单词 | Banach's fixed-point theorem |
释义 | Banach's fixed-point theorem [¦bä´näks ´fikst ´pȯint `thir·ǝm] MATHEMATICS A theorem stating that if a mapping ƒ of a metric space E into itself is a contraction, then there exists a unique element x of E such that ƒ x = x. Also known as Caccioppoli-Banach principle. |
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