L’ convergence of Hermite-Fejer interpolation and quasi-Hermite-Fejer interpolation based upon ze-ros of general orthogonal polynomials is investigated. This p
In this paper we study the average σ-K width and the average σ-linear width of the unit ball of l<sub>1</sub><sup>x</sup> (R) inl<sub>2</sub><sup>α</sup> (R). Th
1.Some definitions and notions 1.1. Hausdorff gauge and Packing gaugeA funciton h:[0.1]→ R is said to be a dimension function if it has the following propertie