2 problems

Let $G$ be a group acting freely on an $cmathbb{R}$-tree. Such a group is called finitely generated $cmathbb{R}$-free when it is finitely generated. Morgan–Shalen conjecture. Every…

Let $G$ be a group acting freely on an $cmathbb{R}$-tree. A free product of finitely many copies of $cmathbb{R}$ means $cmathbb{R} * \cdots * cmathbb{R}$, with finitely many factor…