>[!abstract] >The *mean sojourn time* (or sometimes *mean waiting time*) for an object in a dynamical system is the amount of time an object is expected to spend in a system before leaving the system permanently. This concept is widely used in various fields, including physics, chemistry, and stochastic processes, to study the behavior of systems over time ("Mean sojourn time", 2025). ## References - Mean sojourn time. (2025, March 22). In *Wikipedia*. https://en.wikipedia.org/w/index.php?title=Mean_sojourn_time&oldid=1274216264 ## Related - [[Ergodic theory]] - [[Markov chain]]