Results 11 to 20 of about 55,932 (263)

Stability of bicalicene isomers: A topological study [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
Bicalicene is the conjugated hydrocarbon obtained by joining two calicene fragments. This can be done in two different ways, thus resulting in two bicalicene isomers (tentatively referred to as cis and trans).
Gutman Ivan
doaj   +1 more source

Stability of topological black holes [PDF]

open access: yesPhysical Review D, 2007
We explore the classical stability of topological black holes in d-dimensional anti-de Sitter spacetime, where the horizon is an Einstein manifold of negative curvature. According to the gauge invariant formalism of Ishibashi and Kodama, gravitational perturbations are classified as being of scalar, vector, or tensor type, depending on their ...
Birmingham, Danny, Mokhtari, Susan
openaire   +2 more sources

Stability of topological wall defects on spheres with n-atic order

open access: yesPhysical Review Research, 2020
Topological point defects on orientationally ordered spheres and on deformable fluid vesicles have been investigated, partly motivated by their potential applications in creating superatoms with directional bonds through functionalization of the “bald ...
C. Saichand   +3 more
doaj   +1 more source

Driven-dissipative topological phases in parametric resonator arrays [PDF]

open access: yesQuantum, 2023
We study the phenomena of topological amplification in arrays of parametric oscillators. We find two phases of topological amplification, both with directional transport and exponential gain with the number of sites, and one of them featuring squeezing ...
Álvaro Gómez-León   +3 more
doaj   +1 more source

On the Stability of Barrelled Topologies II [PDF]

open access: yesGlasgow Mathematical Journal, 1980
If E is a Hausdorff barrelled space, which does not already have its finest locally convex topology, then the continuous dual E′ may be enlarged within the algebraic dual E*. Robertson and Yeomans [10] have recently investigated whether E can retain the barrelled property under such enlargements.
Tweddle, I., Yeomans, F. E.
openaire   +1 more source

Topological Descriptors on Some Families of Graphs

open access: yesJournal of Chemistry, 2021
In view of the successful applications of graph theory, relationships between the biological activity and chemical structure have been developed. One of the popular topics in graph theory is problems relating to topological indices.
Iftikhar Ahmad   +3 more
doaj   +1 more source

TOPOLOGICAL STRUCTURAL STABILITY ON PROJECTED SPACES

open access: yesSelecciones Matemáticas, 2016
In this work we study the topological structural stability for a family of nonlinear semigroups Th(·) on Banach spaces Xh which dependent on a parameter h.
Rodiak Figueroa   +3 more
doaj   +1 more source

On the stability of barrelled topologies, I [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1979
This note investigates, for locally convex topological vector spaces, the question of how far the property of being barrelled is stable under small increase in the size of the dual space. If the dual F of a barrelled space E is enlarged by a finite dimensional vector space M, then E remains barrelled under the new Mackey topology τ(E, F+M).
Robertson, W. J., Yeomans, F. E.
openaire   +1 more source

Standard model as the topological material

open access: yesNew Journal of Physics, 2017
The study of the Weyl and Dirac topological materials (topological semimetals, insulators, superfluids and superconductors) opens the route for the investigation of the topological quantum vacua of relativistic fields. The symmetric phase of the standard
G E Volovik, M A Zubkov
doaj   +1 more source

Topologically protected vortex knots and links

open access: yesCommunications Physics, 2022
Ordered materials, such as liquid crystals and Bose-Einstein condensates, support topological vortices, which are analogous to vortices in water, but have qualitatively different properties.
Toni Annala   +2 more
doaj   +1 more source

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