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I am interested in constructing simple connected graphs where each vertex has a fixed number of edges (degree) ahead of time. I had originally assume I could use some modification of the Havel-Hakimi algorithm to do this, but Havel-Hakimi isn't actually guaranteed to produce connected graphs. Are there any known algorithms to do this?

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  • $\begingroup$ Thank you for your comment; you are entirely correct! I somehow completely missed that; I have updated my question accordingly. $\endgroup$
    – Eric J
    Aug 8, 2018 at 22:51
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    $\begingroup$ Cool. Is this answered by the references/answers at math.stackexchange.com/q/61361/14578 and math.stackexchange.com/q/732303/14578? (Oh, and welcome to CS.SE!) $\endgroup$
    – D.W.
    Aug 8, 2018 at 23:49
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    $\begingroup$ Does each vertex have a maximum degree fixed ahead of time, or is the exact desired degree known for each vertex? $\endgroup$ Aug 9, 2018 at 2:33
  • $\begingroup$ @StellaBiderman I know the exact desired degree for each vertex. $\endgroup$
    – Eric J
    Aug 9, 2018 at 2:37

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