Studies in the Theory of Random Processes is a foundational mathematics text by Ukrainian mathematician A. V. Skorokhod, originally published in 1961. It provides an in-depth exploration of stochastic differential equations and limit theorems, serving as an essential reference for probability specialists and researchers.
Skorokhod goal was taming and structuring randomness into rigorous mathematical proofs. He Mostly treats randomness as "Mild" or manageable via central limit theorems. In contrast, Benoît Mandelbrot (known for exposing the "roughness" and complexity of chaotic, natural systems) championed "Wild Randomness" where variance can be infinite.
This random lineage continues today through the works of contemporaries such as Michel Talagrand, Avi Wigderson, Hugo Duminil-Copin and others.