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arXiv · 2406.09746

Complex zeros of Bessel function derivatives and associated orthogonal polynomials

Seok-Young Chung·Sujin Lee·Young Woong Park
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Abstract

We introduce a sequence of orthogonal polynomials whose associated moments are the Rayleigh-type sums, involving the zeros of the Bessel derivative $J_\nu'$ of order $\nu$. We also discuss the fundamental properties of those polynomials such as recurrence, orthogonality, etc. Consequently, we obtain a formula for the Hankel determinant, elements of which are chosen as the aforementioned Rayleigh-type sums. As an application, we complete the Hurwitz-type theorem for $J_\nu'$, which deals with the number of complex zeros of $J_\nu'$ depending on the range of $\nu$.

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Seok-Young Chung, Sujin Lee, Young Woong Park. 2024-06-14. Complex zeros of Bessel function derivatives and associated orthogonal polynomials. https://arxiv.org/abs/2406.09746

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