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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
Recurrence relations are equations which define one or more sequences recursively. Some specific kinds of recurrence relation can be "solved" to obtain a non-recursive definition (e.g., a closed-form expression). Use of recursion in an algorithm has both advantages and disadvantages. The main advantage is usually the simplicity of instructions.
Eternal return (or eternal recurrence) is a philosophical concept which states that time repeats itself in an infinite loop, and that exactly the same events will continue to occur in exactly the same way, over and over again, for eternity.
In a personal essay for PEOPLE, TikTok star Eldiara Doucette opens up about losing her dominant arm to sarcoma and coping with the uncertainty of recurrence My Rare Cancer Has Recurred 3 Times in ...
The recurrence time depends on the required degree of closeness (the size of the phase volume). To achieve greater accuracy of recurrence, we need to take smaller initial volume, which means longer recurrence time. For a given phase in a volume, the recurrence is not necessarily a periodic recurrence.
Historic recurrence is the repetition of similar events in history. [ a ] [ b ] The concept of historic recurrence has variously been applied to overall human history (e.g., to the rises and falls of empires ), to repetitive patterns in the history of a given polity , and to any two specific events which bear a striking similarity. [ 4 ]
Recurrent event analysis is a branch of survival analysis that analyzes the time until recurrences occur, such as recurrences of traits or diseases. Recurrent events are often analyzed in social sciences and medical studies, for example recurring infections, depressions or cancer recurrences.
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