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C. Matheus - Square tiled surfaces (Part 3)
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Descriptif
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
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