Advanced ordinary and fractional approximation by positive sublinear operators

Here we consider the ordinary and fractional approximation of functions by sublinear positive operators with applications to generalized convolution type expressed integrals such as Choquet Shilkret ones. The is under differentiability Caputo, Canavati Iterated-Caputo types. We produce Jackson inequalities basic initial conditions. So our way quantitative producing their right hand sides involving modulus continuity derivatives function approximation. give also an application related Picard singular integral operators.