Results 71 to 80 of about 31,522 (314)
Advanced Functional Materials, EarlyView.Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin +16 more
wiley +1 more source
Journal of Hebei University of Science and Technology, 2015 Based on the topological sum, for X being a discrete topological space, we prove that the product topology generated by some topological spaces is equal to the topology of pointwise convergence related to X.
Chong SHEN, Wei YAO
doaj +1 more source
Advanced Functional Materials, EarlyView.Schematic illustration of ferroelectric‐intercalation‐driven transitions in magnetic configurations and magnonic topological phases, together with the symmetry relations of magnonic Berry curvature. ABSTRACT Magnons in collinear magnets with vanishing net magnetization offer unique advantages for spin transport, including ultrafast dynamics and ...
Yingxi Bai +8 more
wiley +1 more source
The Topology of Spaces of Polygons [PDF]
, 2011 We study the topology of spaces of polygons in Euclidean space, viewed up to translations. The main results concern the structure of the homology groups and of the cohomology rings of the spaces.
FROMM, VIKTOR
core
Dynamic Topological Logic of Metric Spaces [PDF]
, 2012 Dynamic Topological Logic (DT L) is a modal framework for reasoning about dynamical systems, that is, pairs hX; fi where X is a topological space and f : X ! X a continuous function. In this paper we consider the case where X is a metric space.
Fernández Duque, David
core +1 more source
Topology and Sobolev Spaces [PDF]
Journal of Functional Analysis, 2000 Let two compact connected oriented smooth Riemannian manifolds \(M\) and \(N\) (with or without boundary) be given. It is supposed that \(\dim M\geq 2\); the example \(N=S^1\) is of importance. Let \(W^{1,p}(M,N)\) be the Sobolev space of functions \(u\in W^{1,p} (M,\mathbb{R}^k)\) with \(u(x)\in N\) a.e.
Brezis, Haim, Li, Yanyan
openaire +2 more sources
Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor
Advanced Functional Materials, EarlyView.Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben +6 more
wiley +1 more source
Homeomorphic spaces in the plane [PDF]
, 1971 The idea of topological equivalence, or homeomorphism, is one of the most basic in any study of topology. In this paper, pairs of spaces imbedded in the plane are compared to determine whether or not they are homeomorphic. The decisions are based on four
Yandell, Anne Lewis +1 more
core
Local homogeneity in fuzzy topological spaces
International Journal of Mathematics and Mathematical Sciences, 2006 Three types of local homogeneity in L-topological spaces are introduced and studied, and each is characterized and proved to be a good extension of local homogeneity in ordinary topological spaces. Many implications concerning them are introduced.
Samer Al Ghour
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FIVE SEPARATION AXIOMS IN QUAD SOFT NON-LINEAR STRUCTURE [PDF]
Acta Scientifica Malaysia, 2018 In 1999, Russian mathematician Molodtsov planted the novel notion of a soft set which can be supposed as a new mathematical approach for imprecision. Topological structures of soft set have been studied by some mathematicians in current years.
Fahad Jamal +3 more
doaj +1 more source