Evans functions for periodic waves on infinite cylindrical domains
Evans functions for periodic waves on infinite cylindrical domains
复制标题
无限圆柱域上周期波的埃文斯函数
DOI:
10.1016/j.jde.2009.08.003
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发表时间:
2010
影响因子:
2.4
通讯作者:
Bjorn Sandstede
中科院分区:
文献类型:
--
作者:
M. Oh;Bjorn Sandstede
Using Galerkin approximations, an Evans function for spatially periodic waves on infinite cylindrical domains is constructed. It is also shown that the Evans function can be used to define a parity index for periodic waves that detects whether the wave admits an odd number of real unstable eigenvalues. This parity index depends only on local information for the existence problem of the wave: in particular, it uses information about the linear dispersion relation near zero and the orientability of the unstable and stable manifolds along the nonlinear wave. The results are applied to small-amplitude wave trains for a scalar equation on an infinite strip.
DOI:
--
发表时间:
2006
期刊:
J. Differential Equations no.1,225
影响因子:
--
作者:
Deng;Jian; Nii;Shunsaku
通讯作者:
Shunsaku