Local Lipschitz condition

Japanese: 局所リプシッツ条件 - きょくしょりぷしっつじょうけん
Local Lipschitz condition

When f1 , …, fn are defined on an open set G in n +1-dimensional space with coordinates ( t , x1 , …, xn ), and are continuous there , there always exists a solution x1 = x1 ( t ) , x2 = x2 ( t ), …, xn = xn ( t ) that satisfies ( 2 ) for any ( t0 , x10 , …, xn0 ) ∈G. Furthermore, there is only one such solution if f1 , …, fn satisfy the local Lipschitz condition in G , i.e., if K is any bounded closed set in G , then there exists a constant LK0 such that ( t , x1 , …, xn )∈K, ( t , x1 , …, xn ) ∈K . The solution is defined in an open interval (α, ω), but its domain generally depends on the initial conditions. …

*Some of the terminology explanations that mention the "local Lipschitz condition" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… f1,……,fnが(t,x1,……,xn)を座標とするn+1次元空間内の開集合Gにおいて定義され,そこで連続なときには,任意の(t0,x10,……,xn0)∈Gに対し(2)を満たす解x1x1(t),x2x2(t),……,xnxn(t)はつねに存在する。さらにf1,……,fnGにおいて局所リプシッツ条件,すなわち〈KG内の任意の有界閉集合とするとき,定数LK>0が存在して(t,x1,……,xn)∈K,(t,x1′,……,xn′)∈Kならば,が成り立つならばそのような解はただ一つに限る。解は開区間(α,ω)で定義されるが,その定義域は一般に初期条件に依存する。…

※「局所リプシッツ条件」について言及している用語解説の一部を掲載しています。

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

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