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A test of numerical instability and stiffness in the parametrizations of the ARPEGE and ALADIN models
numerical instability stiffness
2014/12/12
Meteorological numerical weather prediction
(NWP) models solve a system of partial differential equations in time and space.
Critical Magnetic Number in the MHD Rayleigh-Taylor instability
Rayleigh-Taylor instability MHD free boundary problem critical number
2010/12/14
We reformulate in Lagrangian coordinates the two-phase free boundary problem for the equations of Magnetohydrodynamics in a infinite slab, which is incompressible, vis-cous and of zero resistivity, as...
Some Asymptotic Estimates for the Instability Intervals of Hill's Equation
Asymptotic Estimates Instability Intervals Hill's Equation
2010/3/3
In this study, some asymptotic estimates for the length of the instability intervals of Hill's equation, y''(t)+(l -q(t))y(t)=0, are derived by means of an auxiliary eigenvalue problem under various a...