Process

===Mathematics===
*In [[probability theory]]:
**[[Branching process]], a Markov process that models a population
**[[Diffusion process]], a solution to a stochastic differential equation
**[[Empirical process]], a stochastic process that describes the proportion of objects in a system in a given state
**[[Lévy process]], a stochastic process with independent, stationary increments
**[[Poisson process]], a point process consisting of randomly located points on some underlying space
**[[Predictable process]], a stochastic process whose value is knowable
**[[Stochastic process]], a random process, as opposed to a deterministic process
**[[Wiener process]], a continuous-time stochastic process
*[[Process calculus]], a diverse family of related approaches for formally modeling concurrent systems
*[[Process function]], a mathematical concept used in thermodynamics