Results 11 to 20 of about 28,019 (266)

Topologically Semiperfect Topological Rings

open access: yesAlgebras and Representation Theory, 2023
AbstractWe define topologically semiperfect (complete, separated, right linear) topological rings and characterize them by equivalent conditions. We show that the endomorphism ring of a module, endowed with the finite topology, is topologically semiperfect if and only if the module is decomposable as an (infinite) direct sum of modules with local ...
Leonid Positselski, Jan Šťovíček
openaire   +3 more sources

Topological heterotic rings [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2006
26 pages, harvmac ...
Adams, Allan   +2 more
openaire   +3 more sources

Topologically semisimple and topologically perfect topological rings

open access: yesPublicacions Matemàtiques, 2022
LaTeX 2e with tikz-cd, 69 pages; v.3: new Section 13 inserted, final Section 14 (former 13) rewritten with much more complete picture obtained using new results of arXiv:1911.11720, Lemma 7.2 deleted as no longer relevant, Examples 3.7(2) and 9.4 inserted; v.4: Remarks 3.11 and 7.2 inserted; v.5: misprints corrected, references updated, a reference to ...
Leonid Positselski, Jan Šťovíček
openaire   +5 more sources

Hourglass nodal ring phonons in two-dimensional LiHS

open access: yesResults in Physics, 2023
Exploration of topological phonons in two-dimensional (2D) has long been regarded as one of the central topics in topological physics. Due to their distinct band dispersion, hourglass nodal rings have garnered considerable attention, but their existence ...
Yang Li   +3 more
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

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

Charge ambiguity and splitting of monopoles

open access: yesPhysical Review Research, 2022
This paper focuses on topological defects, appearing in mean-field-theory treatments of physical systems such as ultracold atomic gases and gauge field theories.
Toni Annala, Mikko Möttönen
doaj   +1 more source

On M∗-Irresolute Topological Rings

open access: yesInternational Journal of Analysis and Applications, 2023
The main aim of this paper is to introduce and study the new notions namely M∗-irresolute topological rings and M∗-irresolute topological R-modules by virtue of M∗-open sets.
Shallu Sharma   +3 more
doaj   +1 more source

On a problem of Bertram Yood

open access: yesTopological Algebra and its Applications, 2014
In 1964, Bertram Yood posed the following problem: whether the intersection of all closed maximal regular left ideals of a topological ring coincides with the intersection of all closed maximal regular right ideals of this ring.
Abel Mart, Abel Mati
doaj   +1 more source

Topological holographic quench dynamics in a synthetic frequency dimension

open access: yesLight: Science & Applications, 2021
Topological holographic quench dynamics in a synthetic frequency dimension studied in modulated ring system shows the universal bulk-surface duality with complete topological information being encoded in the single time variable.
Danying Yu   +4 more
doaj   +1 more source

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