Results 41 to 50 of about 565,556 (249)
Hierarchical Optimization Segmentation and Parameter Extraction of Street Trees Based on Topology Checking and Boundary Analysis from LiDAR Point Clouds. [PDF]
Sensors (Basel)Kou Y +7 more
europepmc +2 more sources
A Theoretical Investigation of Flow Topologies in Bubble- and Droplet-Affected Flows
Fluids, 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
Higher-order bulk-boundary correspondence for topological crystalline phases [PDF]
Phys. Rev. X 9, 011012 (2019), 2018 We study the bulk-boundary correspondence for topological crystalline phases, where the crystalline symmetry is an order-two (anti)symmetry, unitary or antiunitary. We obtain a formulation of the bulk-boundary correspondence in terms of a subgroup sequence of the bulk classifying groups, which uniquely determines the topological classification of the ...
arxiv +1 more source
Entanglement entropy of topological orders with boundaries [PDF]
Journal of High Energy Physics, 2018 Abstract In this paper we explore how non trivial boundary conditions could influence the entanglement entropy in a topological order in 2+1 dimensions. Specifically we consider the special class of topological orders describable by the quantum double.
Chen, Chaoyi +3 more
openaire +3 more sources
, 2002 We present a toy model for five-dimensional heterotic M-theory where bulk three-branes, originating in 11 dimensions from M five-branes, are modelled as kink solutions of a bulk scalar field theory.
Antunes, Nuno D. +3 more
core +4 more sources
The AdS/CFT Correspondence Conjecture and Topological Censorship [PDF]
, 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
Jixie qiangdu, 2022 The variable density method has become an effective method to solve the topology optimization problem of continuum structure due to its advantages such as few design variables and high efficiency.
ZHANG GuoFeng +3 more
doaj
Some Problems of Topology Change Description in the Theory of Space-Time [PDF]
, 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
Boundary shape identification method for density based topology optimization
Nihon Kikai Gakkai ronbunshu, 2022 Topology optimization is an advanced design method that is used to generate lightweight and high-performance structures by determining the material distribution.
Yoshinori NISHIO, Yang LIU, Nagato ONO
doaj +1 more source
Nonlinear Dirichlet problem for the nonlocal anisotropic operator $L_K$ [PDF]
, 2018 In this paper we study an equation driven by a nonlocal anisotropic operator with homogeneous Dirichlet boundary conditions. We find at least three non trivial solutions: one positive, one negative and one of unknown sign, using variational methods and ...
Frassu, Silvia
core +2 more sources