Recurrence

{{Wiktionary|recurrence|recur|recurrent}}

Recurrence and recurrent may refer to:

• Disease recurrence, also called "relapse"
• Eternal recurrence, the concept that the universe is perpetually recurring
• Historic recurrence, the repetition of similar events in history
• Poincaré recurrence theorem, Henri Poincaré's theorem on dynamical systems
• Radial recurrent artery, arising from the radial artery immediately below the elbow
• Recursive definition
• Recurrent neural network, a special artificial neural network
• Recurrence period density entropy, an information-theoretic method for summarising the recurrence properties of dynamical systems
• Recurrence plot, a statistical plot that shows a pattern that re-occurs
• Recurrence relation, an equation which defines a sequence recursively
• Recurrent rotation, a term used in contemporary hit radio for frequently aired songs
• Recurrence, The Railway Children (band) album