IRS on orbits and the case of $SL(2, \mathbb{R} ) \ltimes \mathbb{R} ^2$

Abstract: Let $G$ be a connected Lie group and $\text{Sub}_G$ be the space of closed subgroups of $G$ equipped with the Chabauty topology. In this article, we investigate the existence of invariant random subgroups of $G$ supported on various orbits of the conjugation action of $G$ on $\text{Sub}_G$. We also find the orbit closure for each of these orbits in the case of the Lie group $G=\SL(2,\mathbb{R})\ltimes \mathbb{R}^2$.