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math.CA2021
On differential relations of 2-orthogonal polynomials
Teresa Augusta Mesquita
A generic differential operator on the vectorial space of polynomial functions was presented in a recent work and applied in the study of differential relations fulfilled by polyno…
math.CA2021
About the (Hahn) classical character of 2-orthogonal solutions of two families of differential equations of third order
Teresa Augusta Mesquita
Considering a differential operator of third order that does not increase the degree of polynomials, we analyse some properties of elements of the dual space of 2-orthogonal polyno…