Results 11 to 20 of about 2,298,010 (344)

Non-Hermitian Boundary Modes and Topology. [PDF]

open access: yesPhysical Review Letters, 2019
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 ...
Dan S. Borgnia   +2 more
semanticscholar   +5 more sources

A metrizable topology on the contracting boundary of a group [PDF]

open access: yesTransactions of the American Mathematical Society, 2017
The 'contracting boundary' of a proper geodesic metric space consists of equivalence classes of geodesic rays that behave like rays in a hyperbolic space.
Christopher H. Cashen, J. M. Mackay
semanticscholar   +7 more sources

Design of multiple materials structure based on an explicit and implicit hybrid topology optimization method [PDF]

open access: yesScientific Reports
In this paper, an explicit and implicit hybrid topology optimization method is proposed for the design of multiple materials structure. The explicit topology optimization employs the moving morphable component (MMC) method to determine where the solid ...
Zhao Li   +4 more
doaj   +2 more sources

The topology of boundaries

open access: bronzeArtificial Intelligence, 1996
AbstractHigh-level representations used in reasoning distinguish a special set of boundary locations, at which function values can change abruptly and across which adjacent regions may not be connected. Standard models of space and time, based on segmenting Rn, do not allow these possibilities because they have the wrong topological structure at ...
Margaret M. Fleck
openalex   +3 more sources

On the topology of the Newton boundary at infinity [PDF]

open access: bronzeJournal of the Mathematical Society of Japan, 2008
We are interested in a global version of Le-Ramanujam μ -constant theorem from the Newton polyhedron point of view. More precisely, we prove a stability theorem which says that the global monodromy fibration of a polynomial function with Newton non-degenerate is uniquely determined by its Newton boundary at infinity.
Tiến-Sơn Phạm
openalex   +4 more sources

Topology of the future chronological boundary: universality for spacelike boundaries [PDF]

open access: greenClassical and Quantum Gravity, 2000
56 pages, AMS-TeX; 1 page of figure captions (TeX); 22 figures, EPS format; to be published in Quantum Class. Grav.; principal reason for replacement is to have the figures included (also, introduction is expanded slightly, and one example is simplified)
Steven G. Harris
openalex   +4 more sources

Boundary topological superconductors [PDF]

open access: yesPhysical Review B, 2021
For strongly anisotropic time-reversal invariant (TRI) insulators in two and three dimensions, the band inversion can occur respectively at all TRI momenta of a high symmetry axis and plane. Although these classes of materials are topologically trivial as the strong and weak $Z_{2}$ indices are all trivial, they can host an even number of unprotected ...
Bo-Xuan Li, Zhongbo Yan
openaire   +3 more sources

Some Weaker Forms of Bipolar Neutrosophic Nano * Open Sets [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
In this paper, the weaker forms of open sets in Bipolar Neutrosophic Nano* (BNN*) topology are studied. This topology is defined on a space of bipolar neutrosophic sets with respect to the lower, upper, boundary approximations and the union and ...
G. Gincy   +2 more
doaj   +1 more source

Bulk-boundary and RPS thermodynamics from topology perspective [PDF]

open access: yesChinese Physics C, High Energy Physics & Nuclear Physics, 2023
In this study, we investigate the bulk-boundary and restricted phase space (RPS) thermodynamics of Rissner-Nordström (R-N) AdS and 6-dimensional charged Gauss-Bonnet AdS black holes.
J. Sadeghi   +3 more
semanticscholar   +1 more source

Boundary-obstructed topological phases [PDF]

open access: yesPhysical Review Research, 2021
30 pages, 21 ...
Eslam Khalaf   +3 more
openaire   +5 more sources

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