Generalized Taylor formula with integral remainder for Besov-Dunkl   spaces
  In the present paper, we propose to prove some properties and estimates of the integral remainder in the generalized Taylor formula associated to the Dunkl operator on the real line and to describe the Besov-Dunkl spaces for which the remainder has a given order. 
Chokri Abdelkefi, Safa Chabchoub and Faten Rached
math.FA