Template-Type: ReDIF-Paper 1.0 Title: Passive stochastic approximation Author-Name: Tsybakov,A.B. Author-WorkPlace-Name: Academy of sciences,Moscow Classification-JEL: 211 Keywords: Nonparametric regression,Stochastic approximation, Estimation of the mode,Estimation for zeros and extrema, Optimal rate of convergence Series: Sonderforschungsbereich 303 Creation-Date: 1988-11 Handle: RePEc:bon:bonsfa:207