Non-differentiability of Alpha Function at the Boundary of Flat

作者：Jian; Lu; ZHANG; Min; ZHOU不可微边界阿尔法平板哈密顿系统变分方法自由度动稳定

摘要：With the variational method introduced by Mather,we construct a mechanical Hamiltonian system whose α function has a flat F and is non-differentiable at the boundary F.In the case of two degrees of freedom,we prove that this phenomenon is stable under perturbations of Maé's.

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