Utilizing the stability characterizations of generalized inverses of linear operator, we investigate the existence of generalized resolvent of linear pencils in
In this paper,Lorentz space of functions of several variables and Besov’s class are considered.We establish an exact approximation order of Besov’s class by p
In this paper we will show that if an approximation process { L n }n ∈ N is shapepreserving relative to the cone of all k-times differentiable functions with n