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Hi all,

What is the significance of Gibbs and Jensen inequality in Information theory? How can it be used?

Thank you

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 Cover and Thomas, "Elements of Information Theory" – Deane Yang Feb 20 2010 at 15:56
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 Please check out the first two sections of the faq to see why this question does not belong on MO. In particular, it's not a question with a specific answer, and while I am sure it is interesting to some, it belongs more on a discussion forum or blog than here. – Harald Hanche-Olsen Feb 20 2010 at 16:00
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 I think that this could be made into an appropriate question, if the original poster could work out and give us a more specific subquestion. (This is where I saw it, this is what I already know about it, this is what I don't understand, etc.) – Yemon Choi Feb 20 2010 at 19:17
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 The problem is that this question is answered quite explicitly in any introductory course or text on information theory. What's the point of asking and answering such a question on Math Overflow? – Deane Yang Feb 20 2010 at 19:27
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 @Deane: Well, my hope was that the original poster could come back with a specific question that was worth answering (a point of confusion, or a technical detail). If none is forthcoming then I'll vote to close. – Yemon Choi Feb 20 2010 at 19:44

closed as too localized by Bill Johnson, Didier Piau, Gerald Edgar, S. Carnahan♦ Jun 5 2011 at 15:49

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