Polynomial growth of ideal counts at prime powers #
An ideal of norm p^k is determined by the multiplicities of the prime ideals
above p. Each multiplicity is at most k, and there are at most [K:ℚ]
such prime ideals.
theorem
NairTenenbaum.rationalPrimeBelow_eq_of_dvd_primePowerNorm
{K : Type u_1}
[Field K]
[NumberField K]
{P I : Ideal (NumberField.RingOfIntegers K)}
(hP : Prime P)
{p k : ℕ}
(hp : Nat.Prime p)
(hI : Ideal.absNorm I = p ^ k)
(hd : P ∣ I)
:
theorem
NairTenenbaum.ideal_factor_count_le_primePowerNorm
{K : Type u_1}
[Field K]
[NumberField K]
{I P : Ideal (NumberField.RingOfIntegers K)}
{p k : ℕ}
(hp : Nat.Prime p)
(hI : Ideal.absNorm I = p ^ k)
:
theorem
NairTenenbaum.idealNormCount_prime_pow_le
{K : Type u_1}
[Field K]
[NumberField K]
{p k : ℕ}
(hp : Nat.Prime p)
: