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arXiv 2009.01304math.APmath.CA
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允许非线性项多次变号的$p$ -Laplace问题的非奇异解

Non-singular solutions of $p$-Laplace problems, allowing multiple changes of sign in the nonlinearity

Philip Korman

摘要:

对于$p$ -Laplace Dirichlet问题(其中$φ(t)=t|t|^{p-2}$,$p>1$)\[ φ(u'(x))'+ f(u(x))=0 \;\;\;\; \mbox{for $-1<x<1$}, \;\; u(-1)=u(1)=0 \]假设$f'(u)>(p-1)\frac{f(u)}{u}>0$为$u>γ>0$,而$\int_u^γf(t) \, dt < 0$为所有$u \in (0,γ)$ .那么任何正解,有$\max_{(-1,1)} u(x)=u(0)>γ$,都是非奇异的,不管$f(u)$在$(0,γ)$上改变了多少次符号。解决方案的唯一性如下。

英文摘要:

For the $p$-Laplace Dirichlet problem (where $φ(t)=t|t|^{p-2}$, $p>1$) \[ φ(u'(x))'+ f(u(x))=0 \;\;\;\; \mbox{for $-1<x<1$}, \;\; u(-1)=u(1)=0 \] assume that $f'(u)>(p-1)\frac{f(u)}{u}>0$ for $u>γ>0$, while $\int_u^γf(t) \, dt < 0$ for all $u \in (0,γ)$. Then any positive solution, with $\max_{(-1,1)} u(x)=u(0)>γ$, is non-singular, no matter how many times $f(u)$ changes sign on $(0,γ)$. Uniqueness of solution follows.

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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