Results 71 to 80 of about 39,814 (169)

An Inverse Problem for Quantum Trees with Delta-Prime Vertex Conditions

Vibration, 2020
In this paper, we consider a non-standard dynamical inverse problem for the wave equation on a metric tree graph. We assume that the so-called delta-prime matching conditions are satisfied at the internal vertices of the graph.
Sergei Avdonin, Julian Edward
doaj   +1 more source

Topology of critical points in boundary matrix duals

Journal of High Energy Physics
Computation of topological charges of the Schwarzschild and charged black holes in AdS in canonical and grand canonical ensembles allows for a classification of the phase transition points via the Bragg-Williams off-shell free energy.
Pavan Kumar Yerra, Chandrasekhar Bhamidipati, Sudipta Mukherji   +2 more
doaj   +1 more source

State-of-the-Art Overview of Smooth-Edged Material Distribution for Optimizing Topology (SEMDOT) Algorithm

Computation
Topology optimization is a powerful and efficient design tool, but the structures obtained by element-based topology optimization methods are often limited by fuzzy or jagged boundaries.
Minyan Liu, Wanghua Hu, Xuhui Gong, Hao Zhou, Baolin Zhao   +4 more
doaj   +1 more source

Topology Optimization With Selective Problem Setups

IEEE Access, 2019
Topology optimization has demonstrated its power in structural design under a variety of physical disciplines. Generally, a topology optimization problem is formulated with clearly-defined problem setup.
Junyu Fu, Jiaqi Huang, Jikai Liu
doaj   +1 more source

Topological phase transitions of generalized Brillouin zone

Communications Physics
It has been known that the bulk-boundary correspondence (BBC) of the non-Hermitian skin effect is characterized by the topology of the complex eigenvalue spectra, while the topology of the wave function gives rise to Hermitian BBC with conventional ...
Sonu Verma, Moon Jip Park
doaj   +1 more source

Topology optimization method for unsteady state incompressible viscous flow based on a level set immersed boundary method

Nihon Kikai Gakkai ronbunshu, 2019
This paper proposes a novel topology optimization method for unsteady state incompressible Navier-Stokes flow. Many methods of topology optimization for steady state flow have been proposed, whereas most fluid flow problems should be considered as ...
Atsushi KOGUCHI, Kentaro YAJI, Takayuki YAMADA, Kazuhiro IZUI, Shinji NISHIWAKI   +4 more
doaj   +1 more source

Observation of momentum-gap topology of light at temporal interfaces in a time-synthetic lattice

Nature Communications
Topological phases have prevailed across diverse disciplines, spanning electronics, photonics, and acoustics. Hitherto, the understanding of these phases has centred on energy (frequency) bandstructures, showcasing topological boundary states at spatial ...
Yudong Ren, Kangpeng Ye, Qiaolu Chen, Fujia Chen, Li Zhang, Yuang Pan, Wenhao Li, Xinrui Li, Lu Zhang, Hongsheng Chen, Yihao Yang   +10 more
doaj   +1 more source

Boundary and Exterior of a Multiset Topology

Journal of New Theory, 2015
arXiv admin note: substantial text overlap with arXiv:1403 ...
Das, Debaroti, Mahanta, Juthika
openaire   +4 more sources

Gapped Domain Walls, Gapped Boundaries, and Topological Degeneracy

Physical Review Letters, 2015
5+9 pages, 3 figures, updated references, fixed typos and refinements, added proof for equivalence to Lagrangian subgroups in Abelian ...
Lan, Tian, Wen, Xiao-Gang, Wang, Juven
openaire   +5 more sources

Non-Hermitian skin effect without point-gap topology in 2D quasicrystals

Communications Physics
The non-Hermitian skin effect refers to the accumulation of an extensive number of eigenstates at the boundaries of particular dissipative systems. This phenomenon has sparked widespread interest across various fields of physics. It has been dramatically
Xiaoming Cai
doaj   +1 more source