Results 31 to 40 of about 565,556 (249)
A precise TIN clipping algorithm for the digital mining design of the opencast coal mine
PLoS ONE, 2023 The triangulated irregular network (TIN) clipping algorithm is one of the vital algorithms for the digital mining design of opencast coal mines based on the geological digital elevation model (DEM) described by TIN.
Jingchang Zhao +3 more
doaj +2 more sources
Universal platform of point-gap topological phases from topological materials [PDF]
Phys. Rev. Lett. 131, 256602 (2023), 2023 Whereas point-gap topological phases are responsible for exceptional phenomena intrinsic to non-Hermitian systems, their realization in quantum materials is still elusive. Here we propose a simple and universal platform of point-gap topological phases constructed from Hermitian topological insulators and superconductors.
arxiv +1 more source
La nuit pensée et vécue comme une frontière quasi topologique
Ateliers 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
Mathematics, 2023 We propose here a general framework covering a wide range of fractional operators for vector-valued functions. We indicate to what extent the case in which assumptions are expressed in terms of weak topology is symmetric to the case of norm topology ...
Mieczysław Cichoń +2 more
doaj +1 more source
Higher-order topological band structures [PDF]
physica status solidi (b), 2020, 2020 The interplay of topology and symmetry in a material's band structure may result in various patterns of topological states of different dimensionality on the boundary of a crystal. The protection of these "higher-order" boundary states comes from topology, with constraints imposed by symmetry.
arxiv +1 more source
Time-reversal invariant finite-size topology [PDF]
Phys. Rev. B 108/12 2023, 2023 We report finite-size topology in the quintessential time-reversal (TR) invariant systems, the quantum spin Hall insulator (QSHI) and the three-dimensional, strong topological insulator (STI): previously-identified helical or Dirac cone boundary states of these phases hybridize in wire or slab geometries with one open boundary condition for finite ...
arxiv +1 more source
Du trimorphe aux frontières quasi topologiques
Ateliers d'Anthropologie, 2012 Topology is used in linguistics for semantic, lexical and grammatical descriptions. However, classical topology, with its notion of the limit, is insufficient. Therefore, to describe numerous semantic oppositions (such as “again” / “not again”, “already”
Jean-Pierre Desclés
doaj +1 more source
Non-Hermitian Boundary Modes and Topology [PDF]
Physical 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 +3 more sources
Energies, 2016 This paper presents an algorithm to translate building topology in an object-oriented architectural building model (Building Information Modeling, BIM) into an object-oriented physical-based energy performance simulation by using an object-oriented ...
WoonSeong Jeong, JeongWook Son
doaj +1 more source
A Closed Contour of Integration in Regge Calculus [PDF]
, 1997 The analytic structure of the Regge action on a cone in $d$ dimensions over a boundary of arbitrary topology is determined in simplicial minisuperspace.
C. P. Rourke +25 more
core +3 more sources