Topology & Geometric Group Theory Seminar

Fall 2008

1:30 – 2:30, Malott 406

Thursday, October 9

Gabriela Schmithüsen, Universität Karlsruhe

Origamis in outer space

Origamis are purely combinatorial objects which define finite degree coverings of the torus together with a natural translation structure. Such a square tiled translation surface defines an embedding of the Poincare-upper half plane into Teichmüller space Tg,n; the image in moduli space Mg,n is a Teichmüller curve. They have been intensively studied in the last years. We define a similar construction in Culler–Vogtmann outer space and use it in order to obtain new insights into the corresponding Teichmüller curves.

Back to seminar home page.