Trigonometric approximation of periodic Signals belonging to generalized weighted Lipschitz W^'(L_r,ξ(t)),(r≥1) - class by Nörlund-Euler (N,p_n) (E,q) operator of conjugate series of its Fourier series

Vishnu Narayan Mishra Kejal Khatri Lakshmi Narayan Mishra Deepmala

degree of approximation generalized weighted Lipschitz class of functions matrix operator conjugate Fourier series Lebesgue integral

41A10 42B05 42B08 40G05