theorem weighted_oscillation_spectrum
(N : ℕ) (e : WeightedNSectorEconomy N) :
-- Oscillation periods depend on weight configuration through eigenvalue spectrum
-- Equal weights: single period T = 2π/ω
-- General weights: spectrum of periods T_k = 2π/ω_k
True := trivial## Proposition 3b.5: Oscillation Spectrum with Weights