ON AN INTERPOLATION PROCESS OF LAGRANGE-HERMITE TYPE


Giuseppe Mastroianni, Gradimir V. Milovanović, Incoronata Notarangelo




We consider a Lagrange-Hermite polynomial, interpolating a function at the Jacobi zeros and, with its first $(r-1)$ derivatives, at the points $m 1$. We give necessary and sufficient conditions on the weights for the uniform boundedness of the related operator in certain suitable weighted $L^p$-spaces, $1