Isogenous Drinfeld modules have graded heights differing by at most deg N plus an explicit constant, with an explicit coefficient bound for rank-2 Drinfeld modular polynomials.
, On the Drinfeld discriminant function
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Heights and isogenies of Drinfeld modules
Isogenous Drinfeld modules have graded heights differing by at most deg N plus an explicit constant, with an explicit coefficient bound for rank-2 Drinfeld modular polynomials.