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Theorems · Theorem · number theory

ModularForm.sturm_bound_levelOne_nat

∀ {k : ℕ} {f : ModularForm (Matrix.SpecialLinearGroup.mapGL ℝ).range ↑k},
  ↑(k / 12) < (UpperHalfPlane.qExpansion 1 ⇑f).order → f = 0

Sturm bound for level-1 modular forms (natural weight). If a modular form f of weight k : ℕ has q-expansion of order strictly greater than k / 12, then f is identically zero.

Defined in
Mathlib.NumberTheory.ModularForms.LevelOne.DimensionFormula
Cited by
1 results in Mathlib
Foundations
Depth 336 from the axioms · uses propext, Classical.choice, Quot.sound

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