A mathematical model of a chance quantity that varies with points in time and space. More mathematically, we have a family of random variables with multidimensional parameters, X = { X (λ), λ∈Λ( ⊂Rn ) }. For example, the turbulent velocity v ( t , x ) at time t and spatial x is a chance quantity with a distribution that depends on the initial conditions. In other words, the turbulent velocity v is a random field. When the joint distribution of any finite number of random fields X { X ( λ1 ), X ( λ2 ), …, X ( λh )} is normal, X is called a Gaussian random field. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
時間および空間の点とともに変動する偶然量の数学的モデルをいう。より数学的にいえば,多次元パラメーターをもつ確率変数の族X={X(λ),λ∈Λ(⊂Rn)}となる。例えば時刻t,空間的xでの乱流の速度v(t,x)は,初期条件に依存した分布をもつ偶然量である。すなわち,乱流の速度vは確率場になる。確率場Xの任意の有限個{X(λ1),X(λ2),……,X(λh)}の同時分布が正規分布であるとき,Xをガウス型確率場と呼ぶ。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Stochastic differential equations
A microscope with an ocular micrometer or other pr...
...In particular, the fact that the Kingdom of Si...
…[Yamabe Tomoyuki]. … *Some of the terms that men...
A parliament is a representative body of the peop...
Yamauta means songs unique to Japan, but the conc...
...Other varieties include Amoena cv. Amoena and ...
... The self-assessment system is often said to b...
A Greek writer and orator during the Roman Empire ...
Tea is served. Wang Shi-xi, former poet [Takee-kot...
…the state founded by Othon de la Roche, a Burgun...
…they rejected the national theatrical tradition,...
...It is oviparous and lays about 10 to 14 eggs a...
...Then, in the mid-19th century, hockey clubs ap...
A military commander from the Sengoku period to t...
(Avicenna) The Latin name of the Arabian philosoph...