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Modified $ q$-Bessel functions and $ q$-Macdonald functions

Sbornik: Mathematics, 1996
Summary: The \(q\)-analogues of modified Bessel functions and Macdonald functions are defined in this paper. As in the case of \(q\)-Bessel functions introduced by Jackson, there are two kinds of these functions. Like their classical prototypes, they arise in harmonic analysis on quantum symmetric spaces.
Ol'shanetskij, M. A., Rogov, V.-B. K.
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(p, q)-Extended Bessel and Modified Bessel Functions of the First Kind

Results in Mathematics, 2017
Inspired by certain recent extensions of the Euler's beta, Gauss hypergeometric and confluent hypergeometric functions [1], we introduce (p, q)- extended Bessel function J_{; ; ; \nu, p, q}; ; ; , the (p, q)- extended modified Bessel function I_{; ; ; ; \nu, p, q}; ; ; ; of the first kind of order \nu by making use two additional parameters in the ...
Jankov Maširević, Dragana   +2 more
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Modified Bessel function asymptotics via probability

Statistics & Probability Letters, 1987
Let the modified Bessel function be defined by \[ I_{\rho}(x)=\sum^{\infty}_{k=0}\frac{1}{k!}\frac{1}{\Gamma (k+\rho +1)}(x/2)^{2k+\rho}\quad for\quad \rho \geq -1\quad and\quad -\infty
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Asymptotic approximations for modified Bessel functions

Journal of Mathematical Physics, 1980
The behavior of a qν(x) =Iν(x)/Iνa(x), where Iν is a modified Bessel function with integral or half-integral index ν and Iνa the leading term of its asymptotic series, is investigated for x≫1. It is shown that qν(x) may be approximated by eν(x) =exp(−ν2/2x), the difference rν(x) =qν(x)−eν(x) being of order x−1/4.
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Riemann xi function and modified Bessel functions

St. Petersburg Mathematical Journal
In a recent paper the author constructed a canonical system of differential equations with a diagonal Hamiltonian related to the Riemann zeta function. With this system an integral representation in terms of modified Bessel functions is associated for elements of the de Branges space related to the canonical system.
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