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单词 StolzCesaroTheorem
释义

Stolz-Cesaro theorem


Let (an)n1 and (bn)n1 be two sequences of real numbers. If bn is positive, strictly increasingPlanetmathPlanetmath and unboundedPlanetmathPlanetmath and the following limit exists:

limnan+1-anbn+1-bn=l

Then the limit:

limnanbn

also exists and it is equal to l.

Remark. This theorem is also valid if an and bn are monotoneMathworldPlanetmath, tending to 0.

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更新时间:2025/5/4 19:29:43