Results 81 to 90 of about 1,034,900 (267)
Enhanced quantum sensing with hybrid exceptional-diabolic singularities
New Journal of PhysicsWe report an enhanced sensitivity for detecting linear perturbations near hybrid (doubly degenerated) exceptional-diabolic (HED) singular points in a four mode bosonic system.
Javid Naikoo +2 more
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Some Remarks on 1D Schrödinger Operators With Localized Magnetic and Electric Potentials
Frontiers in Physics, 2019 One-dimensional Schrödinger operators with singular perturbed magnetic and electric potentials are considered. We study the strong resolvent convergence of two families of the operators with potentials shrinking to a point.
Yuriy Golovaty
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AN INTRODUCTION TO SINGULAR PERTURBATIONS
Natural Resource Modeling, 2000 ABSTRACT. In this article we discuss the asymptotic analysis of so‐called singularly perturbed differential equations. We begin by discussing some very simple nonmathematical examples, and then proceed to two mathematical examples, namely, the well‐known example of Friedrichs and a problem of John Mahony's.
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, 2014 The positive stability and D-stability of singular M-matrices, perturbed by (non-trivial) nonnegative rank one perturbations, is investigated. In special cases positive stability or D-stability can be established. In full generality this is not the case,
Bierkens, Joris, Ran, André
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Singular perturbations for a subelliptic operator [PDF]
ESAIM: Control, Optimisation and Calculus of Variations, 2018 We study some classes of singular perturbation problems where the dynamics of the fast variables evolve in the whole space obeying to an infinitesimal operator which is subelliptic and ergodic. We prove that the corresponding ergodic problem admits a solution which is globally Lipschitz continuous and it has at most a logarithmic growth at infinity ...
Paola Mannucci +2 more
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Asymptotic behavior of elliptic boundary-value problems with some small coefficients
Electronic Journal of Differential Equations, 2008 The aim of this paper is to analyze the asymptotic behavior of the solutions to elliptic boundary-value problems where some coefficients become negligible on a cylindrical part of the domain. We show that the dimension of the space can be reduced and
Senoussi Guesmia
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Non-supersymmetric infrared perturbations to the warped deformed conifold
, 2010 We analyze properties of non-supersymmetric isometry-preserving perturbations to the infrared region of the warped deformed conifold, i.e. the Klebanov Strassler solution.
McGuirk, Paul +2 more
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Topography influence on the Lake equations in bounded domains
, 2013 We investigate the influence of the topography on the lake equations which describe the two-dimensional horizontal velocity of a three-dimensional incompressible flow. We show that the lake equations are structurally stable under Hausdorff approximations
Lacave, Christophe +2 more
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Well-posedness of non-autonomous degenerate parabolic equations under singular perturbations
Electronic Journal of Differential Equations, 2016 This article concerns the asymptotic behavior of the following non-autonomous degenerate parabolic equation with singular perturbations defined on a bounded domain in $\mathbb{R}^n$, $$ \frac{\partial u}{\partial t}+\lambda u-\operatorname{div ...
Jingyu Wang, Yejuan Wang, Dun Zhao
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On Singular Perturbations of Flexible and Variable-Speed Wind Turbines
International Journal of Aerospace Engineering, 2012 A model for the mechanical dynamics of a wind turbine is developed, which is the composition of three physical mechanisms: flexion, torsion, and rotational dynamics.
R. Oulad Ben Zarouala +3 more
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