Nonexistence of radial time-periodic solutions of reaction-diffusion equations with generic nonlinearities
Nonexistence of radial time-periodic solutions of reaction-diffusion equations with generic nonlinearities
复制标题
具有一般非线性的反应扩散方程的径向时间周期解不存在
DOI:
10.1016/j.jde.2023.03.018
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发表时间:
2023
影响因子:
2.4
通讯作者:
Poláčik, Peter
中科院分区:
文献类型:
--
作者:
Poláčik, Peter
We consider reaction-diffusion equations u t= Δ u+ f (u) on the entire space R N, N≥ 4. Assuming that the function f is sufficiently smooth (C 2 is sufficient) and has only nondegenerate zeros, we prove that the equation has no bounded solutions u (x, t) which are radial in x, and periodic and nonconstant in t. We also prove some weaker nonexistence results for N= 3. In dimensions N= 1, 2, the nonexistence of time-periodic solutions (radial or not) is known by results of Gallay and Slijepčević.
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DOI:
--
发表时间:
2020
期刊:
Discrete and Continuous Dynamical Systems. Series A
影响因子:
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