A positive definite linear functional of class (s=2 ), generalization of Chebyshev polynomials. - Mohamed Ihssen Tounsi; Majed Benabdallah; Mohamed Jalel Atia (Period. Math. Hung., 2020)

On Spectral Vectorial Differential Equation of Generalized Hermite Polynomials. - Mohamed Jalel Atia; Majed Benabdallah (Axioms, 2022)