https://theorempath.com/topics/gamma-distribution
Gamma Distribution. Sum of Exponentials, Chi-squared, Poisson Conjugacy | TheoremPath
May 11, 2026 - Rigorous reference for the Gamma distribution: density and MGF, additivity under independent sums, the Chi-squared as a special case, conjugate prior for the...
sum of exponentialsgamma distributionchi squaredpoissonconjugacy