Results 21 to 30 of about 347,783 (331)

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

The causal order on the ambient boundary [PDF]

open access: yes, 2016
We analyse the causal structure of the ambient boundary, the conformal infinity of the ambient (Poincar\'e) metric. Using topological tools we show that the only causal relation compatible with the global topology of the boundary spacetime is the ...
Antoniadis, Ignatios   +2 more
core   +2 more sources

Du trimorphe aux frontières quasi topologiques

open access: yesAteliers 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

Some Problems of Topology Change Description in the Theory of Space-Time [PDF]

open access: yes, 1995
The problem of topology change description in gravitation theory is analized in detailes. It is pointed out that in standard four-dimensional theories the topology of space may be considered as a particular case of boundary conditions (or constraints ...
Konstantinov, M. Yu.
core   +2 more sources

An Algorithm to Translate Building Topology in Building Information Modeling into Object-Oriented Physical Modeling-Based Building Energy Modeling

open access: yesEnergies, 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

Boundary-obstructed topological phases [PDF]

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

Generic Stationary Measures and Actions [PDF]

open access: yes, 2015
Let $G$ be a countably infinite group, and let $\mu$ be a generating probability measure on $G$. We study the space of $\mu$-stationary Borel probability measures on a topological $G$ space, and in particular on $Z^G$, where $Z$ is any perfect Polish ...
Bowen, Lewis, Hartman, Yair, Tamuz, Omer
core   +2 more sources

A Theoretical Investigation of Flow Topologies in Bubble- and Droplet-Affected Flows

open access: yesFluids, 2019
A local flow topology analysis was conducted for laminar particle-affected flows. Based on the invariants of the velocity gradient tensor, all possible flow structures can be categorized into two focal and two nodal topologies for incompressible flows ...
Josef Hasslberger   +2 more
doaj   +1 more source

Boundary degeneracy of topological order

open access: yesPhysical Review B, 2015
We introduce the concept of boundary degeneracy of topologically ordered states on a compact orientable spatial manifold with boundaries, and emphasize that the boundary degeneracy provides richer information than the bulk degeneracy. Beyond the bulk-edge correspondence, we find the ground state degeneracy of the fully gapped edge modes depends on ...
Wen, Xiao-Gang, Wang, Juven
openaire   +4 more sources

The AdS/CFT Correspondence Conjecture and Topological Censorship [PDF]

open access: yes, 1999
In gr-qc/9902061 it was shown that (n+1)-dimensional asymptotically anti-de-Sitter spacetimes obeying natural causality conditions exhibit topological censorship.
Aharony   +22 more
core   +4 more sources

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