“…Very recently the well-known sequences of linear positive operators of approximation theory have been transferred to (p, q)-calculus and the advantages of (p, q) analogues of them have been intensively investigated. For some recent works devoted to classical, q and (p, q)-operators, we can refer the readers to Acar (2015Acar ( , 2016, Acar and Aral (2015), Gairola et al (2016), Mishra et al (2013a, b), Mishra and Pandey (2016), Mursaleen et al (2015a, b, c).…”