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Topic: Re: Exchanging the order of summation
Replies: 3   Last Post: Nov 21, 2011 11:30 AM

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Joe keane

Posts: 13
Registered: 11/12/11
Re: Exchanging the order of summation
Posted: Nov 12, 2011 7:34 AM
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In article <d76d43c30a634c5cb29e6ab44da4d4e9@CITESHT4.ad.uillinois.edu>,
John Washburn  <Math@WashburnResearch.org> wrote:
> Are there conditions other than uniform convergence or absolut
> convergence, which permit the order of summation to interchanged?


It does work more often than you think.

These are *necessary* conditions, which is a lot more than *sufficient*
conditions, which so, so far i know, dosn't educate anyone.

If you figure out when this works then you have the greatest paper since
Johann Hermis.



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