The Einstein-scalar field Lichnerowicz equations on graphs

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-06-05 DOI:10.1007/s00526-024-02737-1
Leilei Cui, Yong Liu, Chunhua Wang, Jun Wang, Wen Yang
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引用次数: 0

Abstract

In this article, we consider the Einstein-scalar field Lichnerowicz equation

$$\begin{aligned} -\Delta u+hu=Bu^{p-1}+Au^{-p-1} \end{aligned}$$

on any connected finite graph \(G=(V,E)\), where ABh are given functions on V with \(A\ge 0\), \(A\not \equiv 0\) on V, and \(p>2\) is a constant. By using the classical variational method, topological degree theory and heat-flow method, we provide a systematical study on this equation by providing the existence results for each case: positive, negative and null Yamabe-scalar field conformal invariant, namely \(h>0\), \(h<0\) and \(h=0\) respectively.

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图上的爱因斯坦-标量场李奇诺维茨方程
在本文中,我们考虑在任意连通的有限图\(G=(V,E)\)上的爱因斯坦-标量场李奇诺维茨方程 $$begin{aligned} -\Delta u+hu=Bu^{p-1}+Au^{-p-1} \end{aligned}$$,其中 A、B、h 是 V 上的给定函数,V 上有\(A\ge 0\)、\(A\not \equiv 0\) 和\(p>;2)是一个常数。通过使用经典的变分法、拓扑度理论和热流法,我们对该方程进行了系统的研究,提供了正Yamabe-scalar场保角不变性、负Yamabe-scalar场保角不变性和空Yamabe-scalar场保角不变性三种情况下的存在结果,即分别为\(h>0\)、\(h<0\)和\(h=0\)。
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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