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Theorems · Theorem · number theory

ModularForm.dimension_level_one

∀ (k : ℕ),
  Even k →
    Module.rank ℂ (ModularForm (Matrix.SpecialLinearGroup.mapGL ℝ).range ↑k) =
      ↑(if k ≡ 2 [MOD 12] then k / 12 else k / 12 + 1)

The dimension formula for 𝒮ℒ modular forms of even weight.

Defined in
Mathlib.NumberTheory.ModularForms.LevelOne.DimensionFormula
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Foundations
Depth 335 from the axioms · uses propext, Classical.choice, Quot.sound

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