Every canonical form has a dual which can be gotten by inverting the status of every link. (The dual is not going to be in what you call the "canonical form" because it certainly won't be the least integer, but just redefine what you mean by "canonical form" :-)
You don't have to worry about stealing my thunder on the other stuff; if I beat you to getting it coded up I'll post something.
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Date: 2011-02-06 02:48 am (UTC)You don't have to worry about stealing my thunder on the other stuff; if I beat you to getting it coded up I'll post something.