[數撚圍爐區] You need that lemma. (13)

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仲有一個可能就係Stat inference既問題,個parameter asymptotic distribution 多數要再higher order moments exist, 一開始就用higher order既話就算exist & estimate 到都有可能做唔到inference
2019-05-08 19:43:45
明咗 唔該巴打
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2019-05-09 00:54:12
今日考 analysis 有一題:
Let An, Bn, be real valued positive sequences. Given that summation(Bn) converges and A(n+1)/A(n) ≤ B(n+1)/B(n) for all n, prove that summation(An) also converges.

應該唔可以用ratio test, 因為 converse 唔一定啱
應該要用cauchy criterion? 但係唔係好識砌
求教
2019-05-09 00:58:38
cym 2241?
2019-05-09 01:04:55
唔係 海外
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