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Theorems · Theorem · commutative algebra

spectralNorm_smul

∀ {K : Type u_2} [inst : NormedField K] {L : Type u_3} [inst_1 : Field L] [inst_2 : Algebra K L] [IsUltrametricDist K]
  (k : K) {y : L}, IsAlgebraic K y → spectralNorm K L (k • y) = ↑‖k‖₊ * spectralNorm K L y

The spectral norm is compatible with the action of K.

Defined in
Mathlib.Analysis.Normed.Unbundled.SpectralNorm
Cited by
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Foundations
Depth 223 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NormedFieldFieldAlgebraIsUltrametricDist

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