Results 21 to 30 of about 1,352,612 (256)

Grain-boundary topological phase transitions [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance We reveal the existence of a topological phase transition (Kosterlitz–Thouless type) in grain boundaries (GBs)—important internal surfaces in crystalline materials. GB dynamics are controlled by the formation/migration of line defects (disconnections) with dislocation and step character.
Kongtao Chen   +2 more
openaire   +4 more sources

Heptagonal Neutrosophic Topology [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
This article aims at developing the concept of heptagonal neutrosophic topology using heptagonal neutrosophic numbers. The heptagonal neutrosophic union,intersection and complement defined to compare the HNN.
E. Kungumaraj   +2 more
doaj   +1 more source

Triangular Neutrosophic Topology [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
In this current article, the primary focus is to develop the concept of neutrosophic topology as triangular neutrosophic topology. We extend the neutrosophic set operations, we newly introduce the defuzzification, examples, and basics to clear the ...
Ali Hamza   +2 more
doaj   +1 more source

Proportional Topology Optimization under ‎Reliability-based Constraints [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
Topology optimization is a methodology widely used in the design phase that has gained space in engineering. On the other hand, uncertainty is present in material properties, loads, and boundary conditions in practically any design.
Rodrigo Amaral   +2 more
doaj   +1 more source

Induced Topological Phases at the Boundary of 3D Topological Superconductors [PDF]

open access: yesPhysical Review Letters, 2015
We present tight-binding models of 3D topological superconductors in class DIII that support a variety of winding numbers. We show that gapless Majorana surface states emerge at their boundary in agreement with the bulk-boundary correspondence.
Finch, P   +3 more
openaire   +4 more sources

Non-Hermitian Boundary Modes and Topology [PDF]

open access: yesPhysical Review Letters, 2020
We consider conditions for the existence of boundary modes in non-Hermitian systems with edges of arbitrary codimension. Through a universal formulation of formation criteria for boundary modes in terms of local Green's functions, we outline a generic perspective on the appearance of such modes and generate corresponding dispersion relations.
Borgnia, Dan S.   +2 more
openaire   +2 more sources

Liouvillian skin effect in an exactly solvable model

open access: yesPhysical Review Research, 2022
The interplay between dissipation, topology, and sensitivity to boundary conditions has recently attracted tremendous amounts of attention at the level of effective non-Hermitian descriptions.
Fan Yang   +2 more
doaj   +1 more source

Boundary Learning by Optimization with Topological Constraints [PDF]

open access: yes2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2010
Recent studies have shown that machine learning can improve the accuracy of detecting object boundaries in images. In the standard approach, a boundary detector is trained by minimizing its pixel-level disagreement with human boundary tracings. This naive metric is problematic because it is overly sensitive to boundary locations. This problem is solved
Viren Jain   +16 more
openaire   +4 more sources

La nuit pensée et vécue comme une frontière quasi topologique

open access: yesAteliers d'Anthropologie, 2020
The notions “night”, “day”, “sunset”, “sunrise”, “dawn” and “dusk” have meanings that are not independent, since they are part of frameworks structured by a quasi-topology, which is an extension of the general topology.
Jean-Pierre Desclés
doaj   +1 more source

Equivalent topologies on the contracting boundary

open access: yesGlasnik matematički, 2023
The contracting boundary of a proper geodesic metric space generalizes the Gromov boundary of a hyperbolic space. It consists of contracting geodesics up to bounded Hausdorff distances. Another generalization of the Gromov boundary is the \(\kappa\)–Morse boundary with a sublinear function \(\kappa\).
openaire   +3 more sources

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