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arXiv 1811.04044math.AP
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非线性标量场方程的非径向归一化解

Nonradial normalized solutions for nonlinear scalar field equations

Louis Jeanjean, Sheng-Sen Lu

摘要:

研究了非线性标量场方程$$ -Δu=f(u)-μu, \quad u \in H^1(\mathbb{R}^N) \quad \text{with} \quad \|u\|^2_{L^2(\mathbb{R}^N)}=m. $$这里$f\in C(\mathbb{R},\mathbb{R})$,$m>0$是给定常数,$μ\in\mathbb{R}$是拉格朗日乘子.在质量亚临界的情况下,但在一般假设的非线性$f$,我们证明了存在一个非径向解的任何$N\geq4$,并获得多个(有时无限多)非径向解时,$N=4$或$N\geq6$。特别是,所有这些解决方案都是改变符号的。

英文摘要:

We study the following nonlinear scalar field equation $$ -Δu=f(u)-μu, \quad u \in H^1(\mathbb{R}^N) \quad \text{with} \quad \|u\|^2_{L^2(\mathbb{R}^N)}=m. $$ Here $f\in C(\mathbb{R},\mathbb{R})$, $m>0$ is a given constant and $μ\in\mathbb{R}$ is a Lagrange multiplier. In a mass subcritical case but under general assumptions on the nonlinearity $f$, we show the existence of one nonradial solution for any $N\geq4$, and obtain multiple (sometimes infinitely many) nonradial solutions when $N=4$ or $N\geq6$. In particular, all these solutions are sign-changing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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