Energy functions on moduli spaces of flat surfaces with erasing forest

Duc-Manh Nguyen (1)

1 IMB - Institut de Mathématiques de Bordeaux

Flat surfaces with erasing forest are obtained by deforming the flat metric structure of translation surfaces, the moduli space of such surfaces is a deformation of the moduli space of translation surfaces. On the moduli space of flat surfaces with erasing forest, one can define some energy function involving the area of the surface, and the total length of the erasing forest. Note that on this space, we have a volume form which is defined by using geodesic triangulations. The aim of this paper is to prove that the integral of the energy functions mentionned above with respect to this volume form is finite. As applications, we will use this result to recover some classical results due to Masur-Veech, and Thurston.

Domaines: Géométrie différentielle [math.DG]; Topologie géométrique [math.GT]

Duc-Manh Nguyen. Energy functions on moduli spaces of flat surfaces with erasing forest. Mathematische Annalen, 2012, 353 (3), pp.997-1036. ⟨10.1007/s00208-011-0707-7⟩. ⟨hal-00973999⟩