The truncation error associated with a given sampling representation is defined as the difference between the signal and an approximating sumutilizing a finite
In this paper, we will use the 2r-th Ditzian-Totik modulus of smoothness ω2r(f,t)p to discuss the direct and inverse theorem of approximation by Left-Bernstein
Let Tμ,b,m be the higher order commutator generated by a generalized fractional integral operator Tμ and a BMO function b. In this paper, we will study the bo