Results 81 to 90 of about 5,719,386 (368)
Policy mobilities as comparison: urbanization processes, repeated instances, topologies
Revista de Administração Pública, 2018 Following on from calls to reformat comparative urban methods to support global urban studies, this paper draws inspiration from policy mobilities to explore how the genetic interconnectedness of urban processes and outcomes can be mobilised ...
Jennifer Robinson
doaj +2 more sources
Weak topologies for unbounded nets in CAT($0$) spaces [PDF]
arXiv, 2022 Weak topologies that yield weak convergence for bounded sequences and nets in CAT($0$) spaces have been studied in the past. We are here concerned with weak topologies that yield weak convergence of unbounded sequences and nets. We analyze two such topologies that generalize the weak topology on Hilbert spaces and that agree with the strong topology on
arxiv
A looping-delooping adjunction for topological spaces
, 2016 Every principal G-bundle is classified up to equivalence by a homotopy class of maps into the classifying space of G. On the other hand, for every nice topological space Milnor constructed a strict model of loop space, that is a group.
Rovelli, Martina
core +1 more source
Advanced Engineering Materials, EarlyView.Mechanical metamaterials capable of compressive stiffness tunability, shape morphing, and post‐fabrication modularity. Herein, the 3D unit cell design is based on an assembly of bistable von Mises trusses that exhibit a switch in compressive stiffness and resting height from one stable state to the other.
Yannis Liétard +2 more
wiley +1 more source
More on Fuzzy Topological Spaces on Fuzzy Space [PDF]
arXiv, 2021 The fuzzy topological space was introduced by Dip in 1999 depending on the notion of fuzzy spaces. Dip's approach helps to rectify the deviation in some definitions of fuzzy subsets in fuzzy topological spaces. In this paper, further definitions, and theorems on fuzzy topological space fill the lack in Dip's article.
arxiv
Advanced Engineering Materials, EarlyView.Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley +1 more source
Green Multicomponent Alloys with Excellent Multifunctional and Mechanical Properties
Advanced Engineering Materials, EarlyView.A sustainable strategy for developing multifunctional green multicomponent alloys (MCAs) using cheap scrap materials is demonstrated. The developed green MCAs with disordered–ordered structures enable a joint regulation of dislocation behavior, scattering of conduction electrons, and motion of magnetic domain walls, leading to high strength and ...
Ronggen Gong +7 more
wiley +1 more source
Unified characterization for higher-order topological phase transitions
Physical Review Research, 2023 Higher-order topological phase transitions (HOTPTs) are associated with closing either the bulk energy gap (type-I) or boundary energy gap (type-II) without changing symmetry, and conventionally, both transitions are captured in real space and ...
Wei Jia +4 more
doaj +1 more source
The topological resolution of a finite closure space [PDF]
arXiv, 2021 For every finite closure space $X$ one can define a finite topological space $\operatorname{Top} X$ together with a natural projection $\operatorname{Top} X\longrightarrow X$. This could allow to apply the techniques of topological combinatorics to the study of finite closure spaces.
arxiv
Momentum space metric, non-local operator, and topological insulators
, 2010 Momentum space of a gapped quantum system is a metric space: it admits a notion of distance reflecting properties of its quantum ground state. By using this quantum metric, we investigate geometric properties of momentum space.
A. Kitaev +3 more
core +1 more source