If 𝒵=I and the upper signs are taken, then the restriction on
λ is unnecessary.
The restriction |v|<|u| is unnecessary when 𝒵=I and ν is an
For results analogous to (10.23.7) and (10.23.8) see
Watson (1944, §§11.3 and 11.41).
where γ is Euler’s constant and ψ=Γ′/Γ
For collections of sums and series involving modified Bessel functions see
Erdélyi et al. (1953b, §7.15), Hansen (1975), and
Prudnikov et al. (1986b, pp. 691–700).