Results 41 to 50 of about 7,775,629 (391)
The topology of surface mediatrices
Topology and its Applications, 2007 AbstractGiven a pair of distinct points p and q in a metric space with distance d, the mediatrix is the set of points x such that d(x,p)=d(x,q). In this paper, we examine the topological structure of mediatrices in connected, compact, closed 2-manifolds whose distance function is inherited from a Riemannian metric.
Bernhard, James, Veerman, J. J. P.
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Topological laminations on surfaces [PDF]
Expositiones Mathematicae, 2019 We present and prove a topological characterization of geodesic laminations on hyperbolic surfaces of finite type.
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Surface states of topological insulators [PDF]
Physical Review B, 2012 We develop an effective bulk model with a topological boundary condition to study the surface states of topological insulators. We find that the Dirac point energy, the band curvature and the spin texture of surface states are crystal face-dependent. For a given face on a sphere, the Dirac point energy is determined by the bulk physics that breaks p-h ...
Kane, Charles L +2 more
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The Topology of Surface Singularities [PDF]
, 2020 We consider a reduced complex surface germ (X, p). We do not assume that X is normal at p, and so, the singular locus ( Σ, p) of (X, p) could be one dimensional. This text is devoted to the description of the topology of (X, p). By the conic structure theorem (see Milnor, Singular Points of Complex Hypersurfaces, Annals of Mathematical Studies 61 (1968)
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Circles in the Sky: Finding Topology with the Microwave Background Radiation [PDF]
, 1996 If the universe is finite and smaller than the distance to the surface of last scatter, then the signature of the topology of the universe is writ large on the microwave background sky.
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Toxins, 2017 The Vip3 proteins produced during vegetative growth by strains of the bacterium Bacillus thuringiensis show insecticidal activity against lepidopteran insects with a mechanism of action that may involve pore formation and apoptosis.
Leopoldo Palma +8 more
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Metals, 2020 This contribution reports the effects of an ultrasonic-vibration assisted ball burnishing process on the topological descriptors of nickel-based alloy Udimet®720. This material is of high interest for the transportation industry, and specifically for the
Ramón Jerez-Mesa +3 more
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Topological Derivative for PDEs on Surfaces [PDF]
SIAM Journal on Control and Optimization, 2022 In this paper we study the problem of the optimal distribution of two materials on smooth submanifolds $M$ of dimension $d-1$ in $\mathbf R^d$ without boundary by means of the topological derivative. We consider a class of shape optimisation problems which are constrained by a linear partial differential equation on the surface. We examine the singular
Peter Gangl, Kevin Sturm
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On the topology of untrapped surfaces [PDF]
Classical and Quantum Gravity, 2009 Recently a simple proof of the generalizations of Hawking's black hole topology theorem and its application to topological black holes for higher dimensional ($n\geq 4$) spacetimes was given \cite{rnew}. By applying the associated new line of argument it is proven here that strictly stable untrapped surfaces do possess exactly the same topological ...
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Ultrafilter and Constructible topologies on spaces of valuation domains [PDF]
, 2012 Let $K$ be a field and let $A$ be a subring of $K$. We consider properties and applications of a compact, Hausdorff topology called the "ultrafilter topology" defined on the space Zar$(K|A)$ of all valuation domains having $K$ as quotient field and ...
Carmelo A. Finocchiaro +3 more
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