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Havel-Hakimi Theorem

Hi. I'm a beginner at graph theory, and I recently came across the Havel-Hakimi Theorem which is used to determine whether a sequence of integers is graphical. I am using Chartrand and Zhang's Introduction to Graph Theory, but I feel that the proof they provide is lacking. I am wondering whether anyone is aware of a proof for this theorem or where I can find one, preferably an easier one.

Thanks.

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migrated from cstheory.stackexchange.com Jun 6 '11 at 15:51

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marked as duplicate by t.b., Qiaochu Yuan Jun 6 '11 at 18:08

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Hi intuit. I think this question is out of scope for cstheory and probably more appropriate for Math.SE. Please read the FAQ. –  Kaveh Jun 6 '11 at 1:09
    
I'm sorry, is it possible to move it over to that forum? –  Isaac Kleinman Jun 6 '11 at 2:50

2 Answers 2

The proof in the book "Pearls in Graph Theory" here is quite clear.

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Look at pages 44 and page 45 of the second edition of Doug West's book Introduction to Graph Theory for what I think is a clear account accompanied by a worked out example.

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