An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : recurrence
Poincaré recurrence theorem
  فربین ِ باز‌آمد ِ پو‌آنکاره   
farbin-e bâzâmad-e Poincaré

Fr.: théorème de récurrence de Poincaré   

In an → isolated system, any initial state will occur again in the course of the → evolution of the system over a sufficiently long but finite → time.

Poincaré sphere; → recurrence; → theorem.

recurrence
  باز‌آمد   
bâzâmad

Fr.: récurrence   

1) An act or instance of recurring.
2) Return to a previous condition, habit, subject, etc. (Dictionary.com). → recurrence relation.

Verbal noun of → recur.

recurrence relation
  باز‌آنش ِ باز‌آمد   
bâzâneš-e bâzâmad

Fr.: relation de recurrence   

A → sequence based on a → rule that gives the next → term as a → function of the previous term(s). For example, the sequence 3, 9, 21, 45,... can be represented by the recurrence relation un+1 = 2un + 3, where u1 = 3 and n ≥ 1.

recurrence; → relation.