Square tiled surfaces (Part 2)
Appears in collection : Summer School 2018 - Teichmüller dynamics, mapping class groups and applications.
a) basic definitions and examples b) strata and genus c) reduced and primitive origamis, SL(2,R) action, Veech groups d) automorphisms and affine homeomorphismse) homology of origamis f) Kontsevich-Zorich cocycle g) Lyapunov exponents of the Wollmilchsau
