While people may debate if men marrying multiple wives or women marrying multiple husbands is ideal, the simple fact is both happen in Hinduism and are clearly at least allowed in some situations, however rarely that may be.
What are the rules for polygamy? Is the first wife/husband required to give permission, because in all the cases I know in Hinduism that definitely happens? Are there any other rules or recommendations given in scripture? How would Hindu polygamy ideally work financially, legally, and logistically?