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出典：Wikipedia |
Wandering set
出典:『Wikipedia』 (2010/11/23 04:25 UTC 版)
英語による解説
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In those branches of mathematics called dynamical systems and ergodic theory, the concept of a wandering set formalizes a certain idea of movement and mixing in such systems. When a dynamical system has a wandering set of non-zero measure, then the system is a dissipative system. This is very much the opposite of a conservative system, for which the ideas of the Poincaré recurrence theorem apply. Intuitively, the connection between wandering sets and dissipation is easily understood: if a portion of the phase space "wanders away" during normal time-evolution of the system, and is never visited again, then the system is dissipative. The language of wandering sets can be used to give a precise, mathematical definition to the concept of a dissipative system. The notion of wandering sets in phase space was introduced by Birkhoff in 1927.「Wandering set」の部分一致の例文検索結果
該当件数 : 2件
He set out on his wandering journey.
彼は行方定めぬ旅に出た. - 研究社 新和英中辞典
However, Yugyo bi (day of wandering) for Daishogun was set, and misfortune would not occur during that time.
ただし、大将軍の遊行日（ゆぎょうび）が定められ、その間は凶事が無いとされた。 - Wikipedia日英京都関連文書対訳コーパス
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