%0 Journal Article %A Farzad Fathizadeh %A Olivier Gabriel %T On the Chern–Gauss–Bonnet Theorem and Conformally Twisted Spectral Triples for $C^*$-Dynamical Systems %J Symmetry, integrability and geometry: methods and applications %D 2016 %V 12 %U http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a15/ %G en %F SIGMA_2016_12_a15