The present note investigates the divergence phenomenon of copositive approximation by poiynomials inL’spaces. We show that the Jackson type estimates cannot h
The explicit form for the orthonormal periodic trigonometric spline wavelet is given. We also give the decomposition and reconstruction equations.Each of the tw
The present paper shows that for any sequence of real numbers with infinite distinct elements{λ_n},therational combination of{x~λ}are always dense in C_[0,1].
In this note we characterize the geometric facture of a (μ, r, k) - FES. Namely, for a C~μ triangular in-terpolation schcme with C~r vertex data, any angle of