Ergodicity conjecture for non-extreme Euler-class components

From papers

Let Σ\Sigma be a closed surface of genus gg, let G=PSL(2,R)G=\mathsf{PSL}(2,\mathbb{R}), and let ee be the Euler-class map on the representation space Hom(π,G)\mathsf{Hom}(\pi,G). For each integer kk with 1k2g+b21\leq k\leq 2g+b-2, consider the component e1(22g+b+k)e^{-1}(2-2g+b+k).

Euler-component ergodicity conjecture. For each integer 1k2g+b21\leq k\leq 2g+b-2, the ModΣ\mathsf{Mod}_{\Sigma}-action on the component e1(22g+b+k)e^{-1}(2-2g+b+k) of Hom(π,G)\mathsf{Hom}(\pi,G) is ergodic.

The claim concerns the non-extreme components of the PSL(2,R)\mathsf{PSL}(2,\mathbb{R}) representation space, contrasting with the proper action on the extreme components corresponding to Teichmüller space. The source does not state whether this conjecture has been resolved.

Progress summary

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Sources & referencesView supporting material

Primary source

William M. Goldman, “Mapping Class Group Dynamics on Surface Group Representations”, arXiv:math/0509114 (2006).

Solutions 0

No solutions have been posted yet.