FIFTH ORDER GRAVITY WAVE THEORY
نویسندگان
چکیده
منابع مشابه
A Stability Analysis of Fifth-Order Water Wave Models
We study the stability of traveling wave solutions to a fifth-order water wave model. By solving a constrained minimization problem we show that “ground state” traveling wave solutions exist. Their stability is shown to be determined by the convexity or concavity of a function d(c) of the wave speed c. The analysis makes frequent use of the variational properties of the traveling waves.
متن کاملProton–proton fusion in effective field theory to fifth order
The proton–proton fusion process pp → de+νe is calculated at threshold to fifth order in pionless effective field theory. There are two unknown two-body currents contributing at the second and fourth orders. Combined with the previous results for νed and ν̄ed scattering, computed to third order in the same approach, we conclude that a ∼ 10% measurement of reactor ν̄ed scattering measurement could...
متن کاملSoliton Perturbation Theory for the Generalized Fifth-Order Nonlinear Equation
The adiabatic parameter dynamics of 1-soliton solution of the generalized fifth-order nonlinear equation is obtained by virtue of the soliton perturbation theory. The adiabatic change of soliton velocity is also obtained in this paper.
متن کاملOn the Instability of Solitary-wave Solutions for Fifth-order Water Wave Models
This work presents new results about the instability of solitarywave solutions to a generalized fifth-order Korteweg-deVries equation of the form ut + uxxxxx + buxxx = (G(u, ux, uxx))x, where G(q, r, s) = Fq(q, r) − rFqr(q, r) − sFrr(q, r) for some F (q, r) which is homogeneous of degree p+ 1 for some p > 1. This model arises, for example, in the mathematical description of phenomena in water w...
متن کاملSpin-wave theory at constant order parameter
We derive the low-temperature properties of spin-S quantum Heisenberg magnets from the Gibbs free energy G(M ) for fixed order parameter M. Assuming that the low-lying elementary excitations of the system are renormalized spin waves, we show that a straightforward 1/S expansion of G(M ) yields qualitatively correct results for the low-temperature thermodynamics, even in the absence of long-rang...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coastal Engineering Proceedings
سال: 2011
ISSN: 2156-1028,0589-087X
DOI: 10.9753/icce.v7.10