The smoothness and approximation properties of certain discrete operators for bivariate functions are examined.
@article{urn:eudml:doc:42113, title = {Properties of some bivariate approximants.}, journal = {Collectanea Mathematica}, volume = {44}, year = {1993}, pages = {237-246}, zbl = {0805.41011}, mrnumber = {MR1280741}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:42113} }
Pych-Taberska, Paulina. Properties of some bivariate approximants.. Collectanea Mathematica, Tome 44 (1993) pp. 237-246. http://gdmltest.u-ga.fr/item/urn:eudml:doc:42113/