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On the Sums of Inverse Even Powers of Zeros of Regular Bessel Functions by deLyra, Jorge L. is a scholarly article available to read on EtoBox.

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We provide a new, simple general proof of the formulas giving the infinite sums $\sigma(p,\nu)$ of the inverse even powers $2p$ of the zeros $\xi_{\nu k}$ of the regular Bessel functions $J_{\nu}(\xi)$, as functions of $\nu$. We also give and prove a general formula for certain linear combinations of these sums, which can be used to derive the formulas for $\sigma(p,\nu)$ by purely linear-algebraic means, in principle for arbitrarily large powers. We prove that these sums are always given by a ratio of two polynomials on $\nu$, with integer coefficients. We complete the set of known formulas for the smaller values of $p$, extend it to $p=9$, and point out a connection with the Riemann zeta function, which allows us to calculate some of its values.

Author

deLyra, Jorge L.

Published

2013

Language

EN