The characterization of isotropic Besov spaces for in terms of progressive differences of a function on dyadic points is obtained. Moreover, for withan analogou
For a given triangulation Δ of a region R of interest, let S<sub>8</sub><sup>2</sup>(Δ): = {s∈C<sup>2</sup>(R): s|<sub>1</sub>∈P<sub>8</sub>,l∈Δ}be the space
Recently people proved that every f∈C[0, 1] can be uniformly approximatedby polynomial sequences {P<sub>n</sub>}, {Q<sub>n</sub>} such for any x∈[0,1] and n=1
In this paper basic results for a theory of orthogonal matrix polynomials with respect to a conjugate bilinear matrix moment functional are proposed. Properties