Exact values of widths of classes of analytic functions on the disk and best linear approximation methods

In the Hardy space H-p,H-p (p greater than or equal to 1, 0 less than or equal to rho less than or equal to 1, H-p,H-1 equivalent to H-p) we develop best linear approximation methods (previously studied by Taikov and Ainulloev) for the classes W(r, Phi, mu) of analytic functions on the unit disk and calculate the exact values of linear, Gelfand, and informational n-widths of these classes.