Probability Pdf — Chung

Could you give more explanation on chung assumputions Or Provide Assumuption on chung distiribution

References: Chung, K. L., & Fuchs, W. H. J. (1946). On the law of the iterated logarithm. Proceedings of the American Mathematical Society, 2(5), 312-319. chung probability pdf

$$ f_{\text{Chung}}(x) = \frac{1}{2\sqrt{2\pi}}\frac{1}{x^{\frac{3}{2}}} \exp\left( - \frac{1}{2x} \right) $$ for $x>0$ Could you give more explanation on chung assumputions

Here, I couldn't find or assume well known standard Chung distribution. or Chung-Sobel) you are referring to

If you provide more information or clarify which Chung probability distribution or theorem (e.g., Chung-Fuchs, Chung-Lai, or Chung-Sobel) you are referring to, I may provide you a more accurate response and high-quality equations.