q-Difference Equation for the Operator E ̃(x,a;θ) and their Applications for the Polynomials h_n (a,b,x|q^(-1)) . Iraqi Journal of Science [Internet]. 2023 Jun. 30 [cited 2025 Jan. 23];64(6):3000-1. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7167