Results 11 to 20 of about 5,300 (153)
Probing Surface-Mediated Electronic Coupling in Flat Hexagonal Phosphorus Nanostructures and Monolayer on Au(111). [PDF]
Hexagonal phosphorus nanostructures and monolayer are grown on Au(111). The progressive formation of unoccupied electronic bands involving substrate mediated coupling between phosphorus atoms are observed and explained by combining scanning tunneling microscopy and ab initio calculations. Abstract Due to its diverse allotropes and intriguing properties,
Karn A +7 more
europepmc +2 more sources
On n-Dimensional Simplices Satisfying Inclusions S ⊂ [0, 1]n ⊂ nS
Let \(n\in{\mathbb N}\), \(Q_n=[0,1]^n.\) For a nondegenerate simplex \(S\subset {\mathbb R}^n\), by \(\sigma S\) we denote the homothetic image of \(S\) with the center of homothety in the center of gravity of \(S\) and ratio of homothety ...
Mikhail V. Nevskii, Alexey Y. Ukhalov
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On a geometric approach to the estimation of interpolation projectors
Suppose $\Omega$ is a closed bounded subset of ${\mathbb R}^n,$ $S$ is an $n$-dimensional non-degenerate simplex, $\xi(\Omega;S):=$ min {$\sigma\geqslant 1: \Omega\subset \sigma S$}.
Mikhail V. Nevskii, Alexey Y. Ukhalov
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On Some Problems for a Simplex and a Ball in Rn
Let \(C\) be a convex body and let \(S\) be a nondegenerate simplex in \({\mathbb R}^n\). Denote by \(\tau S\) the image of \(S\) under homothety with a center of homothety in the center of gravity of \(S\) and the ratio \(\tau\). We mean by \(\xi(C;S)\)
Mikhail V. Nevskii
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Two existing theorems for studying pinched hysteresis loops generated by nonlinear higher-order elements from Chua's table are reformulated, namely the generalized homothety theorem and the associated Loop Location Rule, specifying the coordinates where ...
Zdenek Biolek +3 more
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Gravitational Waves: Just Plane Symmetry [PDF]
We present some remarkable properties of the symmetry group for gravitational plane waves. Our main observation is that metrics with plane wave symmetry satisfy every system of generally covariant vacuum field equations except the Einstein equations. The
A. Petrov +17 more
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Abstract The selection of uncertainty structures is an important aspect of system identification for robust control. The aim of this paper is to provide insight into uncertain multivariable systems for robust control. A unified method for visualizing model sets is developed by generating Bode plots of multivariable uncertain systems, both in magnitude ...
Paul Tacx, Tom Oomen
wiley +1 more source
On Minimal Absorption Index for an n-Dimensional Simplex
Let \(n\in{\mathbb N}\) and let \(Q_n\) be the unit cube \([0,1]^n\). For a nondegenerate simplex \(S\subset{\mathbb R}^n\), by \(\sigma S\) denote the homothetic copy of \(S\) with center of homothety in the center of gravity of \(S\) and ratio of ...
Mikhail V. Nevskii, Alexey Y. Ukhalov
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The Geometry of (Super) Conformal Quantum Mechanics [PDF]
N-particle quantum mechanics described by a sigma model with an N-dimensional target space with torsion is considered. It is shown that an SL(2,R) conformal symmetry exists if and only if the geometry admits a homothetic Killing vector $D^a$ whose ...
Michelson, Jeremy, Strominger, Andrew
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Connaissance et métamorphoses de l’Iliade en Étrurie
The author offers an itinerary through the images of the Trojan Cycle and the Iliad that arrived or were reinterpreted in Etruria between the ancient orientalizing period and the 4th century B.C.From the 7th century on, knowledge of the Greek epic (which
Françoise-Hélène Massa-Pairault
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