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arXiv math/0702560math.APmath.DS
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一类负定线性化平衡点的不稳定性

Instability of an equilibrium with negative definite linearization

Michael Robinson

摘要:

提出了一个至少有一个平衡点的非线性抛物型微分方程。这个平衡被证明有一个负定的线性化,但频谱,其中包括零。一个初等的构造表明,平衡是不稳定的。

英文摘要:

A nonlinear parabolic differential equation is presented which has at least one equilibrium. This equilibrium is shown to have a negative definite linearization, but a spectrum which includes zero. An elementary construction shows that the equilibrium is not stable.

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