Journal of Computational Mathematics, Vol. 20, No. 3 (May 2002), pp. 277-288 (12 pages) Some superapproximation and ultra-approximation properties in function, gradient and two-order derivative ...
This is a preview. Log in through your library . Journal Information This journal, begun in 1943 as Mathematical Tables and Other Aids to Computation, publishes original articles on all aspects of ...