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arXiv · 2203.13002

Cnoidal waves for the quintic Klein-Gordon and Schr\"odinger equations: Existence and orbital instability

Gabriel E. Bittencourt Moraes·Guilherme de Loreno
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Abstract

In the present paper, we establish the existence and orbital instability results of cnoidal periodic waves for the quintic Klein-Gordon and nonlinear Schr\"odinger equations. The spectral analysis for the corresponding linearized operator is established by using the Floquet theory. The orbital instability is determined by applying an abstract result due to Shatah and Strauss.

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Gabriel E. Bittencourt Moraes, Guilherme de Loreno. 2022-03-24. Cnoidal waves for the quintic Klein-Gordon and Schr\"odinger equations: Existence and orbital instability. https://arxiv.org/abs/2203.13002

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