2 problems

Let $G$ be a finitely generated group and let $H$ be a subgroup. An $H$-almost invariant subset $A$ is $H$-proper if it is not equivalent to either the empty set or $G$ modulo fini…

Let $G$) be a finitely generated group and let $H$ be a subgroup. An $H$-almost invariant subset $A$ is $H$-proper if it is not equivalent to either the empty set or $G$ modulo fin…