TY - JOUR AU - Aslan, Reşat AU - Izgi, Aydin PY - 2021 TI - Approximation by a new generalization of Szász-Mirakjan operators via \((p,q)\)-calculus JO - Journal of Nonlinear Sciences and Applications SP - 310--323 VL - 14 IS - 5 AB - In this work, we obtain the approximation properties of a new generalization of Szász-Mirakjan operators based on post-quantum calculus. Firstly, for these operators, a recurrence formulation for the moments is obtained, and up to the fourth degree, the central moments are examined. Then, a local approximation result is attained. Furthermore, the degree of approximation in respect of the modulus of continuity on a finite closed set and the class of Lipschitz are computed. Next, the weighted uniform approximation on an unbounded interval is showed, and by the modulus of continuity, the order of convergence is estimated. Lastly, we proved the Voronovskaya type theorem and gave some illustrations to compare the related operators' convergence to a certain function. SN - ISSN 2008-1901 UR - http://dx.doi.org/10.22436/jnsa.014.05.02 DO - 10.22436/jnsa.014.05.02 ID - Aslan2021 ER -