-dielectric metaoptics for the compact generation of double-ring perfect vector beams

open access: yesNanophotonics, 2023
Perfect vortices, whose ring profile is independent of the topological charge, play a key role in telecommunications and particle micro-manipulation. In this work, we report the compact generation of a new kind of double-ring perfect vortices, called ...
Vogliardi Andrea   +4 more
doaj   +1 more source

Continuous functions with compact support

open access: yesApplied General Topology, 2004
The main aim of this paper is to investigate a subring of the ring of continuous functions on a topological space X with values in a linearly ordered field F equipped with its order topology, namely the ring of continuous functions with compact support ...
Sudip Kumar Acharyya   +2 more
doaj   +1 more source

Pareto vectors of continuous linear operators

open access: yesJournal of Inequalities and Applications, 2023
The intersection of all zero-neighborhoods in a topological module over a topological ring is a bounded and closed submodule whose inherited topology is the trivial topology.
Francisco Javier García-Pacheco
doaj   +1 more source

Topological Ordered Rings and Measures

open access: yesResults in Mathematics, 2023
AbstractGiven a ring endowed with a ring order, we provide sufficient conditions for the order topology induced by the ring order to become a ring topology (analogous results for module orders are consequently derived). Finally, the notions of Radon and regular measures are transported to the scope of module-valued measures through module orders ...
Francisco Javier García-Pacheco   +2 more
openaire   +3 more sources

Tailoring the Topological Charge of a Superposition of Identical Parallel Laguerre–Gaussian Beams

open access: yesMicromachines, 2022
In optical computing machines, data can be transmitted by optical vortices, and the information can be encoded by their topological charges. Thus, some optical mechanisms are needed for performing simple arithmetic operations with the topological charges.
Victor V. Kotlyar   +3 more
doaj   +1 more source

Extending Ring Topologies

open access: yesJournal of Algebra, 2000
The authors study the question of strengthening totally bounded (= precompact and Hausdorff) ring topologies on rings. The main tool is the concept of the Bohr compactification of a topological ring. It is established for a given discrete ring \(R\) an antiisomorphism between the lattice of precompact topologies on \(R\) and the lattice of closed ...
Comfort, W.W   +2 more
openaire   +1 more source

Radicals in the class of compact right topological rings

open access: yesApplied General Topology, 2014
We construct in this article three radicals in the class of compact right topological rings. We prove also that a simple left Noetherian compact right topological ring is finite.
Mihail Ursul, Adela Tripe
doaj   +1 more source

The Golomb Topology of Polynomial Rings [PDF]

open access: yesQuaestiones Mathematicae, 2020
We study properties of the Golomb topology on polynomial rings over fields, in particular trying to determine conditions under which two such spaces are not homeomorphic. We show that if $K$ is an algebraic extension of a finite field and $K'$ is a field of the same characteristic, then the Golomb spaces of $K[X]$ and $K'[X]$ are homeomorphic if and ...
openaire   +4 more sources

Ring-originated anisotropy of local structural ordering in amorphous and crystalline silicon dioxide

open access: yesCommunications Materials, 2023
Rings comprising chemically bonded atoms are essential topological motifs for the structural ordering of network-forming materials. Quantification of such larger motifs beyond short-range pair correlation is essential for understanding the linkages ...
Motoki Shiga   +3 more
doaj   +1 more source

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