On the non-autonomous Schr？dinger-Poisson problems in $\mathbb{R}^{3}$

In this paper, we study the problem: \begin{equation*} \left\{ \begin{array}{ll} -\Delta u+u+\lambda K\left( x\right) \phi u=a\left( x\right) \left\vert u\right\vert ^{p-2}u & \text{ in }\mathbb{R}^{3}, \\ -\Delta \phi =K\left( x\right) u^{2} & \ \text{in }\mathbb{R}^{3}, \end{array} \right. \end{equation*} where $\lambda >0$ and $20$, we establish some existence results of positive solutions, depending on the parameter $\lambda$. More importantly, we prove the existence of ground state solutions for the case $3.18\thickapprox \frac{1+\sqrt{73}}{3}