Approximation by Bivariate(p, q)-Bernstein-Schurer-Kantorovich Operators

ZHA Xing-xing, LIU Xiang-guo, WANG Xiao-yan

Journal of Chaohu University . 2019, (6): 59 -64 . DOI: 10.12152/j.issn.1672-2868.2019.06.008