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Math Help - hard analysis problem....

  1. #1
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    hard analysis problem....

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  2. #2
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    The sequence s_n = (-1)^n is an example where the Cesaro mean does not converge.
    However if s_n converges then its Cesaro means converge to the same value. Here.
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  3. #3
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    What do you know about sequences of means?
    That is a place for you to start.
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