Before revision: A symmetry-guided time redefinition may enhance and simplify analyses of historical series displaying recurrent patterns . Enforcing a simple-scaling symmetry with Hurst exponent 1/2 and the requirement of increments' stationarity , we identify a time-definition protocol in the financial case.
After revision: A symmetry-guided time redefinition may enhance and simplify analyses of historical series displaying recurrent patterns . Enforcing a simple-scaling and stationarity of the distributions of returns , we identify a time-definition protocol in the financial case.