On quasi-orthogonal polynomials
Journal of Approximation Theory
Sobolev orthogonality for the Gegenbauer polynomials {Cn(-N+1/2)}n≥0
Journal of Computational and Applied Mathematics
Journal of Computational and Applied Mathematics - Special issue on orthogonal polynomials, special functions and their applications
Zeros of ultraspherical polynomials and the Hilbert-Klein formulas
Journal of Computational and Applied Mathematics
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
A contribution to quasi-orthogonal polynomials and associated polynomials
Applied Numerical Mathematics
The zeros of linear combinations of orthogonal polynomials
Journal of Approximation Theory
Interlacing theorems for the zeros of some orthogonal polynomials from different sequences
Applied Numerical Mathematics
Applied Numerical Mathematics
Convexity of the zeros of some orthogonal polynomials and related functions
Journal of Computational and Applied Mathematics
Zeros of linear combinations of Laguerre polynomials from different sequences
Journal of Computational and Applied Mathematics
A contribution to quasi-orthogonal polynomials and associated polynomials
Applied Numerical Mathematics
When do linear combinations of orthogonal polynomials yield new sequences of orthogonal polynomials?
Journal of Computational and Applied Mathematics
The zeros of linear combinations of orthogonal polynomials
Journal of Approximation Theory
Asymptotic behaviour of Laguerre-Sobolev-type orthogonal polynomials. A nondiagonal case
Journal of Computational and Applied Mathematics
From numerical quadrature to Padé approximation
Applied Numerical Mathematics
Asymptotic properties of Laguerre---Sobolev type orthogonal polynomials
Numerical Algorithms
Real zeros of 2F1 hypergeometric polynomials
Journal of Computational and Applied Mathematics
Journal of Approximation Theory
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In this paper, we study the quasi-orthogonality of orthogonal polynomials. New results on the location of their zeros are given in two particular cases. Then these results are applied to Gegenbauer, Jacobi and Laguerre polynomials when the restrictions on the parameters involved in their definitions are not satisfied. The corresponding weight functions are investigated and the location of their zeros is discussed.