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arXiv 1708.07092math.DGmath.APmath.CO
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图上$p$ -th Yamabe型方程的正解

Positive Solutions of $p$-th Yamabe Type Equations on Graphs

Xiaoxiao Zhang, Aijin Lin

摘要:

设$G=(V,E)$是一个有限连通赋权图,并假定$1\leqα\leq p\leq q$ .本文考虑$G$上的$p$次Yamabe型方程$$-Δ_pu+hu^{q-1}=λfu^{α-1}.$$,其中$Δ_p$是$p$次离散图Laplacian,$h\leq0$和$f>0$是定义在$G$所有顶点上的实函数.我们采用了一种新的方法来代替[Ge 3]中的方法,并证明了对于某个常数$λ\in\mathbb{R}$,上述方程总是有正解$u>0$。特别地,当$q=p$时,我们的结果将[Ge 3]中的主要定理从$α\geq p>1$的情形推广到$1\leqα\leq p$的情形。有趣的是,我们的新方法也适用于$α\geq p>1$。

英文摘要:

Let $G=(V,E)$ be a finite connected weighted graph, and assume $1\leqα\leq p\leq q$. In this paper, we consider the following $p$-th Yamabe type equation $$-Δ_pu+hu^{q-1}=λfu^{α-1}.$$ on $G$, where $Δ_p$ is the $p$-th discrete graph Laplacian, $h\leq0$ and $f>0$ are real functions defined on all vertices of $G$. Instead of the approach in [Ge3], we adopt a new approach, and prove that the above equation always has a positive solution $u>0$ for some constant $λ\in\mathbb{R}$. In particular, when $q=p$ our result generalizes the main theorem in [Ge3] from the case of $α\geq p>1$ to the case of $1\leqα\leq p$. It's interesting that our new approach can also work in the case of $α\geq p>1$.

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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