Journal of Mathematical Inequalities · Volume 12, Issue 2 Inequalities for Shepard-type operators 12-38 Pages 517-530 DOI 10.7153/jmi-2018-12-38 Downloads Short PDF Full PDF PNG Authors U. Amato B. Della Vecchia Keywords Shepard-type operators direct and converse results saturation Shepard-type curves degree-elevation formula progressive iterative approximation technique Subject classes 41A36 41A25 65D17