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arXiv · 1710.04922

Large versus bounded solutions to sublinear elliptic problems

Ewa Damek·Zeineb Ghardallou
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Abstract

Let $L $ be a second order elliptic operator with smooth coefficients defined on a domain $\Omega \subset \mathbb{R}^d$ (possibly unbounded), $d\geq 3$. We study nonnegative continuous solutions $u$ to the equation $L u(x) - \varphi (x, u(x))=0$ on $\Omega $, where $\varphi $ is in the Kato class with respect to the first variable and it grows sublinearly with respect to the second variable. Under fairly general assumptions we prove that if there is a bounded non zero solution then there is no large solution.

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Ewa Damek, Zeineb Ghardallou. 2017-10-13. Large versus bounded solutions to sublinear elliptic problems. https://arxiv.org/abs/1710.04922

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