C. Matheus - Square tiled surfaces (Part 3)
Résumé
a) basic definitions and examples
b) strata and genus
c) reduced and primitive origamis, SL(2,R) action, Veech groups
d) automorphisms and affine homeomorphisms
e) homology of origamis
f) Kontsevich-Zorich cocycle
g) Lyapunov exponents of the Wollmilchsau