Approximate Closed-Form Formulas for the Zeros of the Bessel Polynomials

Figure 3

Dependence of 𝜈(1,𝑛,𝑎) and 𝜕𝜈(𝑘,𝑛,𝑎)/𝜕𝑘|_𝑘=𝑛/2 on 𝑛 for 𝑎=10,20,30,40,100. Plots are shown in gray-level intensity, from lower to higher, according to the value of 𝑎.

(a)

(b)