Results 41 to 50 of about 27,850 (167)

Supersymmetric hyperbolic Calogero-Sutherland models by gauging

open access: yesNuclear Physics B, 2019
Novel N=2 and N=4 supersymmetric extensions of the Calogero-Sutherland hyperbolic systems are obtained by gauging the U(n) isometry of matrix superfield models. The bosonic core of the N=2 models is the standard An−1 Calogero-Sutherland hyperbolic system,
Sergey Fedoruk   +2 more
doaj   +1 more source

Observation of novel topological states in hyperbolic lattices

open access: yesNature Communications, 2022
Recent evidence of hyperbolic lattice calls for whether topological states can exist in such non-Euclidean system. Here, the authors evidence firstorder Chern edge states with a nontrivial real-space Chern number and fractal-like midgap higher-order zero
Weixuan Zhang   +4 more
doaj   +1 more source

Robust adaptive filtering algorithms based on (inverse)hyperbolic sine function.

open access: yesPLoS ONE, 2021
Recently, adaptive filtering algorithms were designed using hyperbolic functions, such as hyperbolic cosine and tangent function. However, most of those algorithms have few parameters that need to be set, and the adaptive estimation accuracy and ...
Sihai Guan   +3 more
doaj   +1 more source

The characteristic problem for the system of the general hyperbolic differential equations of the third order with nonmultiple characteristics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
We consider the well-posed characteristic problem for the system of the general hyperbolic differential equations of the third order with nonmultiple characteristics. The solution of this problem is constructed in an explicit form.
Aleksandr Anatol'evich Andreev   +1 more
doaj   +1 more source

Infrared metamaterial by RF magnetron sputtered ZnO/Al:ZnO multilayers

open access: yesAIP Advances, 2018
Hyperbolic metamaterials create artificial anisotropy using metallic wires suspended in dielectric media or alternating layers of a metal and dielectric (Type I or Type II).
Kevin C. Santiago   +4 more
doaj   +1 more source

Transition from hyperbolicity to ellipticity for a p-system with viscosity

open access: yesElectronic Journal of Differential Equations, 2019
In this article we consider a viscous regularization of a p-system with a Van der Waals pressure law, which presents both hyperbolic and elliptic zones.
Marta Strani
doaj  

On Weakly Hyperbolic Iterated Function Systems

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2016
Updated version.
Arbieto, Alexander   +2 more
openaire   +3 more sources

STRONGLY HYPERBOLIC SYSTEMS IN GENERAL RELATIVITY [PDF]

open access: yesJournal of Hyperbolic Differential Equations, 2004
We discuss several topics related to the notion of strong hyperbolicity which are of interest in general relativity. After introducing the concept and showing its relevance we provide some covariant definitions of strong hyperbolicity. We then prove that if a system is strongly hyperbolic with respect to a given hypersurface, then it is also strongly ...
openaire   +2 more sources

Fractional-order chaotic system with hyperbolic function

open access: yesAdvances in Mechanical Engineering, 2019
In this article, we study bistability, multiscroll, and symmetric properties of fractional-order chaotic system with cubic nonlinearity. The system is configured with hyperbolic function consisting of a parameter “ g .” By varying the parameter “ g ...
G Gugapriya   +3 more
doaj   +1 more source

A one-dimensional nonlinear problem of thermoelasticity in extended thermodynamics

open access: yesResults in Physics, 2018
We solve a nonlinear, one-dimensional initial boundary-value problem of thermoelasticity in generalized thermodynamics. A Cattaneo-type evolution equation for the heat flux is used, which differs from the one used extensively in the literature.
E.K. Rawy
doaj   +1 more source

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