Results 111 to 120 of about 1,221,731 (238)
Topology Choice and Optimization of a Bearingless Flux-Switching Motor with a Combined Winding Set
Machines, 2018 The purpose of this paper is to choose a new topology for bearingless flux-switching slice motors, regarding the number of stator and rotor poles, with a combined winding set.
Vedran Jurdana +2 more
doaj +1 more source
Embedding topological semigroups into the hyperspaces over topological groups [PDF]
Acta Universitatis Carolinae. Math. et Phys. 48:2 (2007), 3-18, 2010 We study algebraic and topological properties of subsemigroups of the hyperspace exp(G) of non-empty compact subsets of a topological group G endowed with the Vietoris topology and the natural semigroup operation. On this base we prove that a compact Clifford topological semigroup S is topologically isomorphic to a subsemigroup of exp(G) for a suitable
arxiv
Topological Insulator Laser Using Valley-Hall Photonic Crystals [PDF]
arXiv, 2020 Topological photonics has recently been proved a robust framework for manipulating light. Active topological photonic systems, in particular, enable richer fundamental physics by employing nonlinear light-matter interactions, thereby opening a new landscape for applications such as topological lasing.
arxiv
The Stiefel--Whitney theory of topological insulators [PDF]
arXiv, 2016 We study the topological band theory of time reversal invariant topological insulators and interpret the topological $\mathbb{Z}_2$ invariant as an obstruction in terms of Stiefel--Whitney classes. The band structure of a topological insulator defines a Pfaffian line bundle over the momentum space, whose structure group can be reduced to $\mathbb{Z}_2$.
arxiv
$\mathfrak G$-bases in free (locally convex) topological vector spaces [PDF]
arXiv, 2016 We characterize topological (and uniform) spaces whose free (locally convex) topological vector spaces have a local $\mathfrak G$-base. A topological space $X$ has a local $\mathfrak G$-base if every point $x$ of $X$ has a neighborhood base $(U_\alpha)_{\alpha\in\omega^\omega}$ such that $U_\beta\subset U_\alpha$ for all $\alpha\le\beta$ in $\omega ...
arxiv
Jixie chuandong, 2014 The design of the toplogy optimization for full-compliant micro-platform is carried out.The topology optimization results of three-dimensional full-compliant micro-platform in different volunm ratio are researched.Base on the three-dimensional full ...
朱大昌, 冯文结, 刘运鸿
doaj
Analyzing Some Structural Properties of Topological B-Algebras
International Journal of Mathematics and Mathematical Sciences, 2019 In this study, we investigate the topology on B-algebras: an algebraic system of propositional logic. We define here the notion of topological B-algebras (briefly, TB-algebras) and some properties are investigated. A characterization of TB-algebras based
Narciso C. Gonzaga
doaj +1 more source
Constructing and Deconstructing Group Actions [PDF]
arXiv, 2002 We survey some results concerning finite group actions on products of spheres.
arxiv
Green virtual topology design algorithm based on constraint-based routing
Tongxin xuebao, 2014 To reduce the energy consumption of Internet core network, a formulation model for green virtual topology design (GVTD) problem was developed, which employs the following measures: traffic aggregation, network resources allocation on demand, virtual ...
Yuan-sheng WU +4 more
doaj +2 more sources
Order isomorphisms between bases of topologies
Extracta Mathematicae, 2022 In this paper we will study the representations of isomorphisms between bases of topological spaces. It turns out that the perfect setting for this study is that of regular open subsets of complete metric spaces, but we have been able to show some results about arbitrary bases in complete metric spaces and also about regular open subsets in Hausdorff ...
openaire +4 more sources