Iterated Grafting and Holonomy Lifts of Teichmueller space

Abstract

Let $X$ be a closed hyperbolic surface and $\lambda ,\eta$ be weighted geodesic multicurves which are short on X. We show that the iterated grafting along $\lambda$ and $\eta$ is close in the Teichmueller metric to grafting along a single multicurve which can be given explicitly in terms of $\lambda$ and $\eta$. Using this result, we study the holonomy lifts $g{r}_{\lambda }{\rho }_{X,\lambda }$ of Teichmueller geodesics ${\rho }_{X,\lambda }$ for integral laminations $\lambda$ and show that all of them have bounded Teichmueller distance to the geodesic ${\rho }_{X,\lambda }$. We obtain analogous results for grafting rays. Finally we consider the asymptotic behaviour of iterated grafting sequences $\gr_{nλ}X$ and show that they converge geometrically to a punctured surface.

Major rewrite. Extended all of the results to multicurves and included a much more detailed treatment of holonomy lifts of both grafting rays and Teichmueller geodesics. 39 pages, 6 figures

References in corpus (1)

• Asymptotic behavior of grafting rays