BULLETIN OF THE MALAYSIAN MATHEMATICAL SCIENCES SOCIETY, cilt.39, sa.1, ss.1-16, 2016 (SCI-Expanded)
This study deals with approximation properties by the complex bivariate Balazs-Szabados operators of tensor-product kind. The upper and lower estimates and a Voronovskaja-type theorem of these operators are given. The exact degree of approximation for these operators is obtained.